240ms @ 45.83A

Condition (Vac, A)	Spec (mS)	Reading (mS)	Picture
100Vac, 45.83A	2000	276
240Vac, 45.83A	2000	170

@Vision314

Delay is in milliseconds, FYI.

Suzhou tested 100Vac and 240Vac. We only specified at 115Vac. If we are going to include their data, the 100Vac condition is more relevant. (240Vac attached above.)

sounds good, added both

Input	V (no load)	V (full load)	Load Regulation (%)
90Vac	12.026	12.019	0.06%
264Vac	12.026	12.020	0.05%

Input Voltage	12V	Load (A)	Test Result
90	12.06	0	PASS
	12	11.46	PASS
	12	22.92	PASS
	11.98	34.37	PASS
	11.98	45.83	PASS
115	12.06	0	PASS
	12	11.46	PASS
	11.99	22.92	PASS
	11.98	34.37	PASS
	11.98	45.83	PASS
230	12.06	0	PASS
	12	11.46	PASS
	12	22.92	PASS
	11.98	34.37	PASS
	11.98	45.83	PASS
264	12.06	0	PASS
	12	11.46	PASS
	12	22.92	PASS
	11.98	34.37	PASS
	11.98	45.83	PASS

Inductance of L5 was 83nH in previous model causing ripple to exceed 1% on 12V model. Increasing to 137nH puts it within spec

9/28/25

L5 Change 12V Unit

Component	Old Value	New Value
L5	83nH	137nH

1% ripple = 120mV

ALL PASS

Output Voltage	Picture	Measured Ripple
95% Vout		31.3 mV
100% Vout		46.7 mV
105% Vout		62.2 mV

Load Step

Transition	Deviation	Recovery Time
0A → 11.5A	237mV	0.2ms
11.5A → 22.9A	133mV	0.2ms
22.9A → 34.4A	140mV	0.2ms
34.4A → 45.83A	147mV	0.2ms

Load Dump

Transition	Deviation	Recovery Time
11.5A → 0A	138mV	0.2ms
22.9A → 11.5A	123mV	0.1ms
34.4A → 22.9A	147.5mV	0.1ms
45.83A → 34.4A	150mV	0.2ms

---

Load Step

Load Step	Picture	Deviation	Recovery Time
0A → 11.5A		237mV	0.2ms
11.5A → 22.9A		133mV	0.2ms
22.9A → 34.4A		140mV	0.2ms
34.4A → 45.83A		147mV	0.2ms

---

Load Dump

Load Dump	Picture	Deviation	Recovery Time
11.5A → 0A		138mV	0.2ms
22.9A → 11.5A		123mV	0.1ms
34.4A → 22.9A		147.5mV	0.1ms
45.83A → 34.4A		150mV	0.2ms

@Vision314 See https://github.com/GlobTek-Engineering/GTM965500P/issues/43#issuecomment-4247254592

fixed !

@Vision314

This spec is +/-5% (relative to nom. operating point), so the deviation is single-sided, either a +% deviation or -% deviation, not a peak to peak. If the unit deviates one way and then another way (first positive, then negative), then the peak deviation in whichever deviation is the greatest. I'd say the peak deviation is 138mV here, because the negative deviation is less (97mV)

Also, if deviation was either 138mV or 235mV (as below) it is greater than the 1% criterion, so it should have a response time.

All nitpicky, inconsequential things, but to make sure you know how to interpret the spec.

>### Load Dump

>| Load Dump | Picture | Deviation | Recovery Time |

>|----------|--------|----------|---------------|

woops, yeah that makes sense. fixed.

PINS/NET/COMPONENT	ROUTING/VALUE BEFORE	ROUTING/VALUE AFTER
U6 (1)	+5VREG	SECPOS - VZ
Ua4 (6)	+5VREG	SECPOS - VZ
Ra17 (not optok)	+5VREG	SECPOS - VZ
LDO CIRCUIT	ON MAIN PCB	ON REGULATION BOARD
ZD9	--	0V
MAIN BOARD
A1 REGULATION BOARD

Output Voltage Overshoot

Condition	90 Vac	264 Vac
No Load	0mV	0mV
Full Load	0mV	0mV

Output Voltage Overshoot

Condition	90 Vac	264 Vac
No Load
Full Load

Input Voltage	Output Voltage	SPEC 100% Load	Hold Up Time (ms) 100% Load (45.83 A)	SPEC 50% Load	Hold Up Time (ms) 50% Load (22.9 A)
90Vac	11.4	20ms	25.7	50ms	54.3
	12	20ms	25.5	50ms	51.3
	13.1	20ms	23.1	50ms	46.1
264Vac	11.4	20ms	26.5	50ms	54.3
	12	20ms	25.1	50ms	51.3
	13.1	20ms	23.9	50ms	47.9

---

Screenshot @264Vac, 13.1V output:

Yellow - Output Voltage

Blue - PG signal

Pink - mains voltage

	Spec (mS)	Reading (mS)	Result	Picture
100Vac	>=20	26.4	PASS
240Vac	>=20	25.6	PASS

85% load = 37.1A

Part A — Remote Sense Compensation

Condition	V @ Supply	V @ Load	V_Cable Drop
SNS Leads Disconnected	12.6 V	11.72 V	0.88 V
SNS Leads Connected	13.3 V	12.37 V	0.93 V
V_Comp ¹	700 mV	—	—
V_Comp Spec	500 mV min	—	PASS

¹ V_Comp = V_Supply(connected) − V_Supply(disconnected)

Part B - No damage

Voltage @ Supply	Voltage @ Load
13.7V	12.8V

Part C - No damage

Voltage @ Supply	Voltage @ Load
13.7 V	12.7 V

85% load = 37.1A

Part A

Step #	Voltage @ Supply	Voltage @ Load
1	12.6V	11.72 V
3	13.3 V	12.37 V

Part B - No damage

Voltage @ Supply	Voltage @ Load
13.7V	12.8V

Part C - No damage

Voltage @ Supply	Voltage @ Load
13.7 V	12.7 V

@Vision314

> Part A

>

> 1. 12.608 V

> 2. ..

> 3. 12.86 V

>

The voltage has only increased by 252mV (if judging by 12.86-12.608). Our spec is 500mV (min.). Have you confirmed the length of wire you are using is sufficient to generate at least 500mV drop at the load current?

(You can just apply a 37.1A load (without remote sense attached) and check the difference in voltage at the PCB versus at the load to confirm.)

> * voltage @ load is only about 12.5V, should be 12.6

This might be considered "normal", as when SNS leads are connected, there is still *some* contribution from the sense points on the PCB, so we may not expect perfect regulation. Perhaps we could add a "load regulation" line to the remote sense part of the spec...maybe +/-2%.

@Vision314 Good. I suggest updating the SNS results tables to something like this. This shows the "natural" drop of the cable, and then the amount of voltage the SNS circuit was able to "add back", and the spec.

Step #	Voltage @ Supply	Voltage @ Load	V_Cable drop
1	12.6V	11.72 V	0.88V
3	13.3 V	12.37 V
V_Comp	0.70V
V_Comp (Spec)	0.50V (min.)

