Troubleshooting Power Supplies and Power Supply Design

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Sticky: List of pin compatible pwm/supervisor PSU ICs by Quaddro Started by Quaddro, 12-06-2019, 02:54 AM	19 responses 12,595 views 0 reactions	Last Post by protocold 10-29-2025, 09:12 PM
Sticky: the gutless, bloated, and fried power supply hall of shame by ratdude747 Started by ratdude747, 12-18-2009, 05:18 AM	1,759 responses 590,321 views 0 reactions	Last Post by PeteS in CA 09-16-2024, 04:31 PM
Sticky: Power supply build quality pictorial. part 2 by kc8adu Started by kc8adu, 06-29-2009, 01:23 PM	3,227 responses 1,390,634 views 0 reactions	Last Post by japlytic 09-14-2024, 07:04 PM
Sticky: WARNING: Live heatsinks & single pole on/off switches in switching power supplies by Per Hansson Started by Per Hansson, 06-09-2021, 12:01 PM	6 responses 7,522 views 0 reactions	Last Post by RJARRRPCGP 12-29-2021, 12:12 AM
Sticky: The PSU FAQ by PeteS in CA Started by PeteS in CA, 08-28-2005, 04:29 PM	55 responses 124,920 views 0 reactions	Last Post by bianchi77 08-31-2016, 11:54 PM
Sticky: General PSU Discussion and FAQ contributions by PeteS in CA Started by PeteS in CA, 08-28-2005, 04:29 PM	20 responses 69,015 views 0 reactions	Last Post by moe2020 10-04-2015, 12:04 AM
Sticky: Power supply build quality pictorial DISCUSSION by dood Started by dood, 12-21-2005, 03:39 PM	353 responses 221,124 views 0 reactions	Last Post by momaka 06-19-2014, 12:52 PM
Closed, Sticky: Power supply build quality pictorial.closed.use part 2 by dood Started by dood, 12-21-2005, 03:39 PM	410 responses 435,366 views 0 reactions	Last Post by jvyt 06-25-2009, 01:40 AM
MasterVolt IVO 12/25-3 Marine charger - replaced power fet but now pulsating by sententia Started by sententia, 08-06-2015, 12:48 PM	47 responses 9,183 views 0 reactions	Last Post by sententia 04-02-2018, 03:57 PM
APC Smart-UPS 1100 Not working flashing Green and Yellow LED'd by band Started by band, 03-08-2018, 01:18 PM	4 responses 1,534 views 0 reactions	Last Post by band 04-02-2018, 03:16 PM
"Sima" brand 325W inverter... works currently but... by eccerr0r Started by eccerr0r, 03-24-2018, 10:58 AM	6 responses 1,459 views 0 reactions	Last Post by eccerr0r 03-28-2018, 03:09 AM
Power adapter from Apple Time Capsule - 0V at output by andrey_ka Started by andrey_ka, 02-22-2014, 01:56 PM	30 responses 7,233 views 0 reactions	Last Post by andrey_ka 03-27-2018, 12:44 PM
Corsair 400W PSU w/one bad cap by Mac29 Started by Mac29, 03-17-2018, 12:19 PM	6 responses 1,629 views 0 reactions	Last Post by Stefan Payne 03-19-2018, 10:53 AM
Dead Dell power supply by everell Started by everell, 12-08-2017, 03:45 AM	9 responses 3,199 views 0 reactions	Last Post by drhicom 03-18-2018, 09:07 AM
Toshiba TV low voltage on PSU by DjKrish Started by DjKrish, 02-28-2018, 04:50 AM	19 responses 2,274 views 0 reactions	Last Post by DjKrish 03-14-2018, 06:27 AM
overvoltage to a circuit board lamp by Cornboats Started by Cornboats, 02-27-2018, 03:35 AM	72 responses 6,184 views 0 reactions	Last Post by Cornboats 03-14-2018, 04:14 AM
What could make a high pitched whine a PSU? by Spork Schivago Started by Spork Schivago, 03-12-2018, 06:56 PM	5 responses 1,514 views 0 reactions	Last Post by Spork Schivago 03-13-2018, 01:36 PM
some dead capacitors in a 9v 2.6A power supply by RukyCon Started by RukyCon, 03-03-2017, 03:59 AM	65 responses 9,821 views 0 reactions	Last Post by RukyCon 03-12-2018, 07:56 AM
Cooler Master RS-500-ACAB-M3 by ciki022 Started by ciki022, 03-10-2018, 05:00 PM	2 responses 1,717 views 0 reactions	Last Post by MHTSOS 03-11-2018, 01:35 AM
Liteon PA-3241-02A1 by piernov Started by piernov, 03-06-2018, 02:29 PM	2 responses 1,669 views 0 reactions	Last Post by CapLeaker 03-07-2018, 08:24 PM
Weirdest power problem by DjKrish Started by DjKrish, 02-23-2018, 04:42 AM	16 responses 2,147 views 0 reactions	Last Post by Dan81 03-06-2018, 11:21 PM
My popped bench PSU. by roadrash Started by roadrash, 02-15-2018, 03:57 PM	33 responses 3,516 views 0 reactions	Last Post by eccerr0r 03-06-2018, 05:13 PM
Running a 24V vacuum cleaner from 19V only works sometimes - why? by nuhega Started by nuhega, 02-24-2018, 04:50 PM	10 responses 2,278 views 0 reactions	Last Post by nuhega 03-02-2018, 11:53 AM
