Troubleshooting Power Supplies and Power Supply Design

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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 580,636 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 1,334,206 views 0 reactions	Last Post by japlytic 09-14-2024, 07:04 PM
Sticky: List of pin compatible pwm/supervisor PSU ICs by Quaddro Started by Quaddro, 12-06-2019, 02:54 AM	18 responses 12,057 views 0 reactions	Last Post by tartuf 01-17-2023, 06:36 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 7,364 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 124,671 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 68,846 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 220,631 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 433,991 views 0 reactions	Last Post by jvyt 06-25-2009, 01:40 AM
How Can I test PWM DM0365R? by chth96 Started by chth96, Yesterday, 04:14 PM	3 responses 33 views 0 reactions	Last Post by stj Today, 02:45 AM
Optiplex power supply dead by Luke Mawdesley Started by Luke Mawdesley, 04-16-2025, 03:36 PM	38 responses 271 views 0 reactions	Last Post by stj 06-13-2025, 04:29 AM
Artesyn 3T12AP DC to DC regulator by rtstorm Started by rtstorm, 05-27-2025, 04:12 PM	24 responses 427 views 0 reactions	Last Post by stj 06-13-2025, 04:26 AM
Help needed identify Diode - PSU FSP Hexa 500W by spintop Started by spintop, 06-14-2019, 08:59 PM	7 responses 1,599 views 0 reactions	Last Post by ChanHa 06-07-2025, 04:19 PM
dl-p2507fwp rev:H01 schematic by Mediatechy Started by Mediatechy, 06-04-2025, 05:27 AM	1 response 35 views 0 reactions	Last Post by momaka 06-07-2025, 10:01 AM
test active pfc power with lamp test by khelane Started by khelane, 06-03-2025, 01:00 AM	7 responses 77 views 0 reactions	Last Post by momaka 06-07-2025, 09:39 AM
PILZ PNOZ X4 Safety Relay by fadi90 Started by fadi90, 06-07-2025, 01:21 AM	1 response 30 views 0 reactions	Last Post by Per Hansson 06-07-2025, 06:34 AM
Teami Skincare Fridge TM10L power board goes kablooey by lkvee Started by lkvee, 06-02-2025, 11:09 AM	2 responses 30 views 0 reactions	Last Post by CapLeaker 06-04-2025, 04:26 AM
Behringer F1320D Floor Monitor (300W) by welldigger99 Started by welldigger99, 05-14-2025, 09:47 AM	11 responses 170 views 0 reactions	Last Post by Agent24 06-01-2025, 01:17 AM
What Zener Diodes on a Linear Power Supply by caspian Started by caspian, 05-26-2025, 12:38 PM	4 responses 56 views 0 reactions	Last Post by caspian 05-27-2025, 01:45 AM
HP Z800 1250w PSU not powering on by m_12adel Started by m_12adel, 04-13-2023, 02:59 PM	4 responses 1,079 views 0 reactions	Last Post by CapLeaker 05-23-2025, 07:50 PM
Samsung SMPS BN44-00339A by Loretto Started by Loretto, 03-29-2025, 08:30 AM	1 response 114 views 0 reactions	Last Post by Loretto 05-22-2025, 09:18 AM
APC BE650G2-UK surge strip UPS - not powering? by spleenharvester Started by spleenharvester, 05-19-2025, 05:15 AM	6 responses 43 views 0 reactions	Last Post by CapLeaker 05-20-2025, 03:54 PM
Testing ATX PSUs under load - Does loading the ATX 24 pin also load EPS & PCIE? by AJ847.63e Started by AJ847.63e, 05-06-2025, 10:37 PM	5 responses 91 views 0 reactions	Last Post by AJ847.63e 05-18-2025, 07:30 PM
PC Power Supply with shorted 3.3V by Askic Started by Askic, 05-07-2025, 05:30 AM	9 responses 151 views 0 reactions	Last Post by jonnyGURU 05-16-2025, 09:00 PM
Lenovo ThinkVision P40w-20 no power – ILPI-422 VA board repair help by Habble7 Started by Habble7, 05-15-2025, 02:38 AM	6 responses 97 views 0 reactions	Last Post by CapLeaker 05-16-2025, 10:15 AM
Diagram for PS4 FAT CUH-1116A power supply by fab13 Started by fab13, 11-05-2022, 06:35 PM	3 responses 3,325 views 0 reactions	Last Post by Saydi Alghifari 05-16-2025, 08:22 AM
0 Ohm ESR ?? - Testing cap in PSU by aneng Started by aneng, 04-29-2021, 03:06 AM	10 responses 3,105 views 0 reactions	Last Post by kaypdss 05-15-2025, 08:40 AM