Req of Ra8, Ra9 and Ra11, Ra12 is 45.3kOhm

Ra8, Ra11 = 44.2kOhm

Ra9, Ra12 = 1.1kOhm

Ra14 = 18kOhm

Output range: 11.4V -> 12.6V

For future reference:

@Vision314 Good, can you make a separate 'result' tag for the two voltage measurements after the change?

And flag the "Changes required" field as "Yes"...although I guess that might be irrelevant if we are parsing and checking for the 'change' word

For easy verification against the spec, the results should probably have been presented in percentage. 13.2V is exactly 110% of 12Vdc. Probably no need to update the spec; no one really cares, I'm pretty sure.

Suzhou test condition 264Vac/No Load does not show the voltage collapsing to zero. Why? At full load, the images indicate a latching protection, but the reduce threshold makes me think that it's OPP masquerading as OVP, and OPP is not latching. Could look latching if you hold the short on the opto for long enough. ;-)

I think these values are the best way to go

COMPONENT	OLD VALUE	NEW VALUE
C26	6.8nF	6.8nF
C27	3.3nF	2.2nF

Input Voltage	Output Voltage	OPP Point (A)	OPP Point (%)	PG Time (ms)
90Vac	11.4	68	148%	0
	12	64	140%	9.5
	13.1	47	112%	9.5
264Vac	11.4	78	170%	9.5
	12	64	140%	9.5
	13.1	47	112%	9.5

COMPONENT	OLD VALUE	NEW VALUE
C26	6.8nF	5.6nF
C27	3.3nF	4.7nF

OPP point is within specified range, but PG time for 90Vac typ and min output voltage is too quick. I suspect this is a problem related to the PFC at 90Vac. looking into it.

OPP Point and PG time for new values:

Input Voltage	Output Voltage	OPP Point (A)	OPP Point (%)	PG Time (ms)
90Vac	11.4	62	135%	0
	12	60	131%	0
	13.3	49	118%	10
240Vac	11.4	80	175%	10
	12	71	155%	9.6
	13.3	49	118%	9.5

@Vision314

> OPP point is within specified range, but PG time for 90Vac typ and min output voltage is too quick. I suspect this is a problem related to the PFC at 90Vac. looking into it.

PG time >100% load is a non-specified condition, so let's not worry about it. That said, PG time is "0" because the PFC is turning off and PFC does not signal ahead to the LLC controller about that. So, when the PFC turns off, the LLC turns off; there is no warning.

The remaining issue is that OPP @ 90Vac is different than at 240Vac, which indicates a PFC issue as noted. We could also consider this a "don't care" condition since 131 - 135% is within range, but it seems to indicate that PFC is borderline/marginally operating. We should check SNSMAINS or PFC OCP again.

PG time is good at 120Vac anyway.

I'll see what I can find in the PFC.

Input Voltage	Output Voltage	OPP Point (A)	OPP Point (%)	PG Time (ms)
90Vac	11.4	62	135%	0
	12	60	131%	0
	13.3	49	118%	10
120Vac	11.4	79	172%	10
	12	69	151%	10
	13.3	48	116%	10
240Vac	11.4	80	175%	10
	12	71	155%	9.6
	13.3	49	118%	9.5

1. Removed the temperature sensing circuit from the PFC SNSMAINS to see if it was similar to the noise issue we had on the 24V

- No change, so that's not the source of the issue

2. RINGO isn't showing any protection triggers on PFC

3. RINGO was not on the most recent version.

- Fsw min was set to 65k. Reset it to 25k (TEA2376 V9)

- no change in OPP point at 90Vac

4. Will check LLC RINGO next

@Vision314

> Input Voltage Output Voltage OPP Point (A) OPP Point (%) PG Time (ms)

> 12 60 131% 0

> 12 69 151% 10

> 12 71 155% 9.6

12V nominal condition at 120V or 240Vac should be set to 130-135%.

> Removed the temperature sensing circuit from the PFC SNSMAINS to see if it was similar to the noise issue we had on the 24V

Please check whether the PFC voltage starts to drop as the load approaches 130% @ 90Vac. We've seen that PFC voltage droping to ~300V causes the LLC drop out due to undervoltage and/or overcurrent due to lower PFC voltage. (Lower PFC voltage = higher LLC current.)

I would be hesitant to ascertain that SNSMAINS is not the source of the issue, even if removal of the OTP circuit does not change the situation.

PFC voltage is dropping before it hits OPP point at 90Vac, 12V output.

This photo is after I added the SNSMAINS rework from the 24V.

Replaced all the resistors in the instrumentation amplifier on the regulation board just to double check and make sure there's nothing wrong there.

> Noting current values for regulation board. For testing between -5% to +(5% + 500mV) => 11.4V to 13.1V

>

> 11.2 V -> 13.3V

>

> Ra8, Ra11 = 44.2kOhm

> Ra9, Ra12 = 300Ohm

> Ra10, Ra13 = 10kOhm

>

> EDIT: make sure they are 0.1% resistors

https://github.com/GlobTek-Engineering/GTM965500P/issues/66#issue-4147286551

Re-ran OPP test with 11.4 to 13.1 V output voltage range.

COMPONENT	OLD VALUE	NEW VALUE
C26	6.8nF	5.6nF
C27	3.3nF	4.7nF

OPP point is within specified range, but PG time for 90Vac typ and min output voltage is too quick. I suspect this is a problem related to the PFC at 90Vac. looking into it.

OPP Point and PG time for new values:

Input Voltage	Output Voltage	OPP Point (A)	OPP Point (%)	PG Time (ms)
90Vac	11.4	68	148%	0
	12	62	135%	9.5
	13.1	47	112%	9.5
264Vac	11.4	80	175%	9.5
	12	65	142%	9.5
	13.1	47	112%	9.5

@Vision314

> I think these values are the best way to go

>

> COMPONENT OLD VALUE NEW VALUE

> C26 6.8nF 6.8nF

> C27 3.3nF 2.2nF

> Input Voltage Output Voltage OPP Point (A) OPP Point (%) PG Time (ms)

> 90Vac 11.4 68 148% 0

> 12 64 140% 9.5

> 13.1 47 112% 9.5

> 264Vac 11.4 78 170% 9.5

> 12 64 140% 9.5

> 13.1 47 112% 9.5

Looks good. Yes, as a general rule, if you want to give flexibility for tuning (trimming) in the future, and you have two components (either in series or parallel) which do the tuning, and both are using E-preferred values (1, 1.5, 2.2, 3.3, 4.7, 6.8), best to have one of the two be as big as possible (for coarse tuning), and the second is smaller to allow for more granular fine tuning. More granularity with the smaller values because the jump from 1 to 1.5 is small, but the jump from 4.7 to 6.8 is big, for example.

Also, shall we leave this open to indicate that we still want to take a look at the 90Vac / 11.4V PFC drop issue which has not been resolved? Or do we make a separate issue and make some sort of reference to it?

