View Full Version : Power Supplies

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  1. choosing transformer VA rating
  2. What transformer do I need?
  3. Inrush current in smps and it's inductors?
  4. how to test a power supply?
  5. Salas shunt help
  6. 2.5V to power LED
  7. Power Suppy 12v - 13,8v
  8. Valve power supply - How to size transformer?
  9. Marantz SR-7400 ps repair
  10. shelf oscilating psu
  11. behringer mx9000 - psu problem? or other?
  12. ATX power supply from 0...+/-40Vdc and 0...8A
  13. JVC Shelf Component System Power supply
  14. Shunt Regulator
  15. etd34 nt enough for 400w pfc
  16. Power supply build question from a first time Amp buldier
  17. Linear PSU circuit
  19. Paul Hynes, reliable?
  20. Janus shunt regulator problem
  21. JSR-01 super reg problem with -5vdc
  22. Help me understand ripple rateing please, I'm stuck.
  23. High Current Power Supply (no big transformer)
  24. Beginners attempt at a Bench Supply or Class A Regulated PSU based on LM317
  25. Fast diodes for power amps?
  26. Multi-voltage PS
  27. schematic for audio smps?
  28. SSLV1.1 builds & fairy tales
  29. Is this really an SMPS?
  30. power supply problem
  31. LM3886 as a PSU?
  32. Suggestions on PCB: LM317 As Walwart Regulator (1st Eagle PCB)
  33. Transformers with multiple secondaries - calculaing VA rating
  34. Need help in designing my PSU
  35. Bash Amp Power Supply Repair
  36. AC/DC umbilical cord
  37. 12v Regulator
  38. 360W SMPS lower or higher power (core and freq.)
  39. Virtual CT to divide voltage?
  40. combine stereo channel filaments ?
  41. Transformer problems...
  42. Help with -15V converter
  43. MAX current from AC single phase
  44. DAC PSU - capacitor sizes
  45. Charge a 12V SLA while using the amplifier.
  46. Problem with negative ALW superregulator
  47. power supply bypass cap size
  48. Flyback converter problems (UC3845 + MOSFET)
  49. Final verification of Protective Earth wiring
  50. SMPS Gnd, Chassis-Gnd, and Layer Stack
  51. Help With SMPS Transformer Size ID
  52. dc-dc full bridge boost
  53. My PCB design of Salas SHunt Reg
  54. Power factor correction for audio?
  55. is it possible to make a transformer out of choke?
  56. fear to power it up!!!
  57. 800W SMPS with no Power factor corrector
  58. Power Supply PCB for Randy Slone Totempole Amp
  59. SMPS with split rail output for Class D?
  60. PSU for class D...how reference controller?
  61. Split rail supplys for Class D amplifiers?
  62. Easiest way to supply +-60 and +-45 for cheapie ebay amp?
  63. calculating inrush to a capacitor bank
  64. Tony's latest traffo DIY build
  65. Simple dual PS
  66. LLC resonant SMPS not for guitar amps?
  67. using pc fan for cooling meanwell in case
  68. 40Amp / 700 microHenry Power Inductor
  69. modification of the BOZ power supply
  70. LM317T CCS Improvement
  71. Single 12v and +-12v needed, What options?
  72. DX Amp PSU with DC Protection
  73. PSU's for Squeezebox and USB D/A converter?
  74. 200W SMPS for Class D guitar amp
  75. Regulations for Audio Amp SMPS?
  76. Question: Subsituting Capacitors in Power Supply
  77. 700W PFC above 600V output
  78. how to get a bi-polar dc outputs from a single Battery!
  79. LiFePo4 charger ?
  80. Problem with using UC3855: Low output Voltage
  81. impact of the capacitors value increase
  82. Is this transformer okay?
  83. Simon Series Shunt Regulator
  84. HELP KRELL KRC power supply lead missing
  85. SMP Rails?
  86. Power Supply layout?
  87. WTD 120v AC regulation to 3% schematic?
  88. 12v to 70v 1400w what do you think?
  89. Can someone identify this mosfet manufacturer?
  90. need help with blown mosfets..plz....
  91. How are Transformer Watts Determined?
  92. Replacing Diodes in Vintage HP Power supply?
  93. multiple supply pls heelp
  94. Using a large 60hz toroid transformer as an SMPS transformer
  95. High Voltage Bridge Rectifier Confusion
  96. SMPS Trouble
  97. Half bridge Vs full bridge smps supplies
  99. transformer question
  100. Low Noise Linear regulator power supply
  101. High quality +/- 60v regulator options
  102. RC snubbers for diode recovery noise
  103. High Current Class A Amplifier Supply
  104. driving power mosfet with no gate resistor
  105. Simple regulated SMPS for my Ghettoblaster (pics)
  106. Power source for guitar amplifiers
  107. Duncan Designer II - Use of
  108. capacitor value help
  109. Silicon carbide rectifiers
  110. Duncan Designer II - Use of
  111. Inrush current limiter
  112. MIC pre-amps with switch mode supply
  113. Connecting centertaps together
  114. Regulated supply for power amp
  115. Are different sized power supply caps ok?
  116. LM1117 in DAC power supply
  117. How to connect PSU board to amp board?
  118. How do I measure amperage?
  119. Radio Spares 10,000uf polarity markings
  120. Some Wenzel "Cleanup" Sims
  121. Vicor Ripple Attenutation Module und Switched Power Supply
  122. 2x18VAC instead of 18-0-18
  123. Will this work-zener variable regulator
  124. Replacements reg´s circuits L7805 - Help.
  125. No power output on new SMPS
  126. storage caps AFTER the SMPS
  127. Field coil PS?
  128. power supply guide
  129. Hybrid Bridges
  130. parallel tube rectifier filaments
  131. wat the possiblities ??????
