View Full Version : Power Supplies

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  1. newbie PSU building thread
  2. Flat pack transformer experience: a lot of EMI and buzz
  3. Circuit for charging capacitors/batteries in parallel?
  4. Charging 10x AA NIMH's in series with no balancing?
  5. LT8331 -- Single chip high voltage dc-dc converter
  6. OP AMP input error (LM7121)
  7. LL 1662 Lundahl mains isolation transformer
  8. 250 to 300 volt regulated 300ma linear supply
  9. Two ways to make 12.6v, which is preferred?
  10. Test circuit for regulating charge to capacitor
  11. 2016-10 200mAh NICD -0.3v?
  12. PSU
  13. Battery box with voltmeter does not work
  14. APERO : Voltage regulator based on an idea of G. PERROT
  15. Transformer hum
  16. PSUD usage questions
  17. Damped LC filter for low pass (1500Hz) filtering
  18. regulator puzzle
  19. help for a beginner?
  20. How to calculate transformer secondary resistance ?
  21. Capacitor long term overvoltage
  22. switch mode power supply for good amplifiers
  23. the new Linear Technology - LTM4643 nice
  24. Advice on scavenged Nakamichi AV-10 power supply, please.
  25. Mains power to usb charging without a wall wart(UK)..?
  26. Toroid or EI ? Pros and cons plz...
  27. 220V to 110V Stepdown Transformer. Can it be reversed ?
  28. How to wire transformer
  29. Toroidal 50hz buzz after short?
  30. PSU voltage sag vs nominal current
  31. Reverse-engineering + fix of a wireless charger
  32. Please criticize my PSUD simulation
  33. A "filterless" supply
  34. Opinion on ground loop
  35. Where I can start..?
  36. I found some nice heatsinks for discrete diode bridges
  37. SMPS300RS 24v Behaving Strangely
  38. Help Me Choose a Transformer (PLZ!)
  39. GOSS Band?
  40. LM317/337 dual supply
  41. unusual bridge rectifier
  42. LT3042 universal PSU PCB
  43. AP24D4 relay replacement
  44. Why Schottkty's?
  45. 12v wall wart + 12v DC to AC power inverter = NOT overunity?
  46. How do you design power supplies?
  47. SSHV2 vs. 21 century Madia Rev. 2
  48. Kirchhoff’s Law repealed!! {PSUD}
  49. Hypex Smps 400/180 vs Connex Smps 300Re
  50. Power supply - Millett Tube Mic Preamp
  51. Power transformer question
  52. Power Supply for "Engineer's Amplifier"
  53. Power supply filtering confusion
  54. Instek GPD-3303s Power Supply
  55. Linear PS upgrade VS. Walwart... SONIC improvements???
  56. Crazy Audio high voltage shunt regulator
  57. Opinions on ebay PSU design
  58. Technical question about Audiophonics Linear power supply
  59. Is PSU power rating the whole story?
  60. Amplifier Board for 400 watt 2x48v Transformer
  61. Capacitor value?
  62. PS Choke in ground leg
  63. 24v 5A rechargeable battery system
  64. How much capacitance is really enoughi
  65. Question about a power supply
  66. computer power supply
  67. What's the secret behind BATTEROO?
  68. a quick question about LLC SMPS
  69. Fets
  70. "Magnetic ballast" as power choke?
  71. At a loss
  72. True Dual Mono?
  73. Car battery charger design
  74. PSUD (Power Supply Unit Designer)
  75. SMPS for headphones amp ?
  76. Need Power Supply Help
  77. Clamping Hot and Neutral with TVS: worth doing?
  78. Musikal Fidelity E20/E30
  79. My take on the winding's phase-finder (AKA "Phasedots tester")
  80. use single side of dual supply
  81. LT3751 Driven, +/-400V Shunt Regulated Supply
  82. Which power switch???
  83. External psu to dac and headphone amp
  84. I don't know anything about psus, and i need one...
  85. Is there a reason why the output caps in this regulator don't match?
  86. Design for Power Supply with 24-0-24V 2A transformer
  87. Help me find a new Power transformer
  88. 2 box monoblock power supply advice needed
  89. Snubber Calculations
  90. Power supply el84se hook up
  91. Power supply blowing indicator lamp
  92. pcb or voltage regulator module for charging
  93. Best 5V SMPS ?
  94. Supply bypassing using 2nd order RC LPF
  95. small power transformer
  96. rail fail protection
  97. hot battery
  98. Topping A30 power supply recommendations?
  99. Dual Bank Floating Supercap Supply
  100. Any dummy 5X20mm fuse ideas?
  101. Switch mode power supply help
  102. Rca ground shocks
  103. Power Supply for Starving Student hybrid?
  104. Power supplies differences
  105. Dual 18 volt 5 amp power supply
  106. Single power supply for two amps
  107. Critique my capacitor board for Adcom GFA-535/545
  108. Single power supply for multiple (raspberry pi+amplifier) devices?
  109. Battery Charger Circuit
  110. SMPS power supply
  111. Power supply fo A class
  112. Lm317 tracking prereg phase issue
  113. Pi filter or not?
  114. Mei amplifier won't power up
  115. CLC Filter using the windings of two identical E+I Transformers
  116. Test Bench : SMPS240QR from Connexelectronics
  117. bridge rectifier
  118. SMPS audiopower Roberto PUPELLA
  119. Need a +15, -15, +48v supply
  120. Incredibly dumb LTspice question: simulating amp load for PSU
  121. Transformer---just need reassurance.
  122. LM317/337 Schematic Questions.
  123. Thermally Conductive Epoxy
  124. interesting ripple rejection claims
  125. Power supply replacement recomendations
  126. Power supply for JLH2003 & F5 Amplifier
  127. dual secondary question
  128. Inductor question
  129. 12 VAC power supply for audio amp
  130. LM10 Power Supply 0-50V 0-2A with temperature protection
  131. Schematic of flyback powersupply in Labgruppen FP13000
  132. Dumb moment - grounding center tap
  133. Thermistor Identification
  134. Transformer in separate case
  135. cap multiplier after the regulator?