TESTING A CHANGE

TESTING A CHAGNE TO PROJECT

#

100Vac 12V/45.83A	240Vac 12V/45.83A

F4 grounding configuration:

Condition	S1 (Neutral)	S5 (Phase reversal)	S7 (Earth)	Spec (uA)	Measured Current (uA)	PASS/FAIL
N.C.	1	N	1	80	51	PASS
N.C.	1	R	1	80	40	PASS
S.F.C. (Open Neutral)	0	N	1	120	65.1	PASS
S.F.C. (Open Neutral)	0	R	1	120	67	PASS
S.F.C. (Open Earth)	1	N	0	120	74.7	PASS
S.F.C. (Open Earth)	1	R	0	120	74.8	PASS

E1 grounding configuration:

Condition	S1 (Neutral)	S5 (Phase reversal)	S7 (Earth)	Spec (uA)	Measured Current (uA)	PASS/FAIL
N.C.	1	N	1	5	0.2	PASS
N.C.	1	R	1	5	0.28	PASS
S.F.C. (Open Neutral)	0	N	1	275	0.5	PASS
S.F.C. (Open Neutral)	0	R	1	275	0.6	PASS
S.F.C. (Open Earth)	1	N	0	275	174.2	PASS
S.F.C. (Open Earth)	1	R	0	275	177.3	PASS

545 mW

See: https://github.com/GlobTek-Engineering/GTM965500P/issues/24#issuecomment-4255997812

I think we can say this passes because of this test:

https://github.com/GlobTek-Engineering/GTM965500P/issues/66#issuecomment-4165330637

Input Voltage	Output Voltage	Load (A)	Test Result
90	12.06	0	PASS
90	11.98	45.83	PASS
120	12.06	0	PASS
120	11.98	45.83	PASS
240	12.06	0	PASS
240	11.98	45.83	PASS
264	12.06	0	PASS
264	11.98	45.83	PASS

> I think we can say this passes because of this test:

>

> [#66 (comment)](https://github.com/GlobTek-Engineering/GTM965500P/issues/66#issuecomment-4165330637)

Yes, including this "Input Voltage" test is sort of a formality because many other tests will incidentally do the same test.

CE test in september:

[document2.pdf](https://github.com/user-attachments/files/27714283/document2.pdf)

CE test yesterday:

[230Vac_12V_45A_N.pdf](https://github.com/user-attachments/files/27714276/230Vac_12V_45A_N.pdf)

[RESULT]

110Vac Line (E1)	110Vac Neutral (E1)

230Vac Line (E1)	230Vac Neutral (E1)

GTSZ only provided data for 'E1'. To do: Check with Suzhou whether they have 'F4' data; if not, do we have data which indicates that E1 is worst case?

[RESULT]

110Vac Horizontal (E1)	110Vac Vertical (E1)

230Vac Horizontal (E1)	230Vac Vertical (E1)

Testing above data November 7th 2025, pre-dates proposed RE changes. Awaiting re-test with RE changes.

Missing F4 test data or evidence that E1 is worst case and that F4 does not need to be tested.

- You don't have to redo this test, but the spec is not 1.25A max as it says in your test.

- The spec will change for each cap based on its rated ripple current, and following our derating guidlines (attatched), the spec should be 90% of the rated ripple current.

- For example, C55 on the 24V is an Aishi RJ 8*20mm 330uF 35V cap, rated for 1.960Arms ripple current. Making our spec 1.764Arms. Make sure the rating is specific for the cap used.

Some information with the GTSZ test is incorrect or misleading

1. Q1 is labeled as NCE65TF130F but in the most recent BOM it is NCE65TF99F. Was this test for Q1 or mislabeled for Q4 or Q5?

2. The breakdown voltage for both NCE65TF99F and NCE65TF130F is 650V not 600V. Passing spec should be 80% of the recommended breakdown voltage.

3. Breakdown voltage for HYG025N06LS1P (Q6 - Q9) is 60V in the datasheet. Vds should not go above 48V to pass spec

A more informative table format is shown below:

Proper Component Stress Table

Schematic Label	Part Name	Breakdown Voltage (V)	SPEC (80%)	Vds @ 100Vac	Picture	Vds @ 264Vac	Picture
Q1, Q2	NCE65TF99F	650	520
Q4, Q5	NCE65TF130F	650	520
Q6, Q7, Q8, Q9	HYG025N06LS1P	60	48

@Vision314

Actually Q6-Q9 PN is: HYG023N04LS1P. We had changed between EVT-1 and EVT-2 from 60V/2.5mR to 40V/2.3mR

570mW

See: https://github.com/GlobTek-Engineering/GTM965500P/issues/24#issuecomment-4255997812

239ms @ 22.9A

Condition	Spec (mS)	Reading (mS)	Picture	Result
100Vac, 22.916A	2000	1150		PASS
240Vac, 22.916A	2000	710		PASS

@Vision314

> # GTSZ

> Condition Spec (mS) Reading (mS) Result

> 100Vac, 22.916A 2000 1150 PASS

> 240Vac, 22.916A 2000 710 PASS

Suzhou's delays are much longer than expected. I suspect something is not quite right on Suzhou unit. The turn-on delays should be relatively constant regardless of output voltage. How do we mark this to let them know as an FYI?

I marked as re-test/clarifiation req'd for now.

I think it's better to mark this as has issue, and we can resolve it later

I do notice that sometimes, there is some kind of "cold start" situation with the supplies. I'm not sure if that's a thing that can happen, but I can recall that if a unit has been sitting for a couple days not being tested, when I turn it on for the first time there is a longer than usual delay for it to fully turn on, an extra second or so

I think this can be resolved, turn on delay passes always even with weird "cold start" situation

Input	V (no load)	V (full load)	Load Regulation (%)
90Vac	24.036	24.033	0.01%
264Vac	24.036	24.032	0.02%

GTSZ

Input Voltage	12V	Load (A)	Test Result
90	24.094	0	PASS
	24.02	5.73	PASS
	24.02	11.46	PASS
	24.01	17.19	PASS
	24.01	22.916	PASS
115	24.094	0	PASS
	24.02	5.73	PASS
	24.02	11.46	PASS
	24.01	17.19	PASS
	24.01	22.916	PASS
230	24.094	0	PASS
	24.02	5.73	PASS
	24.02	11.46	PASS
	24.01	17.19	PASS
	24.01	22.916	PASS
264	24.094	0	PASS
	24.02	5.73	PASS
	24.02	11.46	PASS
	24.01	17.19	PASS
	24.01	22.916	PASS

Measured L5 = 350nH

ALL PASS

1% ripple = 240mV

Output Voltage	Picture	Measured Ripple
95% Vout		29.2mV
100% Vout		51.7mV
105% Vout		84.2mV

Load Step

Transition	Deviation	Recovery Time
0A → 5.7A	493mV	0.243ms
5.7A → 11.5A	248mV	0.188ms
11.5A → 17.2A	255mV	0.188ms
17.2A → 22.9A	303mV	0.187ms

Load Dump

Transition	Deviation	Recovery Time
0A → 5.7A	220mv	Dev. <1%
5.7A → 11.5A	182mV	Dev. <1%
11.5A → 17.2A	181.7mV	Dev. <1%
17.2A → 22.9A	207.5mV	Dev. <1%

---

1% = 240mV

Load Step

Load Step	Picture	Deviation	Recovery Time
0A → 5.7A		493mV	0.243ms
5.7A → 11.5A		248mV	0.188ms
11.5A → 17.2A		255mV	0.188ms
17.2A → 22.9A		303mV	0.187ms

Load Dump

Load Dump	Picture	Deviation	Recovery Time
0A → 5.7A		220mv	Dev. <1%
5.7A → 11.5A		182mV	Dev. <1%
11.5A → 17.2A		181.7mV	Dev. <1%
17.2A → 22.9A		207.5mV	Dev. <1%

In reviewing the transient response for 12, 24V, and 54V, many times the peak deviation does not ever exceed the 1% recovery threshold, so the recovery time should probably be marked as "N/A" or "Dev. < 1%" for those items. (Cannot quantify how long it takes to recovery if it never deviated outside of our bounds to start with.) Above, all of the load steps exceed 1% deviation (240mV), so first we need to assess whether the peak deviation has exceeded the 5% max or not. (All OK.) Then, for those which have exceeded 1% deviation (but less than 5%), check how long it takes to recover to 1%. Seems like most are in the 200-300us range. Writing <1ms is OK as a pass/fail. For the future, you *could* record the actual recovery time.