  132. Smallest (smd?) bipolar supply PCB/kit ?
  133. 400W PFC NEED HELP
  134. Local series regulators vs. global shunt regulator
  135. Diode regulator VS IC regulator.
  136. Help needed with complimentary pair.
  137. LM4780 Power Supply Capacitor
  138. arcam A80 Amplifier problem with power on button
  139. line filter
  140. What sort of PSU is this?
  141. 75VA EI or 80VA toroid.
  142. motorboating noise due to transformer?
  143. power for logic dm101
  144. Line voltage selector Revox B750 MK II blew up
  145. Transformer calculations
  146. Help with Victoria Magnetics Transformer
  147. Accu battery for LM3886
  148. Newbie attempt at a full-fledged Regulated PSU
  149. Lancing a wall-wart.
  150. spike problems
  151. Improve grounding - Does anyone know what this is about?
  152. Output voltage Alwsr super reg
  153. Question about 110V to 220V converter
  154. Could someone tell me a bit about this PS?
  155. inrush bypass using smps output
  156. Mic pre and phantom power PSU questions
  157. SMPS feedback path
  158. Boost converter
  159. How to reduce DC voltage ?
  160. Half Bridge SMPS series Capacitor selection
  161. Need recommendation for Salas Shunt type for AXO board
  162. Connecting a Meanwell s-350-27 to the mains power
  163. LM317 experiments and measurements
  164. Mounting an ei core sideways
  165. Tapping a main toroidal
  166. 750W SMPS
  167. need hel with smps txfr .........
  168. regulated PS grounding scheme questions
  169. 120 to 230 voltage automatic switch
  170. Cleaning up SMPS output
  171. Power Supply Questions
  172. I need 15 volts regulator from 40 volts DC
  173. Pre amp PSU
  174. Ground Hanger.....really!?!?
  175. Royer
  176. SMPS Forward Active Reset
  177. Low cost compact power supply for sub-mini tube preamp
  178. SMPS feedback compensation
  179. Permissable voltage sag?
  180. PS for t-amp, switching mode, where to get, DIY?
  181. Need help on RC filter for power supply
  182. 350w SMPS troubleshooting.
  183. Building SMPS for +50v and -50v
  184. Meanwell 27V 13A vs Noname with same spec?
  185. 1000W SMPS Based on IR2110
  186. filament wiring of dual rectifiers
  187. Best sounding SS rectifiers?
  188. help making sense of measurements
  189. EMI Filter Choke Safe?
  190. Transformer VA/current for 6xNE5532?
  191. Dual 12V preamp power supply
  192. Mark Levinson ML1
  193. Would this work? (15VAC to 12VDC & 24VDC)
  194. Beginner's Question : Identifying wires on a unknown transformer
  195. Zeners for shunt regulation and ground offset
  196. Big heavy Siga toroid...any ideas or use?
  197. what if common ground not zero volt
  198. Hypex SMPS's?
  199. Beginners Question
  200. Power Supply
  201. EI Transformer Questions
  202. Switch mode power supply in LCD TV
  203. Definitive Technology PF15TL/1500TL+ 240V AMP - AFAD
  204. Alternative Designs
  205. I need help building a power supply
  206. 300W SMPS design .............. fully tested
  207. I need an Audo Alchemy power supply
  208. need a amp to run a car amp inside
  209. Frequency generator 50-100kHz IC?
  210. Getting 14.4v
  211. Why is it not a Constant Current Source ?
  212. Need a -100V Voltage regulator
  213. 12V low power AC/DC PSU - Capacitor bank after regulator?
  214. Help modify PSU!
  215. Troubleshooting Sherwood RV-6010R surround reciever PSU
  216. laptop transformer
  217. Dual polarity power supply with a single secondary transformer?
  218. High current Jung power supply with HT regulator pcb
  219. earth grounding questions when using shielded cat5 & neutrikplugs
  220. Noisy IC Universal Regulator
  221. +-30Vout with LM31+337
  222. offline SMPS aux supply
  223. H-bridge inverter circuit
  224. Replacing Filtersupply large can capacitors
  225. SMPS IR2153 vs ATX transformers
  226. Protection circuit for IR2110 Class D Mosfet Driver ?
  227. Problem with schottky
  228. Super, basic power supply wiring question
  229. ESP Fan Controller to drive a relay
  230. Help Finding +/- 35V Power Supply
  231. Why transformerless PS = death?
  232. Will this blow my choke to pieces?
  233. Random attempt to improve power supply
  234. transformer and rectifier confuguration
  235. Virtual ground / Rail Splitter using only LM317
  236. Can you make an amp power supply out of a car radio vibrator?
  237. Isolation transformer connection
  238. 14.4vrms Full Load Transformer for Alpine MRV-F400
  239. 63V caps, 62V B+ PSU ehh
  240. Parallel caps in Hafler
  241. Rotel RX-500 panel light?
  242. Using computer PSU with Arjen's Ta2024 mkII
  243. How much (capacitance) is too much?
  244. need help building a switching power supply for car amps
  245. Sony STR-D511 power transformer
  246. help for PSU
  247. Onkyo TX-DS474 Power Supply Modification
  248. Harman Kardon HK 620 transformer is dead
  249. Obsessing about layout
  250. PS with boosted rails for IPS, VAS and Pre-Drivers

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