View Full Version : Power Supplies

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  1. Fuse and Diode blown on switch off
  2. Repurpose an X-BoSoZ PSU
  3. Pure USB powersupply
  4. anyone relocate an onboard 120/220 voltage selector switch?
  5. Xpiq ECM40USxx
  6. non feed-back emitter follower reg
  7. A very trivial way to check power supplies noise.
  8. Battery power amp has virtual earth point(+13v?). bi ampable with mains grounded amp?
  9. Bipolar cap as local decoupling ?
  10. multi-feed pwm 12-24v adjustable bench supply controller.
  11. Identifying AC mains smd devices (possibly PTCs)
  12. Apex A-class PSU problem
  13. JFET RIAA Phono power supply - which batteries are best?
  14. Charging 8 AA Batteries in Boombox?
  15. Slowblow fuse burns after power's been removed
  16. Where to find power supply or transformer ?
  17. LT1084 based power supply for NAS digital streaming
  18. Combine different sized rectifier caps?
  19. Toroid Primaries Question
  20. Bypass Caps
  21. Amps from China VS Crown Refence1
  22. simple tl431 regulation
  23. Pi filter for a 12V DC supply
  24. UK supplier of R or C core transformers?
  25. lm723 variable supply schematic question
  26. HQ low noise 5Vdc 2A PSU, kit or ready made?
  27. dual power supply noise issue
  28. AnTek Toroid Grounding
  29. 220 -> 2x50V whit IR2153 and PCB
  30. Interested in ADM7151 regulator?
  31. Multiple amp modules powered by one or two PS
  32. Question about electrical shock
  33. unused secondaries
  34. transformers and noise
  35. Interesting power supply module on Kickstarter
  36. transformer identification. need help.
  37. Paul Hynes power supplies nobody does it better
  38. GreenForce power supply
  39. Recommendations for a quality 'Off the Shelf' SMPS
  40. Filtering of HF content
  41. 0 on input VAC
  42. Electrolytic capacitors physical size
  43. Tascam M-2600 Power Supply Problem
  44. Laptop power supply 4 pole/ 4 pin plug and socket
  45. Problem with Jung regulator
  46. Switching Power Supply Safety & Mounting?
  47. variable voltage input=output inverter
  48. Local PS bypass caps.. are these good for audio?
  49. Can't we make SMPS simpler?
  50. Anyone Own a Diamond Audio D3 1000.1 amplifier?????
  51. Using the LM117K Adjustable Regulator
  52. Learning how to BUCK DC-DC
  53. Lepai LP-2020A+ amp with Anker Battery Supply
  54. Breaking my head over AC+DC heater reference
  55. diy power inverter
  56. Flyback SMPS question.
  57. Pi filters
  58. Center Tap VDC and -VDC and still use the 48VDC phantom power without doubler?
  59. Filter Choke Question
  60. Mounting toroidal transformers without proper monuting kit
  61. Constant voltage / constant current transformers
  62. Power smps for welding.
  63. help to make a simple psu for my LM3886
  64. TL431 High Voltage Regulator - How to get it thermally stable?
  65. ultra low noise like 50uV from the psu for 80V 15A possibility?
  66. Tl431, MOSFET shunt voltage regulator
  67. Linear PSU's in Parallel?
  68. regulated supply oscillation or whatever that is
  69. Series Pass Regulators driven by 3-terminal regulators
  70. Cunning Virtual Ground Circuit...
  71. Help identifying a PS
  72. Make your Printed Circuit Board (PCB):
  73. help id
  74. Which Resistor is the OPTIMAL Choice for Earthing/Grounding yourself ?
  75. 4.4VA 56VCT transformer powering more than I think it should (and not sagging)