No need to re-test, just update those which never deviated outside of 1% to "Dev. < 1%" or similar.

As a note:

I'd probably set the cursors as follows:

Y(1): At peak of measured waveform (measured max deviation)

Y(2): At the 1% recovery threshold

X(1): At t=0 (the moment the load step is applied)

X(2): At the moment the voltage recovers to less than Y(2), the recovery threshold (measured recovery time)

It may make sense (in general, all types of tests), to present data with the specified limits presented in line. This way, you can easily see (at a glance) whether the spec is met or not, no need to scroll up or remember what the spec is.

Load Dump Condition	Picture	Max Deviation	Max Deviation (Spec)	Recovery Time	Recovery Time (Spec)

fixed !

PINS/NET/COMPONENT	ROUTING/VALUE BEFORE	ROUTING/VALUE AFTER
U6 (1)	+5VREG	SECPOS - VZ
Ua4 (6)	+5VREG	SECPOS - VZ
Ra17 (not optok)	+5VREG	SECPOS - VZ
LDO CIRCUIT	ON MAIN PCB	ON REGULATION BOARD
ZD9	--	12V
MAIN BOARD
A1 REGULATION BOARD

Output Voltage Overshoot

Condition	90 Vac	264 Vac
No Load	0mV	0mV
Full Load	0mV	0 mV

Output Voltage Overshoot

Condition	90 Vac	264 Vac
No Load
Full Load

Input Voltage	Output Voltage	SPEC 100% Load	Hold Up Time (ms) 100% Load (22.9 A)	SPEC 50% Load	Hold Up Time (ms) 50% Load (11.5 A)
90Vac	22.8	20ms	28.3	50ms	56.3
	24	20ms	27.5	50ms	52.3
	25.7	20ms	25.5	50ms	50.7
264Vac	22.8	20ms	28.9	50ms	56.3
	24	20ms	27.3	50ms	52.3
	25.7	20ms	25.7	50ms	50.1

85% load = 19.5A

Part A — Remote Sense Compensation

Condition	V @ Supply	V @ Load	V_Cable Drop
SNS Leads Disconnected	25.2 V	24.25 V	0.95 V
SNS Leads Connected	25.8 V	24.9 V	0.9 V
V_Comp ¹	600 mV	—	—
V_Comp Spec	500 mV min	—	PASS

¹ V_Comp = V_Supply(connected) − V_Supply(disconnected)

Part B - No damage

Voltage @ Supply	Voltage @ Load
26.45 V	25.2 V

Part C - No damage

Voltage @ Supply	Voltage @ Load
26.3 V	25.5 V

Part A

12AWG	~6ft	Rwire = 0.013 Ohm

85% load = 19.5A

1. 25.3 V

2. ..

3. 25.67 V

Part B

1. When I connected the SNS- to +load, there was a spark between those two terminals and the supply OVP'd. On startup the output voltage goes to ~40V and OVP's.

Part C

1. ...

The ZD7 TVS diode was removed previously for other rework troubleshooting

When the SNS+ connection touched the negative output terminal, this create some large voltage spike that damaged RJ2

RJ2 Failure Mode: open

Replacing RJ2 with another 2.2Ohm resistor fixed the supply

Solution: don't remove TVS diodes, we need them...

I will finish SNS testing shortly

Previous issues were caused by broken/missing/incorrect TVS diodes for ZD6 and ZD7. Must be 54V zener ("RE" marking) for all voltage models.

85% load = 19.5A

Part A

Step #	Voltage @ Supply	Voltage @ Load
1	25.2 V	24.25 V
3	25.8 V	24.9 V

Part B - No damage

Voltage @ Supply	Voltage @ Load
26.45 V	25.5 V

Part C - No damage

Voltage @ Supply	Voltage @ Load
26.3 V	25.5 V

See: https://github.com/GlobTek-Engineering/GTM965500P/issues/55#issuecomment-4256097729

Req of Ra8, Ra9 and Ra11, Ra12 is 90.7kOhm

Ra8, Ra11 = 88.7kOhm

Ra9, Ra12 = 2kOhm

Ra14 = 16kOhm

Output range: 22.8V -> 25.2V

@Vision314 Good, can you make a separate 'result' tag for the two voltage measurements after the change?

And flag the "Changes required" field as "Yes"...although I guess that might be irrelevant if we are parsing and checking for the 'change' word

added !

Same as for the 12V, presenting in terms of percentage would have been better for verifying against the spec; maybe a note to Suzhou. When indicating a "pass" the unit of measure should correspond to the unit of measure in the specifications (e.g. if spec is written in %, the final result should be in % to make a pass/fail judgement.. not V, mV, A, etc. (The raw value should of course be recorded too.)

Here, it is more clear that the protection at full load is OPP because the pulse width is ~50ms which corresponds with the 50ms OPP protection timer. 35.6V is very close to the 150% upper threshold. Maybe we change to 155%.

Spec: Over-Voltage Protection: 110-155%, latching, cycle AC power to reset

COMPONENT	OLD VALUE	NEW VALUE
C26	6.8nF	5.6nF
C27	3.3nF	2.2nF

Input Voltage	Output Voltage	OPP Point (A)	OPP Point (%)	PG Time (ms)
90Vac	22.8	33	144%	10
	24	32	140%	10
	25.7	24	112%	10
264Vac	22.8	38	166%	10
	24	32	140%	10
	25.7	24	112%	10

Trying the same values as the 12V:

COMPONENT	OLD VALUE	NEW VALUE
C26	6.8nF	6.8nF
C27	3.3nF	2.2nF

Input Voltage	Output Voltage	OPP Point (A)	OPP Point (%)	PG Time (ms)
90Vac	22.8	34	148%	0
24	32	140%	9.5
25.7	27	126%	9.5
264Vac	22.8	43	188%	9.5
24	36	157%	9.5
25.7	27	126%	9.5

---

FRANKIE TESTING NOTES:

4/1/26

Noting current values for regulation board. For testing between -5% to +(5% + 500mV) => 22.8 V -> 25.7V

21.4 V -> 26.5V

Ra8, Ra11 = 84.5kOhm

Ra9, Ra12 = 100Ohm

Ra10, Ra13 = 10kOhm

Ra14 = 7.5kOhm

PASS

#

100Vac 24V/22.916A	240Vac 24V/22.916A

22.9A

F4 grounding configuration:

Condition	S1 (Neutral)	S5 (Phase reversal)	S7 (Earth)	Spec (uA)	Measured Current (uA)	PASS/FAIL
N.C.	1	N	1	80	52	PASS
N.C.	1	R	1	80	51	PASS
S.F.C. (Open Neutral)	0	N	1	120	84	PASS
S.F.C. (Open Neutral)	0	R	1	120	83.9	PASS
S.F.C. (Open Earth)	1	N	0	120	86.4	PASS
S.F.C. (Open Earth)	1	R	0	120	85	PASS

E1 grounding configuration:

Condition	S1 (Neutral)	S5 (Phase reversal)	S7 (Earth)	Spec (uA)	Measured Current (uA)	PASS/FAIL
N.C.	1	N	1	5	0.19	PASS
N.C.	1	R	1	5	0.28	PASS
S.F.C. (Open Neutral)	0	N	1	275	0.4	PASS
S.F.C. (Open Neutral)	0	R	1	275	0.5	PASS
S.F.C. (Open Earth)	1	N	0	275	192.5	PASS
S.F.C. (Open Earth)	1	R	0	275	187.5	PASS

Input Voltage	Output Voltage	Load (A)	Test Result
90	24.094	0	PASS
90	24.01	22.916	PASS
120	24.094	0	PASS
120	24.01	22.916	PASS
240	24.094	0	PASS
240	24.01	22.916	PASS
264	24.094	0	PASS
264	24.01	22.916	PASS

https://github.com/GlobTek-Engineering/GTM965500P/issues/68#issuecomment-4172278539

Suzhou 24V test report is missing CE data

- You don't have to redo this test, but the spec is not 1.25A max as it says in your test.

- The spec will change for each cap based on its rated ripple current, and following our derating guidlines (attatched), the spec should be 90% of the rated ripple current.

- For example, C55 on the 24V is an Aishi RJ 8*20mm 330uF 35V cap, rated for 1.960Arms ripple current. Making our spec 1.764Arms. Make sure the rating is specific for the cap used.

GTSZ Component Stress Test

Some information with the GTSZ test is incorrect or misleading

1. Q1 is labeled as NCE65TF130F but in the most recent BOM it is NCE65TF99F. Was this test for Q1 or mislabeled for Q4 or Q5?

2. The breakdown voltage for both NCE65TF99F and NCE65TF130F is 650V not 600V. Passing spec should be 80% of the recommended breakdown voltage.

3. Breakdown voltage for HYG060N08NS1P (Q6 - Q9) is 80V in the datasheet. Vds should not go above 64V to pass spec

A more informative table format is shown below:

Proper Component Stress Table

Schematic Label	Part Name	Breakdown Voltage (V)	SPEC (80%)	Vds @ 100Vac	Picture	Vds @ 264Vac	Picture
Q1, Q2	NCE65TF99F	650	520
Q4, Q5	NCE65TF130F	650	520
Q6, Q7, Q8, Q9	HYG060N08NS1P	80	64

560mW

> [RESULT] 560mW

We could:

1. Change the spec to "500mW typ."...a bit of "specsmanship",

2. Change the spec to "600mW max."

3. Analyze where the 500-600mW is coming from...It does seem a bit high for essentially only the aux supply operating.

500mW (max.) *is* a popular spec among the competition, though I kind of doubt customers actually care...

--

Aux supply has pre-load resistors R71 and R72 to improve its cross regulation performance. About 80mW dissipated in R71 (12^2/ 590*3), and 40mW dissipated in R72 (5^2/590). But we cant' really change the values because they affect the cross-regulation performance.

560 - 120 = 440mW

Startup resistors R59 and R60 should only account for maybe 10mW. Bleeder resistors R1 and R2 about the same.

So where's all this remaining power going...hmm..

We saw those big gulps of 4 or 5W on the Yokogawa, right? That's probably it. That might be indicative of LLC or PFC controller trying to stay afloat via SUPHV startup resistors (which is very lossy, but not an issue because it's only supposed to activate once at startup.)

I think we should try to pin-point who is demanding power when we see the big 4-5W (?) gulps. Let's look at it together. We'll take a look at SUPIC. If it does not seem easily solvable, we'll punt on it an just adjust the spec I think.

277ms @ 10.2A

> [RESULT] 227ms @ 10.2A

Since the delay is considerably less than 2 seconds, there's no concern. Turn on delay is the time between AC turn on and when the output reaches 100% * V_out. I realize I did not explicitly write time to 100%, and DC turn-on could be interptetted as the moment the DC starts coming up. For rise-time, which is not this test, measured as the time it takes to rise from V_out * 10% to V_out * 90%.

Here, the second cursor should have been about 50ms farther out, when output voltage reaches 100%.

Suggest re-testing this one, or adding a note to the screenshot indicating cursor does not match up with actual delay, and then estimate the turn on delay by eye.

sounds good, made a note of the estimated turn on delay in the screenshot and changed the result to +50ms, about right...

Input	V (no load)	V (full load)	Load Regulation (%)
90Vac	54.03	54.03	0.00%
264Vac	54.03	54.03	0.00%

L5 Measured @ 329nH for 54V

output voltage <28V, L5 should equal 150nH

output voltage >28V, L5 should equal 300nH

1% ripple = 540mV

ALL PASS

Output Voltage	Picture	Measured Ripple
95% Vout		76.7mV
100% Vout		103mV
105% Vout		163mV

@Vision314

Good. For the future, I would include all spurious parts of the waveform as part determining the ripple. I know 95% of the waveform falls within the bounds you show, but it's still a bit subjective.

We are very far away from the limit here so it's not really an issue.

1% = 540mV

5% = 2.7V

Load Step

Transition	Deviation	Recovery Time
0A → 2.5A	400mV	Dev. <1%
2.5A → 5.1A	183mV	Dev. <1%
5.1A → 7.65A	223mV	Dev. <1%
7.65A → 10.2A	210mV	Dev. <1%

Load Dump

Transition	Deviation	Recovery Time
0A → 2.5A	280mV	Dev. <1%
2.5A → 5.1A	200mV	Dev. <1%
5.1A → 7.65A	217mV	Dev. <1%
7.65A → 10.2A	237mV	Dev. <1%

---

Load Step

Load Step	Picture	Deviation	Recovery Time
0A → 2.5A		400mV	Dev. <1%
2.5A → 5.1A		183mV	Dev. <1%
5.1A → 7.65A		223mV	Dev. <1%
7.65A → 10.2A		210mV	Dev. <1%

---

Load Dump

Load Dump	Picture	Deviation	Recovery Time
0A → 2.5A		280mV	Dev. <1%
2.5A → 5.1A		200mV	Dev. <1%
5.1A → 7.65A		217mV	Dev. <1%
7.65A → 10.2A		237mV	Dev. <1%

See: https://github.com/GlobTek-Engineering/GTM965500P/issues/43#issuecomment-4247254592

fixed !