Huntkey model: Hkf1502-3b by EonFlask Started by EonFlask, 08-14-2023, 08:10 AM	2 responses 2,406 views 0 reactions	Last Post by canali 05-14-2025, 02:38 AM
POWER SUPPLY BN44-01056A Power fluctuation ON MAIN CAPACITOR by bohaboha Started by bohaboha, 04-16-2025, 07:05 AM	22 responses 240 views 0 reactions	Last Post by bohaboha 05-08-2025, 10:17 AM
Inverter Charger architecture question by SoulFreeze Started by SoulFreeze, 05-07-2025, 09:53 AM	1 response 44 views 0 reactions	Last Post by SoulFreeze 05-07-2025, 03:36 PM
Ego 56v Battery Charger Failure by !sense Started by !sense, 03-03-2022, 10:16 AM	3 responses 1,230 views 0 reactions	Last Post by Israelx7 05-06-2025, 04:37 AM
LED DRIVER KEEPS DYING by osrex Started by osrex, 05-05-2025, 03:36 PM	1 response 52 views 0 reactions	Last Post by CapLeaker 05-05-2025, 04:58 PM
How to test laptop AC adapter by CapSnap123 Started by CapSnap123, 05-01-2025, 01:59 PM	5 responses 65 views 0 reactions	Last Post by stj 05-02-2025, 01:41 AM
Help finding datasheet for component marked G34662 by SoulFreeze Started by SoulFreeze, 05-01-2025, 03:56 AM	2 responses 40 views 0 reactions	Last Post by SoulFreeze 05-01-2025, 08:37 PM
APC Smart-UPS 3000 XL (SUA3000XLI) not reading voltages well by camisao Started by camisao, 04-03-2025, 07:12 AM	3 responses 104 views 0 reactions	Last Post by camisao 04-30-2025, 03:44 PM
Samsug washing machine. Power supply DC41-00189a board issue by Soulzink Started by Soulzink, 04-19-2025, 06:26 AM	17 responses 304 views 0 reactions	Last Post by CapLeaker 04-29-2025, 01:26 PM
Corsair RM1000e - Help identify 5VSB Zener diode by hobostove Started by hobostove, 03-27-2025, 02:25 PM	48 responses 583 views 0 reactions	Last Post by c1q3 04-27-2025, 06:08 AM
Quick Nautical Equipment - SBC 500 FR ADV PLUS - Shorted Output Error E1 by sententia Started by sententia, 06-08-2016, 10:21 AM	20 responses 17,207 views 0 reactions	Last Post by majkstone 04-26-2025, 04:52 AM
Antec NEO HE550 Caps replacement by Bogey Started by Bogey, 03-04-2015, 05:09 AM	29 responses 8,184 views 0 reactions	Last Post by Bogey 04-26-2025, 01:45 AM
Unknown transformer : how to find a good replacement part ? by the_rem Started by the_rem, 04-23-2025, 01:48 AM	1 response 62 views 0 reactions	Last Post by Per Hansson 04-25-2025, 08:15 AM
Computer SMPS has voltages from a moment and then disapear by Francesc V. Started by Francesc V., 04-15-2025, 01:54 PM	11 responses 176 views 0 reactions	Last Post by Francesc V. 04-24-2025, 05:20 AM
CURTIS CONTROLLER 1264-5403 by Éric Noiseux Started by Éric Noiseux, 04-21-2025, 04:54 PM	3 responses 56 views 0 reactions	Last Post by Éric Noiseux 04-22-2025, 07:03 AM
Tritan 09110-01214- SMPS without controller by s_henya Started by s_henya, 04-17-2025, 09:27 AM	2 responses 44 views 0 reactions	Last Post by s_henya 04-18-2025, 06:57 AM
Tefal GV8962 Pro Express steam iron - no power by beetle1303 Started by beetle1303, 10-22-2020, 04:34 AM	69 responses 10,379 views 0 reactions	Last Post by Wim Smits 04-14-2025, 12:19 PM
Power supply Manson NTP-5561 (5661) LCD controller dead - PIC18F87K90 HEX dump required by Andreas_de Started by Andreas_de, 04-12-2025, 10:38 AM	0 responses 39 views 0 reactions	Last Post by Andreas_de 04-12-2025, 10:38 AM
Argon SA1 audio amplifier power-supply - fuse blown after fixing the short? by Babbar Started by Babbar, 04-12-2024, 01:12 AM	16 responses 539 views 0 reactions	Last Post by markeye 04-10-2025, 05:38 AM
psu ac240es-01 from dell Optiplex by MegaZAC Started by MegaZAC, 01-26-2024, 12:04 AM	22 responses 726 views 0 reactions	Last Post by MegaZAC 04-09-2025, 05:18 PM
Hanmatek HM310T bench PSU - schematics wanted by Dangerousk Started by Dangerousk, 05-14-2024, 12:07 PM	8 responses 428 views 0 reactions	Last Post by stj 04-07-2025, 01:36 PM
Compaq PDP-124P - loud screeching when running by kotel studios Started by kotel studios, 03-25-2025, 11:58 AM	16 responses 116 views 0 reactions	Last Post by stj 03-28-2025, 10:59 AM

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