  136. Mixing console power supply
  137. lm 4780 transformer
  138. Ultra-low noise battery over-voltage circuitry ...
  139. Audio Power Supply?
  140. line conditioner, ac incoming filter..... what to call, how to build?
  141. 200W LLC ZVS Power Supply with FSFR2100XS
  142. fuse for transformer primary.
  143. IEC standards documents for free
  144. Sharing double tap secondary between two amplifier boards with built-in rectifiers
  145. G2 stabilized supply from wavebourns pyramid - modifications?
  146. [NOOB] Many power supply questions on DIY project
  147. when is ground not ground?
  148. External/Autonomous Soft-Start
  149. Firstwatt F5 power supply
  150. Batteries
  151. Grounding Scheme
  152. Battery/DC Supply With Phantom Power
  153. Question about transformer with three taps
  154. Merlin's Gyrator and Cap Multiplier
  155. Mains powered bench/pedal supply
  156. 18650 battery management modules
  157. Looking for a ClassII toroidal transformer
  158. AZ1 PSU
  159. Filtering Capacitors Values
  160. Missmatched toroid
  161. Power suply capacitors change
  162. HV regulator
  163. Soft/slow start & inrush limiting
  164. IEC C8 power socket, main ground and security
  165. Re thermal fuse
  166. ltc3265 datasheet question/error?
  167. Recommended Text for Grounding & Shielding?
  168. What can you tell me about this power supply?
  169. How do you fuse your PSUs? (for people outside UK)
  170. Transformer powering two circuits
  171. Safety concern on external HV PSU
  172. Dual Power Supply help
  173. How Much Amplifier Power Do I Need?
  174. LM317 6.3V 0.9A how much should be the voltage supply?
  175. Help reverse engineering choke specs.
  176. Switching -12V with Mosfet from digital logic
  177. Powering active speaker
  178. DAC power supply - degrees of separation
  179. Cascoded MOSFET with 2015 Jung Universal Regulator
  180. Marantz Restoration
  181. Transformer help needed
  182. Toroidal transformer: multiple secondary outputs
  183. Power Supply for LM3886 Gainclone amp
  184. parallel after regulator?
  185. toroidal transformer rewind
  186. Choke Input Filter with small value cap
  187. Are LT1963 and TL1963 equivalent parts?
  188. Ground Loop Breaker
  189. PSU recommendation needed for mic pre.
  190. DIY 2V-10V power supply for binaural mics
  191. Best capacitors for power supplies update
  192. Where to put a second choke in PSU
  193. Jung regulator with fast output start
  194. nuforce amp board hypex (or any other brand psu)
  195. PCB or kit for bipolar LM317/337 supply
  196. VA rating
  197. Mains inlet... to filter or not to filter?
  198. Transformer Choice
  199. Lm317/337 supply help needed
  200. Behringer SMPS Model UB-SPSU2 with TOP245Y (used in Mixer Model UB1204) death
  201. Maddening ripple hum
  202. linear unreg PS using multiple identical transformers in parallel?
  203. DC-DC 7-50V to 3-45V Max 6A
  204. Single chip buck with programmable voltage and current like LT8613
  205. Tuning a Jasmine LP2.0 Power Supply
  206. A Series-Shunt regulator: The "ZiggyReg V 2.0"
  207. PSU for Apex XLR Pre
  208. 12v DC to 12V ac - does this inverter exist
  209. Goldpoint Virtual Ground
  210. TDA7492 power supply
  211. Power Supply for line level application
  212. A new DC12V Power supply
  213. Cheap linear power supply.
  214. Connecting IEC filter
  215. Which Connex SMPS500?
  216. [LTSpice] Beginner - help with capacitor multiplier?
  217. Suggestions how to raise the IPS V on Reg PSU
  218. how to convert power to polar volts: 48v to 15-0-15?
  219. Auto mains voltage and frequency detection and configuration
  220. Exceeding valve diode plate voltage ratings
  221. Need help regarding soft start
  222. Carver to Naim conversion
  223. Strange LM337 behavior
  224. Help needed with a regulated power supply
  225. Need transformer output resistance of PSUD
  226. Cap-mult improvements ideas
  227. integrated amp hum through speakers
  228. Power Amplifier Noise Filtering Question
  229. help with wall wart ac/ac power supply
  230. power supply circuit in subwoofer
  231. 4 channel amp grounding, star gnd, hum
  232. Power grid spikes - bad for smps?
  233. Chinese Linear low power/noise - quality?
  234. LT1083 regulator, low voltage behavior
  235. CLC Rectifier
  236. Sony Power Board Question - How do I turn it on?...
  237. Li-Ion/Li-Po based dual PSU
  238. Back to back mains transformers
  239. How to measure LM317 output voltage help!
  240. fixing/upgrading micro seiki dd-35
  241. Measuring PSRR
  242. Linear power supply
  243. Need help with HP 6434b power supply
  244. Modified APEX Stabilised PSU for ESP p3a-p3b
  245. Help Wiring transformer to tube buffer please!
  246. Rectifier Diode - as part of filter ? / Component noise ?
  247. Wiring new toroid tranny
  248. CD buffer PS resistor guesstimate?
  249. changing diodes/rectifier in mcintosh mc2505
  250. 100 VDC power supply caps?

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