PINS/NET/COMPONENT	ROUTING/VALUE BEFORE	ROUTING/VALUE AFTER
U6 (1)	+5VREG	SECPOS - VZ
Ua4 (6)	+5VREG	SECPOS - VZ
Ra17 (not optok)	+5VREG	SECPOS - VZ
LDO CIRCUIT	ON MAIN PCB	ON REGULATION BOARD
ZD9	--	30V
MAIN BOARD
A1 REGULATION BOARD

Output Voltage Overshoot

Condition	90 Vac	264 Vac
No Load	0mV	0mV
Full Load	0mV	0mV

Output Voltage Overshoot

Condition	90 Vac	264 Vac
No Load
Full Load

Input Voltage	Output Voltage	SPEC 100% Load	Hold Up Time (ms) 100% Load (10.2 A)	SPEC 50% Load	Hold Up Time (ms) 50% Load (5.09 A)
90Vac	51.3	20ms	27.5	50ms	54.9
	54	20ms	27.1	50ms	50.9
	57.2	20ms	24.7	50ms	49.1
264Vac	51.3	20ms	27.3	50ms	53.3
	54	20ms	27.1	50ms	51.5
	57.2	20ms	25.7	50ms	49.1

---

@ max output voltage @ 50% load, the Hold Up time is a little bit slow. but maybe we don't care....

85% load = 8.67A

Part A — Remote Sense Compensation

Condition	V @ Supply	V @ Load	V_Cable Drop
SNS Leads Disconnected	56.83 V	56.12 V	0.71 V
SNS Leads Connected	57.3 V	56.47 V	0.83 V
V_Comp ¹	470 mV	—	—
V_Comp Spec	500 mV min	—	FAIL

¹ V_Comp = V_Supply(connected) − V_Supply(disconnected)

Part B - No damage

Voltage @ Supply	Voltage @ Load
58.16 V	57.34 V

Part C - No damage

Voltage @ Supply	Voltage @ Load
58 V	57.3 V

85% load = 8.67A

Part A

Step #	Voltage @ Supply	Voltage @ Load
1	56.83 V	56.12 V
3	57.3 V	56.47 V

Part B - No damage

Voltage @ Supply	Voltage @ Load
58.16 V	57.34V

Part C - No damage

Voltage @ Supply	Voltage @ Load
58V	57.3V

> [RESULT] 85% load = 8.67A

>

> ### Part A

> Step # Voltage @ Supply Voltage @ Load

> 1 56.83 V 56.12 V

> 3 57.3 V 56.47 V

57.3 - 56.83V is 0.47V, which means the remote sense circuit added 470mV to the output voltage, which is still short of 500mV. Question is whether the wire resistance is still too low or if it is indeed limited to ~470mV of added compensation.

See: https://github.com/GlobTek-Engineering/GTM965500P/issues/55#issuecomment-4256097729

@Vision314

> > [RESULT] 85% load = 8.67A

> > ### Part A

> > Step # Voltage @ Supply Voltage @ Load

> > 1 56.83 V 56.12 V

> > 3 57.3 V 56.47 V

>

> 57.3 - 56.83V is 0.47V, which means the remote sense circuit added 470mV to the output voltage, which is still short of 500mV. Question is whether the wire resistance is still too low or if it is indeed limited to ~470mV of added compensation.

Actually, we have all the information we need. I apparently just got lost interpreting the data the other day.

Step #	Voltage @ Supply	Voltage @ Load	V_Cable drop
1	56.83V	56.12 V	0.71V
3	57.3 V	56.47 V
V_Comp	0.47V
Spec	0.50V (min.)

The cable/resistor is producing 0.71V of natural drop, but the SNS circuit is only compensating/adding an addition 470mV. Can you double check that Da1 and Da2 (on the regulation board) are the same type as on the 12V and 24V? We didn't happen to swap those out before, right?

It could just be that we are inherently limited at 57.3V due to LLC limitation @ 85% load? Try repeating this test at ~95% load. If the voltage at the supply does not reach 57.3V as it did at 85% load, maybe the LLC has run out of gain and so its inherently limited.

Maybe an interesting point for units running below the resonant frequency (i.e. not a multiple of 12V). They are already operating under boost gain (up the LLC gain curve, to the left of the resonant frequency), so they might not have much boost left.

Ra8, Ra11 = 200kOhm

Ra9, Ra12 = 4kOhm

Ra10, Ra13 = 10kOhm

Ra14 = 18kOhm

Output range: 51.3V -> 56.7

@Vision314 Good, can you make a separate 'result' tag for the two voltage measurements after the change?

And flag the "Changes required" field as "Yes"...although I guess that might be irrelevant if we are parsing and checking for the 'change' word

added the separate result and change tags

i think it'll be more clear to just have "changes" and since they are already specified for a voltage model or a model level change, it will make sense when we look back at it in the future.

COMPONENT	OLD VALUE	NEW VALUE
C26	6.8nF	6.8nF
C27	3.3nF	2.2nF

Input Voltage	Output Voltage	OPP Point (A)	OPP Point (%)	PG Time (ms)
90Vac	51.3	15	147%	30
	54	13	128%	10
	57.2	11	114%	10
264Vac	51.3	17	167%	10
	54	13	128%	10
	57.2	11	114%	10

yup works.

9.7A

F4 grounding configuration:

Condition	S1 (Neutral)	S5 (Phase reversal)	S7 (Earth)	Spec (uA)	Measured Current (uA)	PASS/FAIL
N.C.	1	N	1	80	53.3	PASS
N.C.	1	R	1	80	53	PASS
S.F.C. (Open Neutral)	0	N	1	120	86.8	PASS
S.F.C. (Open Neutral)	0	R	1	120	86.7	PASS
S.F.C. (Open Earth)	1	N	0	120	86.5	PASS
S.F.C. (Open Earth)	1	R	0	120	88.7	PASS

E1 grounding configuration:

Condition	S1 (Neutral)	S5 (Phase reversal)	S7 (Earth)	Spec (uA)	Measured Current (uA)	PASS/FAIL
N.C.	1	N	1	5	0.19	PASS
N.C.	1	R	1	5	0.28	PASS
S.F.C. (Open Neutral)	0	N	1	275	0.4	PASS
S.F.C. (Open Neutral)	0	R	1	275	0.6	PASS
S.F.C. (Open Earth)	1	N	0	275	181.5	PASS
S.F.C. (Open Earth)	1	R	0	275	189	PASS

https://github.com/GlobTek-Engineering/GTM965500P/issues/67#issuecomment-4172429455

230Vac_54V_10A_L

[230Vac_54V_10A_L.pdf](https://github.com/user-attachments/files/27611773/230Vac_54V_10A_L.pdf)

230Vac_54V_10A_N

[230Vac_54V_10A_N.pdf](https://github.com/user-attachments/files/27611777/230Vac_54V_10A_N.pdf)

Comparison between 54V N and 12V N 230Vac

12V (taken September 18th 2025):

54V:

Schematic Num	Tested Part	Part Name	Breakdown Voltage (V)	SPEC (80%)	Vds @ 100Vac	Picture (100Vac)	Vds @ 264Vac	Picture (264Vac)	P/F
Q1, Q2	Q2	NCE65TF99F	650	520	498.958		473.9		P
Q4, Q5	Q5	NCE65TF130F	650	520	421.5		431.5		P
Q6, Q7, Q8, Q9	Q8	HYG025N06LS1P (IPP175N20NM6AKSA1)	60 (200)	48 (160)	120.1		120.0		P

- Full load

- Q6-Q9 is not the original HYG025N06LS1P mosfet, we accidently blew those up, so we ordered the Infineon IPP175N20NM6AKSA1 mosfets

