View Full Version : Power Supplies

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  1. Jan's quizz in the February Newsletter
  2. Amp PSU Pops
  3. can i use this rectifier? help thanks
  4. Radiated Emission Tests
  5. floating power supply designs
  6. 230 50hz-120v 60hz
  7. Please clarify power calculation
  8. applying smps to a preamp with rectified power supply
  9. Possible to charge 24 V Battery with 10 Ampere SMPS ?
  10. Switching Power Supply Eagle File
  11. Janus regulator troubleshooting
  12. Power Transformer Issue
  13. need help picking torroid
  14. Bulgin AC power switch
  15. LM723 Voltage regulator
  16. Question: Dc on the Mains from three phase?
  17. Using a 24v SMPS for a 12v board?
  18. Best Capacitor for Bridge Diode Snubber?
  19. Efficiency of 1000W flyback
  20. SMPS from Connexelectric?
  21. SMPS Question
  22. Quality SMSP with 2x35V/2x5A !
  23. Current density in smps transformer windings
  24. Gigaworks regulated PS
  25. Power supply positive-negative-ground from a single power supply
  26. hypex softstart for high power PSU
  27. SMPS noisy and overheating
  28. Comments on National Semiconductor Power Supply Design??
  29. Main Filter Caps/Bypass formula?
  30. Transformer winding -101
  31. A question about LM7812 (Regulator)
  32. Gigrac 1000st Power Supply
  33. Full Bridge SMPS is cheaper than Half-Bridge?
  34. LME49811 as a guitar amp.
  35. Extra leads from transformer, et al.
  36. Suggest a board - 18vac to 12vdc
  37. Onkyo amp expert help needed.. or really anyone that can diagnose a problem
  38. Voltage remains constant, right?
  39. First PSU, got a question
  40. How to measure transformer output
  41. High capacitance vs load on Bridge rectifiers
  43. Regulation of +/-50V SMPS for Class D?
  44. SMPS 100V 1A with PFC Help Needed
  45. SMPS Output Inductor Design
  46. A little sourcing help
  47. Ferrite transformer SMPS-help!
  48. My first Jung regulator: help needed
  49. PFC EVM as 390V + 6.3V tube supply
  50. Power flow to Class D guitar amplifier
  51. ILP traffo info needed
  52. How to measure reverse recovery of HFA08TB60....
  53. Musical Fidelity P-140X PowerAmp without Transformer, need help!
  54. Completed my 450W SMps with Active pfc
  55. Connex A1000SMPS
  56. Project for the SMPS 350W!
  57. Two amps on one transformer?
  58. Transformer Selection
  59. AC Voltage on ungrounded SMPS output
  60. Carver CT-Seven transformer
  61. EMI Suppressing Capacitors
  62. Audio SMPS with PFC is overengineered?
  63. Power supply project
  64. Tying it all together - Low Noise Internal System Grounding
  65. Lowering power supply noise - looking for ideas
  66. LTC4365 protection IC
  67. SPower 78xx replacement
  68. Class D SMPS...with coupled inductor output?
  69. How do power leads make a difference to sound?
  70. Mains rectifier currents into SMPS
  71. Amp toroidal transformer
  72. BUF634 as power source for Bugle?
  73. Listening directly to DC Power Supplies
  74. reading an electrolytic capacitor can
  75. Linear PS with no ground pin
  76. Other type of transistor use for audio (amplification or power safety system)?
  77. Soft starting, Shutoff OR current limiter circuit
  78. DNM T-network cap in conventional power supply??
  79. 12V(fixed) with 3 Amp current
  80. The BoomCase By Mr. SiMo
  81. 230V<->100V converter???
  82. Great 12V regulator chip for car...I think
  83. How old electrolytic capacitors can safely be used?
  84. 15v to 3v question
  85. Is a power conditioner worth it?
  86. A switch for 2 power source for a single amp
  87. Head Amp PS
  88. Sweet folly: a tube SMPS
  89. protection circuit for TL494 Based smps
  90. Digital audio and seperate power supplies
  91. Please . . . advice on filter caps
  92. Building a simple "soft start" speaker protection circuit
  93. Removing noise from power grid
  94. 6V -> 5V ?
  95. Problem with B&O ASP1000!
  96. Ceramic capacitor non-linearity
  97. Switch mode power supply w/ Voltage divider
  98. Onkyo CR-305TX PSU FAult
  99. transformer rewinding
  100. Power Switch 'pop's frequency?
  101. Switcher EMC design
  102. Class D amp Regulated power supply??
  103. choosing transformer VA rating
  104. What transformer do I need?
  105. Inrush current in smps and it's inductors?
  106. how to test a power supply?
  107. Salas shunt help
  108. 2.5V to power LED
  109. Power Suppy 12v - 13,8v
  110. Valve power supply - How to size transformer?
  111. Marantz SR-7400 ps repair
  112. shelf oscilating psu
  113. behringer mx9000 - psu problem? or other?
  114. ATX power supply from 0...+/-40Vdc and 0...8A
  115. JVC Shelf Component System Power supply
  116. Shunt Regulator
  117. etd34 nt enough for 400w pfc
  118. Power supply build question from a first time Amp buldier
  119. Linear PSU circuit
  121. Paul Hynes, reliable?
  122. Janus shunt regulator problem
  123. JSR-01 super reg problem with -5vdc
  124. Help me understand ripple rateing please, I'm stuck.
  125. High Current Power Supply (no big transformer)
  126. Beginners attempt at a Bench Supply or Class A Regulated PSU based on LM317
  127. Fast diodes for power amps?
  128. Multi-voltage PS
  129. schematic for audio smps?