  76. Voltage Tripler for Bias Tap
  77. Measuring power supplies - some results by Bjørn Kolbrek
  78. PSU transformer wiring help?
  79. ultra low noise PSU recommendations for VAS of the LME49830
  80. What would happen if ?
  81. Current capability of litz wire.
  82. Difference in +V/-V -- OK?
  83. help comparig & choosing between 1X230V or 2X150V transformers
  84. SMPS choice with 110/230v input
  85. A simple LT1763 based 5V PSU
  86. Zener Follower - what did i do wrong?
  87. LifePo BMS and audio quality
  88. Limiting resistor values
  89. Power transformer from Marantz SR2700?
  90. Transformer Help??????????????
  91. robbing from the positive rail
  92. LP-2020A+ power supply noise
  93. Anyone have the 3C6A ferrite material specification Sheet
  94. Power supply caps: They're not all equal
  95. Amp PS Building rookie questions
  96. How to check how dirty is the AC mains voltage
  97. Anyone here build power supplies as a service?
  98. Audible Illusions L1 Hissing Noise
  99. How to deal with Litz wire
  100. Parallel noise filters/traps for mains.
  101. milliamps, milliamps where do you go?
  102. Hooking up Power-One supply
  103. Question about tube amp supplies.
  104. ILP transformer va?
  105. How to knock the voltage down?
  106. decommissioned 3Par battery. help please?
  107. Help with 250V regulator
  108. Thoughts on running LED's from high voltage into a constant current sink.
  109. Control-to-Output or Open-Loop Measurement
  110. Bevois Mains Transformer
  111. Using off-the-shelf noname smps for gainclone/d-amp
  112. Noisy toroidal transformers
  113. Secondary wiring w/ 2 different windings
  114. Dc rail voltage increase on power Amplifer?
  115. NiMH Battery and charger, charge and run?
  116. 2kW Full Bridge SMPS Design
  117. 250Watt Class D Amplifier IRS2092S and IRFI4020H-117P
  118. Is it possible to use separate batteries for preamp and amp
  119. O-Audio Bash 500 psu schematics?
  120. Isolation transformer questions
  121. BASH amp from PSB Subsonic 5i, blown fuses
  122. current limiter power dissipation
  123. Buy used Pioneer A-400 then modify or buy brand new amp?
  124. grounding
  125. ebay dc booster
  126. I need a help about SG3525
  127. I need help ,SG3525 car amplifier smps
  128. Current regulator circuit for Bench Power Suppy
  129. Any pitfalls to running SMPS in series?
  130. parallel transformers
  131. LM317 over 37Volt ?
  132. Power supply for DIY 2.1 Kit
  133. Checking an old variac to see if it's safe to use.
  134. PS Filter
  135. Negative Power Supply
  136. Chaining power leads
  137. Home AC Voltage too High
  138. how to make cap6 inductors...?
  139. RC chains capacitor swap
  140. 3 Phase question
  141. Unregulated power supplies and noise
  142. Question on Building a separate power supply for F5TV3
  143. First PS problem switch on/off
  144. Comments on the a 350W Power Supply Build
  145. CheapoModo: quick and dirty transformer snubber bellringer jig
  146. Using Switching Converters in audio circuits
  147. Need some help?? Dont want to give up!!
  148. Recommended replacement for these bridge rectifiers
  149. Rectifier tube plate curve
  150. 12v battery draining
  151. First stereo amp build.
  152. LCD Repair, when not caps
  153. Newbie power question
  154. Power Supply Troubleshooting--No Voltage from Secondary Winding
  155. FR304 gets short circuit
  156. any benefit to this layout?