Schematic Label	Part Name	Breakdown Voltage (V)	SPEC (80%)	Vds @ 100Vac	Picture	Vds @ 264Vac	Picture
Q1, Q2	NCE65TF99F	650	520
Q4, Q5	NCE65TF130F	650	520
Q6, Q7, Q8, Q9	HYG025N06LS1P	60	48

GTSZ

12V

Spec (A)	Reading (A)	Result	Picture
6.5	6.128	PASS

24V

Spec (A)	Reading (A)	Result	Picture
6.5	6.056	PASS

12V

Voltage	Spec (A)	Reading (A)	Result	Picture
115Vac	35	14.4A	PASS
240Vac	70	44A	PASS

24V

Voltage	Spec (A)	Reading (A)	Result	Picture
115Vac	35	18A	PASS
240Vac	70	38.4A	PASS

GTSZ

---

24V, 115Vac, Average Efficiency = 92.102%

Parameter	100%	75%	50%	25%
Percent of Rated Load	100%	75%	50%	25%
True Power Factor (Watts/VA)	0.9992	0.9990	0.9987	0.9975
Efficiency	91.763%	92.566%	92.886%	91.193%

24V, 230Vac, Average Efficiency = 94.247%

Parameter	100%	75%	50%	25%
Percent of Rated Load	100%	75%	50%	25%
True Power Factor (Watts/VA)	0.9987	0.9967	0.9920	0.9819
Efficiency	94.652%	94.625%	94.415%	93.295%

---

12V, 115Vac, Average Efficiency = 91.907%

Parameter	100%	75%	50%	25%
Percent of Rated Load	100%	75%	50%	25%
True Power Factor (Watts/VA)	0.9985	0.9989	0.9988	0.9974
Efficiency	90.751%	91.875%	92.853%	92.151%

12V, 230Vac, Average Efficiency = 93.553%

Parameter	100%	75%	50%	25%
Percent of Rated Load	100%	75%	50%	25%
True Power Factor (Watts/VA)	0.9985	0.9960	0.9907	0.9760
Efficiency	93.438%	93.786%	94.010%	92.976%

YELLOW - PG Signal

PINK - Output Voltage

12V

Failure Mode	PICTURE	PG Time
OPP		9.5ms
AC Power Failure		11.8ms

OPP Load = 66A (144%)

75% load = 34.4 A

24V

Failure Mode	PICTURE	PG Time
OPP		9.7ms
AC Power Failure		12.2ms

OPP Load = 32A (139%)

75% load = 17.2 A

54V

Failure Mode	PICTURE	PG Time
OPP		9.7ms
AC Power Failure		12.4ms

OPP Load = 13A (128%)

75% load = 7.6 A

Add a 100nF cap in parallel with R28.

COMPONENT	Old Value	New Value
C24	--	100nF

RO state	LOW	HIGH
Output state	OFF	ON

i know this tests works, pulled RO low multiple times on all models, both on board and with external breakout board. We can mark this as resolved

12V

Fan Output	Standby Output	Standby Output Voltage (V)	Fan Output Voltage (V)
0%	0%	4.94	10.73
0%	100%	4.85	12.67
100%	0%	5.04	10.74
100%	100%	4.70	10.80
0%	0%	4.89	10.67
0%	100%	4.88	12.57
100%	0%	5.05	10.74
100%	100%	4.79	10.88
0%	0%	4.89	10.67
0%	100%	4.87	12.62
100%	0%	5.04	10.72
100%	100%	4.77	10.80
Max		5.05	12.67
Min		4.70	10.67
Dev + (%) [^1]		1.0%	5.6%
Dev - (%) [^2]		6.0%	11.1%
Spec (%) [^3]		±5%	±15%
Spec Range (V) [^4]		4.75 – 5.25	10.2 – 13.8

[^1]: Dev + (%) — Positive deviation from nominal: `((Max − Nominal) / Nominal) × 100`

[^2]: Dev - (%) — Negative deviation from nominal: `((Nominal − Min) / Nominal) × 100`

[^3]: Spec (%) — Allowable percentage deviation from nominal voltage (symmetric tolerance band).

[^4]: Spec Range (V) — Absolute voltage limits derived from the spec tolerance: `Nominal ± (Nominal × Spec %)`

[RESULT]

24V

Fan Output	Standby Output	Standby Output Voltage (V)	Fan Output Voltage (V)
0%	0%	4.93	10.90
0%	100%	4.85	12.66
100%	0%	5.00	10.81
100%	100%	4.69	10.94
0%	0%	4.87	10.77
0%	100%	4.84	12.60
100%	0%	5.01	10.83
100%	100%	4.70	10.90
0%	0%	4.87	10.80
0%	100%	4.84	12.57
100%	0%	5.00	10.80
100%	100%	4.70	10.93
Max		5.01	12.66
Min		4.69	10.77
Dev + (%) [^1]		0.2%	5.5%
Dev - (%) [^2]		6.2%	10.3%
Spec (%) [^3]		5%	15%
Spec Range (V) [^4]		4.75 – 5.25	10.2 – 13.8

[^1]: Dev + (%) — Positive deviation from nominal: `((Max − Nominal) / Nominal) × 100`

[^2]: Dev - (%) — Negative deviation from nominal: `((Nominal − Min) / Nominal) × 100`

[^3]: Spec (%) — Allowable percentage deviation from nominal voltage (symmetric tolerance band).

[^4]: Spec Range (V) — Absolute voltage limits derived from the spec tolerance: `Nominal ± (Nominal × Spec %)`

54V

Fan Output	Standby Output	Standby Output Voltage (V)	Fan Output Voltage (V)
0%	0%	4.97	10.76
0%	100%	5.06	10.73
100%	0%	4.74	12.64
100%	100%	4.60	10.85
0%	0%	4.90	10.68
0%	100%	5.08	10.76
100%	0%	4.77	12.54
100%	100%	4.63	10.86
0%	0%	4.92	10.70
0%	100%	5.06	10.73
100%	0%	4.76	12.57
100%	100%	4.62	10.84
Max		5.08	12.64
Min		4.60	10.68
Dev + (%) [^1]		1.6%	5.3%
Dev - (%) [^2]		8.0%	11.0%
Spec (%) [^3]		5%	15%
Spec Range (V) [^4]		4.75 – 5.25	10.2 – 13.8

[^1]: Dev + (%) — Positive deviation from nominal: `((Max − Nominal) / Nominal) × 100`

[^2]: Dev - (%) — Negative deviation from nominal: `((Nominal − Min) / Nominal) × 100`

[^3]: Spec (%) — Allowable percentage deviation from nominal voltage (symmetric tolerance band).

[^4]: Spec Range (V) — Absolute voltage limits derived from the spec tolerance: `Nominal ± (Nominal × Spec %)`

For 12V unit, the voltages could probably be raised because there is more headroom and fails at minus deviation at standby output (5V). Will test other voltage units shortly.

[ISSUE]

Summary

After testing all the units, it is clear that all of the 5V standby outputs have a lower voltage deviation at full load than what the spec says (5%). R63 and R64 control the voltage the supply will regulate due to the CR6267's cable drop compensation scheme.

The results below are inconclusive to what the new values should be. In the first case, the expected result was that it would center the regulated output voltage around 5V better and keep the same total voltage deviation. Instead, the total deviation was greater than the original, it was more centered around 5V and 5% deviation, but technically more deviation than the original values.