  130. SSLV1.1 builds & fairy tales
  131. Is this really an SMPS?
  132. power supply problem
  133. LM3886 as a PSU?
  134. Suggestions on PCB: LM317 As Walwart Regulator (1st Eagle PCB)
  135. Transformers with multiple secondaries - calculaing VA rating
  136. Need help in designing my PSU
  137. Bash Amp Power Supply Repair
  138. AC/DC umbilical cord
  139. 12v Regulator
  140. 360W SMPS lower or higher power (core and freq.)
  141. Virtual CT to divide voltage?
  142. combine stereo channel filaments ?
  143. Transformer problems...
  144. Help with -15V converter
  145. MAX current from AC single phase
  146. DAC PSU - capacitor sizes
  147. Charge a 12V SLA while using the amplifier.
  148. Problem with negative ALW superregulator
  149. power supply bypass cap size
  150. Flyback converter problems (UC3845 + MOSFET)
  151. Final verification of Protective Earth wiring
  152. SMPS Gnd, Chassis-Gnd, and Layer Stack
  153. Help With SMPS Transformer Size ID
  154. dc-dc full bridge boost
  155. My PCB design of Salas SHunt Reg
  156. Power factor correction for audio?
  157. is it possible to make a transformer out of choke?
  158. fear to power it up!!!
  159. 800W SMPS with no Power factor corrector
  160. Power Supply PCB for Randy Slone Totempole Amp
  161. SMPS with split rail output for Class D?
  162. PSU for class D...how reference controller?
  163. Split rail supplys for Class D amplifiers?
  164. Easiest way to supply +-60 and +-45 for cheapie ebay amp?
  165. calculating inrush to a capacitor bank
  166. Tony's latest traffo DIY build
  167. Simple dual PS
  168. Two bridges and a CT transformer....
  169. LLC resonant SMPS not for guitar amps?
  170. using pc fan for cooling meanwell in case
  171. 40Amp / 700 microHenry Power Inductor
  172. modification of the BOZ power supply
  173. LM317T CCS Improvement
  174. Single 12v and +-12v needed, What options?
  175. DX Amp PSU with DC Protection
  176. PSU's for Squeezebox and USB D/A converter?
  177. 200W SMPS for Class D guitar amp
  178. Regulations for Audio Amp SMPS?
  179. Question: Subsituting Capacitors in Power Supply
  180. 700W PFC above 600V output
  181. how to get a bi-polar dc outputs from a single Battery!
  182. LiFePo4 charger ?
  183. Power Transformer Temp
  184. Problem with using UC3855: Low output Voltage
  185. impact of the capacitors value increase
  186. Is this transformer okay?
  187. Need suggestion for 6.3V-0-6.3V
  188. Simon Series Shunt Regulator
  189. HELP KRELL KRC power supply lead missing
  190. SMP Rails?
  191. Power Supply layout?
  192. WTD 120v AC regulation to 3% schematic?
  193. 12v to 70v 1400w what do you think?
  194. Can someone identify this mosfet manufacturer?
  195. need help with blown mosfets..plz....
  196. How are Transformer Watts Determined?
  197. Replacing Diodes in Vintage HP Power supply?
  198. multiple supply pls heelp
  199. vdc drop
  200. Using a large 60hz toroid transformer as an SMPS transformer
  201. High Voltage Bridge Rectifier Confusion
  202. SMPS Trouble
  203. Half bridge Vs full bridge smps supplies
  205. transformer question
  206. Low Noise Linear regulator power supply
  207. Computer grade electrolytics
  208. High quality +/- 60v regulator options
  209. RC snubbers for diode recovery noise
  210. High Current Class A Amplifier Supply
  211. driving power mosfet with no gate resistor
  212. Simple regulated SMPS for my Ghettoblaster (pics)
  213. Power source for guitar amplifiers
  214. Duncan Designer II - Use of
  215. capacitor value help
  216. Silicon carbide rectifiers
  217. Duncan Designer II - Use of
  218. Inrush current limiter
  219. MIC pre-amps with switch mode supply
  220. Connecting centertaps together
  221. SS Rectifers and Zero-Crossing Distortion, possible fix or idotic idea?
  222. Regulated supply for power amp
  223. variac - breadboard with choke input
  224. Are different sized power supply caps ok?
  225. Twist-lok caps?
  226. LM1117 in DAC power supply
  227. How to connect PSU board to amp board?
  228. How do I measure amperage?
  229. Radio Spares 10,000uf polarity markings
  230. PSU sanity check - negative rail?
  231. Some Wenzel "Cleanup" Sims
  232. Vicor Ripple Attenutation Module und Switched Power Supply
  233. 2x18VAC instead of 18-0-18
  234. Will this work-zener variable regulator
  235. Possible PS chokes
  236. Replacements reg´s circuits L7805 - Help.
  237. No power output on new SMPS
  238. storage caps AFTER the SMPS
  239. Field coil PS?
  240. power supply guide
  241. Hybrid Bridges
  242. Regulated Supply for Direct Coupled Amp
  243. parallel tube rectifier filaments
  244. wat the possiblities ??????
  245. Smallest (smd?) bipolar supply PCB/kit ?
  246. Mains tranformer noise
  247. 400W PFC NEED HELP
  248. Local series regulators vs. global shunt regulator
  249. Diode regulator VS IC regulator.
  250. Help needed with complimentary pair.

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