A bit of help with this Delta for HP PSU (DPS-575AB) by Adrian_ Started by Adrian_, 02-25-2018, 09:57 AM	11 responses 2,186 views 0 reactions	Last Post by momaka 03-01-2018, 11:31 PM
VRM Caps? That is a Power Supply right? by SkOrPn Started by SkOrPn, 02-22-2018, 04:26 PM	6 responses 1,739 views 0 reactions	Last Post by Stefan Payne 03-01-2018, 09:13 PM
Worn ATX PSU still works but with reduced power peak by davidebaldini Started by davidebaldini, 02-24-2018, 03:41 PM	8 responses 1,902 views 0 reactions	Last Post by momaka 02-28-2018, 11:53 PM
The T&P power supply thread by goodpsusearch Started by goodpsusearch, 01-05-2018, 12:38 PM	9 responses 2,588 views 0 reactions	Last Post by goodpsusearch 02-27-2018, 08:03 AM
Weird issue with parallel Li Ion (need help with board design!) by audiomodder Started by audiomodder, 02-05-2018, 01:52 AM	9 responses 1,879 views 0 reactions	Last Post by kc8adu 02-25-2018, 06:55 AM
homemade bench PSUs by eccerr0r Started by eccerr0r, 02-22-2018, 02:03 PM	2 responses 1,157 views 0 reactions	Last Post by eccerr0r 02-24-2018, 03:32 AM
Help identifying blown component in Dell PSU. by roadrash Started by roadrash, 08-19-2017, 01:23 PM	48 responses 5,975 views 0 reactions	Last Post by momaka 02-21-2018, 04:41 PM
Repairing Fortron Epsilon 600W by Brainless Started by Brainless, 02-06-2018, 11:11 AM	8 responses 1,976 views 0 reactions	Last Post by jarvis7 02-20-2018, 04:17 PM
Removing PFC from PPFC PSU? by Dan81 Started by Dan81, 02-13-2018, 12:23 PM	9 responses 2,129 views 0 reactions	Last Post by Dan81 02-15-2018, 10:43 AM
SCR "switching" PSUs by eccerr0r Started by eccerr0r, 02-12-2014, 09:39 AM	8 responses 2,939 views 0 reactions	Last Post by PeteS in CA 02-12-2018, 03:50 PM
Replacement Rifa caps for Astec PSU by Osmosis Started by Osmosis, 02-09-2018, 05:00 PM	9 responses 3,199 views 0 reactions	Last Post by PeteS in CA 02-12-2018, 03:45 PM
150d bench power supply ammeter not working by Dannyx Started by Dannyx, 01-31-2018, 12:55 PM	41 responses 4,798 views 0 reactions	Last Post by budm 02-12-2018, 10:52 AM
Sony Vaio AC adaptor quality by goodpsusearch Started by goodpsusearch, 11-15-2015, 09:41 AM	11 responses 3,038 views 0 reactions	Last Post by Artifed 02-12-2018, 10:32 AM
Fsp250-60hen by stj Started by stj, 05-23-2010, 07:32 AM	44 responses 25,532 views 0 reactions	Last Post by goodpsusearch 02-10-2018, 12:16 PM
Thermaltake TR2-420 blown! by goodpsusearch Started by goodpsusearch, 05-24-2015, 03:30 PM	23 responses 5,579 views 0 reactions	Last Post by momaka 02-09-2018, 01:34 PM
Repaired laptop charger , is it safe to use ? - General query by jarvis7 Started by jarvis7, 07-16-2017, 09:45 AM	31 responses 5,536 views 0 reactions	Last Post by jarvis7 02-08-2018, 03:24 PM
DELL INSPIRON 5558 not working on battery power by Igy254 Started by Igy254, 02-06-2018, 04:34 AM	0 responses 1,105 views 0 reactions	Last Post by Igy254 02-06-2018, 04:34 AM
ADi T8053 LCD Color Terminal - PSU output high at startup by Agent24 Started by Agent24, 12-11-2009, 02:45 AM	34 responses 8,052 views 0 reactions	Last Post by Agent24 02-06-2018, 01:11 AM
Linkworld(?) LPJ19-25E by bauto601 Started by bauto601, 05-28-2015, 06:15 AM	30 responses 8,168 views 0 reactions	Last Post by Th3_uN1Qu3 02-06-2018, 12:23 AM
*&^%ing wall-warts by smason Started by smason, 06-28-2011, 09:03 PM	4 responses 3,284 views 0 reactions	Last Post by clearchris 02-05-2018, 12:00 PM
Samsung DLP primaries...in series? by Uranium-235 Started by Uranium-235, 01-30-2018, 09:08 PM	9 responses 1,734 views 0 reactions	Last Post by jazzie366 02-05-2018, 03:30 AM
Turning laptop PSU into a bench supply by spleenharvester Started by spleenharvester, 01-16-2018, 05:01 PM	6 responses 1,833 views 0 reactions	Last Post by BrickBreaker 02-01-2018, 11:17 AM
Suspected psu problem on 1570 disk drive by roadrash Started by roadrash, 01-20-2018, 05:18 PM	12 responses 1,953 views 0 reactions	Last Post by roadrash 02-01-2018, 10:10 AM
Makita charger flyback controller identification by nightmechanic Started by nightmechanic, 02-01-2018, 01:50 AM	0 responses 1,096 views 0 reactions	Last Post by nightmechanic 02-01-2018, 01:50 AM
PSU Compatibility Question by bigbeark Started by bigbeark, 01-24-2018, 11:13 PM	2 responses 1,335 views 0 reactions	Last Post by momaka 01-29-2018, 12:09 AM

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