As of now we are leaving the issue and moving on to other things, we are keeping the orignal 13.7kOhm and 2kOhm resistors that were in the schematic originally.

Other Things:

- Checking four corners may not be enough to show most deviation in output voltage

- If this issue is a big enough problem we will either have to change the spec or change the winding on the aux transformer; bifilar winding of aux and primary windings?

-

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R64 = 1.8kΩ — R63 = 12.8kΩ

Condition

StndBy (5V) Load (%)

Fan (12V) Load (%)

StndBy (5V) Voltage (V)

Fan (12V) Voltage (V)

(115Vac)

0%

0%

5.17

11.2

50% load attatched

0%

100%

5.26

11.18

to main output

100%

0%

4.93

13.1

 

100%

100%

4.75

11.27

Spec Range (V)

 

 

4.75 - 5.25

10.2 - 13.8

 

 

 

4.75

11.18

MAX

 

 

5.26

13.1

Dev- (%)

 

 

5.

6.8333333

 

 

 

5.2

9.1666667

Spec (%)

 

 

5%

15%

R64 = 2kΩ — R63 = 14.2kΩ

Condition

StndBy (5V) Load (%)

Fan (12V) Load (%)

StndBy (5V) Voltage (V)

Fan (12V) Voltage (V)

(115Vac)

0%

0%

4.97

10.76

50% load attatched

0%

100%

5.06

10.73

to main output

100%

0%

4.74

12.64

 

100%

100%

4.60

10.85

Spec Range (V)

 

 

4.75 - 5.25

10.2 - 13.8

MIN

 

 

4.6

10.73

MAX

 

 

5.06

12.64

Dev- (%)

 

 

8.

10.583333

Dev+ (%)

 

 

1.2

5.3333333

Spec (%)

 

 

5%

15%

R64 = 2.2kΩ — R63 = 15.6kΩ

R63 = (2.4kΩ		3x + 15kΩ)

R64 = 1kΩ + 100Ω + 100Ω

Condition

StndBy (5V) Load (%)

Fan (12V) Load (%)

StndBy (5V) Voltage (V)

Fan (12V) Voltage (V)

(115Vac)

0%

0%

5.08

11.02

50% load attatched

0%

100%

5.2

11.05

to main output

100%

0%

4.8

12.89

 

100%

100%

4.68

11.18

Spec Range (V)

 

 

4.75 - 5.25

10.2 - 13.8

MIN

 

 

4.68

11.02

MAX

 

 

5.2

12.89

Dev- (%)

 

 

6.4

8.1666667

Dev+ (%)

 

 

4.

7.4166667

Spec (%)

 

 

5%

15%

R64 = 2.2kΩ — R63 = 15.6kΩ — Rs = 1.2Ω instead of 0.6Ω

R63 = (2.4kΩ		3x + 15kΩ)

R64 = 1kΩ + 100Ω + 100Ω

Condition

StndBy (5V) Load (%)

Fan (12V) Load (%)

StndBy (5V) Voltage (V)

Fan (12V) Voltage (V)

Notes

(115Vac)

0%

0%

5.1

11.04

 

50% load attatched

0%

100%

5.4

11.5

 

to main output

100%

0%

4.68

13.24

 

 

100%

100%

N/A

N/A

* could not hold 100% load on both outputs at the same time

12V

Test Voltage	Test Conditions	Leakage Current (uA)	SPEC	Test Result
100Vac	Normal Condition	53	Normal Condition (＜1mA/264VAC)	PASS
	SFC	105		PASS
264Vac	Normal Condition	173	Fault Condition (SFC) (＜1mA/264VAC)	PASS
	SFC	328		PASS

24V

Test Voltage	Test Conditions	Leakage Current (uA)	SPEC	Test Result
100Vac	Normal Condition	44	Normal Condition (＜1mA/264VAC)	PASS
	SFC	94		PASS
264Vac	Normal Condition	152	Fault Condition (SFC) (＜1mA/264VAC)	PASS
	SFC	304		PASS

12V @ 45 A

Grounding configuration F4:

Condition	S1 (Neutral)	S5 (Phase Reversal)	S7 (Earth)	Spec (uA)	Measured current (uA)	PASS/FAIL
N.C.	1	N	0	250	163.8	PASS
N.C.	1	R	0	250	166.1	PASS
S.F.C. (Open Neutral)	0	N	0	500	368.9	PASS
S.F.C. (Open Neutral)	0	R	0	500	361.6	PASS

Grounding configuration E1

Condition	S1 (Neutral)	S5 (Phase Reversal)	S7 (Earth)	Spec (uA)	Measured current (uA)	PASS/FAIL
N.C.	1	N	0	300	176.4	PASS
N.C.	1	R	0	300	179.1	PASS
S.F.C. (Open Neutral)	0	N	0	600	386.4	PASS
S.F.C. (Open Neutral)	0	R	0	600	386.4	PASS

24V @ 22.9 A

Grounding configuration F4:

Condition	S1 (Neutral)	S5 (Phase Reversal)	S7 (Earth)	Spec (uA)	Measured current (uA)	PASS/FAIL
N.C.	1	N	0	250	173.1	PASS
N.C.	1	R	0	250	169	PASS
S.F.C. (Open Neutral)	0	N	0	500	385.6	PASS
S.F.C. (Open Neutral)	0	R	0	500	385.9	PASS

Grounding configuration E1

Condition	S1 (Neutral)	S5 (Phase Reversal)	S7 (Earth)	Spec (uA)	Measured current (uA)	PASS/FAIL
N.C.	1	N	0	250	196	PASS
N.C.	1	R	0	250	191.5	PASS
S.F.C. (Open Neutral)	0	N	0	500	426	PASS
S.F.C. (Open Neutral)	0	R	0	500	425.7	PASS

@Vision314

Can you make sure the associated spec for for each condition lines up with the test condition?

I mean:

First line: Test Condition: Normal Condition; SPEC: Normal Condition --> Good

Third line: Test Condition: Normal Condition; SPEC: Fault Condition --> Mismatch

I'd put four specs, one for each line.

Also, this is under 54V. I will change to Model level if we are going to put all data under one umbrella.

@Vision314 Added spec in header. It's not clear whether SFC or NC was tested at GTSZ; one is missing. Maybe we test here to show you how.

[RESULT}

54V @ 9.7 A

Grounding configuration F4:

Condition	S1 (Neutral)	S5 (Phase Reversal)	S7 (Earth)	Spec (uA)	Measured current (uA)	PASS/FAIL
N.C.	1	N	0	250	163.3	PASS
N.C.	1	R	0	250	170.7	PASS
S.F.C. (Open Neutral)	0	N	0	500	374.2	PASS
S.F.C. (Open Neutral)	0	R	0	500	374	PASS

Grounding configuration E1

Condition	S1 (Neutral)	S5 (Phase Reversal)	S7 (Earth)	Spec (uA)	Measured current (uA)	PASS/FAIL
N.C.	1	N	0	250	181.8	PASS
N.C.	1	R	0	250	189.3	PASS
S.F.C. (Open Neutral)	0	N	0	500	407.3	PASS
S.F.C. (Open Neutral)	0	R	0	500	407	PASS