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Chinese power supply troubleshooting (2)

Technical Repair 4 days ago at 05:46 PM

Last message by Audioguru again on March 17, 2023 at 06:07 PM

7 Replies
78 Views
AC and DC regenerative electronic load

Power Electronics About 6 days ago at 07:04 AM

Last message by morrademedo on March 16, 2023 at 05:37 AM

18 Replies
155 Views
16 Replies
181 Views
smps fault finding

Technical Repair 2 weeks ago at 03:07 PM

Last message by Juhahoo on March 10, 2023 at 12:21 AM

30 Replies
352 Views
UPS design

General Electronics Chat About 2 months ago at 02:21 PM

Last message by PsySc0rpi0n on March 3, 2023 at 02:41 PM

42 Replies
611 Views
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Powering a 1700W microwave using a Nissan Leaf

Power Electronics 2 months ago at 03:40 PM

Last message by MisterBill2 on February 24, 2023 at 04:34 AM

20 Replies
835 Views
Switch Mode Power Supply (SMPS) Repair - Low output voltages whilst under load.

Technical Repair 3 months ago at 07:22 AM

Last message by Dodgydave on February 23, 2023 at 07:55 AM

11 Replies
456 Views
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Automatic selection from three 12v (DC) sources

General Electronics Chat One month ago at 04:41 PM

Last message by bassbindevil on February 5, 2023 at 11:43 PM

18 Replies
171 Views
DC Power Supply Noise elimination for Electret Microphone

Analog & Mixed-Signal Design About 4 months ago at 11:14 AM

Last message by rpschultz on February 2, 2023 at 05:54 PM

66 Replies
1438 Views
Frequency meter with MAX22707 - short circuit between digital GND and Neutral

Power Electronics One month ago at 10:00 AM

Last message by Ian0 on February 2, 2023 at 12:09 PM

7 Replies
354 Views
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Clarification on how to wire 12v PIR (3 wire) motion sensor?

Sensor Design & Implementation One month ago at 05:27 PM

Last message by bidrohini on February 2, 2023 at 04:38 AM

13 Replies
188 Views
22 Replies
448 Views
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Looking for feedback on a 120V AC motor control circuit

Power Electronics 2 months ago at 03:12 PM

Last message by tidnull on January 13, 2023 at 05:23 PM

9 Replies
371 Views
M
Possible to parallel 2 UPS's?

General Electronics Chat 2 months ago at 05:03 PM

Last message by MisterBill2 on January 12, 2023 at 03:02 PM

13 Replies
255 Views
DC-DC Power supply Inductor is very hot

Power Electronics 2 months ago at 06:27 PM

Last message by Janis59 on January 12, 2023 at 08:32 AM

25 Replies
589 Views
What am I doing wrong with the lm317?

Power Electronics 2 months ago at 05:56 PM

Last message by DickCappels on January 9, 2023 at 09:55 AM

16 Replies
509 Views
4 Replies
193 Views
M
Powering 2 5V devices from USB charger cube (newbee)

General Electronics Chat 3 months ago at 08:31 AM

Last message by MisterBill2 on December 19, 2022 at 07:35 AM

7 Replies
291 Views
Power supply only putting out single voltage (24v) - has dual output 12v & 24v

Technical Repair About 5 months ago at 05:58 PM

Last message by born2fly on December 16, 2022 at 12:44 PM

7 Replies
305 Views
M
12V spike suppression

General Electronics Chat 3 months ago at 12:06 AM

Last message by MisterBill2 on December 14, 2022 at 05:52 AM

13 Replies
409 Views