  157. resonant SMPS with Wurth WE-LLCR transformer
  158. transformer for F5TV3 question about Antek AN8234/ AN8434
  159. Question about Electrolytic Cap polarity
  160. Teac C-3X Pwr. Transformer Info. Needed
  161. Psım Full Bridge Feedback & Output Voltage Problem
  162. AUX PSU Check
  163. Surge protection - extension lead or MOV?
  164. 150Uh wanted on etd34
  165. Mystery Power Pop
  166. Transformers from technics SU-V8
  167. Current probe
  168. acoustic noise after transformer sort
  169. control two positive voltages with TL431CP
  170. series capacitors and bleeder resistors
  171. Soft Start Module Power Up
  172. Balanced DC output from a single 12v battery
  173. Powering a Car Amp for Home Use
  174. Can I use this supply
  175. Problem when powering heaters from +/- regs
  176. Soundcraft 400b
  177. Can I use this supply
  178. Analogue Metric Shunt Reg problem
  179. How much power can I get with IRFP460 PWM Full Brdige
  180. Transformer Windings
  181. Isolation transformer as power supply for tube amplifier
  182. Gapped power transformer as a choke
  183. Output Rectifier - Transformer Sound
  184. Power supply with transformer and batteries = fewer caps?
  185. Capacitor across diodes
  186. DC/DC converter for 12V/1A to 12V/2A
  187. Help for 500-600W 50V PS
  188. Clean switching of power MOS-FET
  189. Maida regulator ADJ bypass
  190. Need help with voltage regulator
  191. Why do I need regulator for small current?
  192. 100VAC Power Supply for Turntable?!
  193. Minimum power of transformator for SymAsym?
  194. Ripple vs Impedance D-C SET Questions.
  195. Time delay to slowly charge a capacitor bank
  196. LLC SMPS using PIC16f506
  197. Abletec, 900 Watt peak class D audio amplifier power supply +/- 53V DC
  198. Repair a Victron Multi Plus for safe power
  199. filter resistors location on a single capacitor PS
  200. Series Shunt regulated power supply??
  201. Strange Problem. Grounding issue?
  202. Using a DC power supply in place of a AC transformer
  203. High current voltage regulator
  204. Kepco 815b power supply
  205. power supply conundrum
  206. Help with specs on Plitron toroid
  207. ferite core turns
  208. A very, very simple soft start circuit
  209. Balanced 230v mains supply - oppinions please!
  210. Shunt resistors in parallel to a load?
  211. Lepai T2020A+ and 12v 4500mA Rechargeable Battery?
  212. ELV light transformer buzz in mains
  213. dumb question about LM317 series.
  214. Replacing electrolyics in a power supply?
  215. How to measure noise of a power supply in LTSpice?
  216. -15V-0- +15V supplies from 2 Wallwarts
  217. another Duncan PSUD question...
  218. Switched power supplies better sometimes?
  219. question about transformer current capability
  220. Power Supply Regulator Replacement Help
  221. Asking for help: TEAC A_H300 thermal fuse gone
  222. Help With Winding a Switching Transfomer
  223. Question to build a 20V high current power supply
  224. soft start help
  225. Oscilloscope picture & Tororid +Bridge Not what I expected.
  226. Resistor before transformer
  227. LM317+TL431, really?
  228. Voltage feedback for IR2153
  229. How to test a Toroidal Transformer
  230. Powersupply Caps upsiddown
  231. Understanding shunt voltage regulator circuit
  232. First DIY PSU, based on CREEK OBH-2
  233. Battery Powered DAC Charging diagram?
  234. Non audio: High current voltage regulator?
  235. Question about Duncan PSU designer
  236. Rectifier caps; go for the huge ones?
  237. what happens when a transformer is very heavily loaded?
  238. How much load is too much load on a voltage doubler?
  239. Power Supply for tri-amped speaker
  240. power/ground interference
  241. Transformer connectivity
  242. Full Wave Rectification without Center Tap?
  243. Powering up a dual primary toroid, half at a time.
  244. Virtual Battery PSU
  245. Transformer
  246. Tutorial: Compute the relative power of each winding in a multi-winding transformer
  247. Overdamping RC snubber network
  248. Well my 1000W Silverstone crapped out
  249. Help converting 13.5 volt ac to 20 volt
  250. Get ground for non-centertapped toroid?

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