View Full Version : Power Supplies

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  1. 0ne 100uF cap or ten 10uF caps (or two 200uF caps...etc)
  2. Computer power supply
  3. Simple Xformer+R (oh, mysterious R!) question
  4. Using PC PSU for Sure 4x100 amp board
  5. quasi variac controlled wallwart
  6. preamp supply LOW power LOW noise LOW cost
  7. how do i convert 220VAC to 220VDC?
  8. Snubbing power switch properly
  9. Synchronous rectifier
  10. Mfg: ReQuest IMC IQ88
  11. Topologia of the fountain ATX seventeam, design of the trafo
  12. soft start help
  13. Commercial Mains Filters - Good or bad idea?
  14. Xfrmr secondary phasing
  15. Need a little help with UPS as inverters
  16. cheap simple way to drop 3-5v
  17. What happens with an output choke on a SMPS
  18. SMPS Core question
  19. Unregulated Power PCB
  20. Problem with tube regulator?
  21. New fan for KEPCO SM-160-1M
  22. dual lm3886 41hz supply?
  23. Inexpensive low profile 50,000 uF 60V caps in PSU
  24. Battery management system - how complicate is it ?
  25. Dual PSU layout - how does this look?
  26. Placing capacitor close to a power transformer
  27. Compare IGBT-losses and MOSFET-losses
  28. How to schematic switching power supply full bridge ?
  29. SLA Batteries - Advantages over Wall Warts
  30. How much does a 300 VA trafo weigh
  31. Any tips on how to include two power supplies safely and efficiently?
  32. How to protect circuits from reverse current flow?
  33. MOSFET body diodes in phase shift smps
  34. Questions
  35. need a smallish 24v 5A power supply ..
  36. When selecting DC connector plugs and sockets how do you make sure they match?
  37. power down
  38. First Power Supply
  39. ARC style regulated psu, tubed
  40. Choosing transformer for desired wattage
  41. Discrete Regulator for VAS and Input Stage
  42. Question about measuring DC output ripple
  43. Protection of variac...
  44. LTspice - problem simulating simple rectifier
  45. Eliminating Battery Charger Noise in DIY Stereo
  46. two-stage soft-start for large toroidals
  47. Help : any tips to get +/-24v from SLA 48v Battery
  48. ground noise
  49. Crown CL2 service schematics needed.
  50. Lets build a POWER CONDITIONER! input needed.
  51. Odd SMPS. Please, can you help me with it?
  52. Tube PS for mic pre help
  53. 12 vdc to 19vdc 5a
  54. series electrolytics....
  55. Marantz 2215b Transformer and personal build
  56. toroidal trafo help
  57. Power supply for T-amp and pre-amp?
  58. Building a "stiff" supply and need some input...
  59. can anyone tell me what this is and where to order a new one?
  60. Need help on Delta 1010 PSU mods
  61. How do i build a 12v power supply ?
  62. First filter cap - Big or Small?
  63. Why voltage dropped in my new transformer?
  64. simple design not working.
  65. Charging 12V SLA with bike dynamo / generator
  66. DAR PLUS E-I transformer dead How to work out voltage?
  67. Adjustable +/- 0-50V 0-5A Power Supply Schematics
  68. Simple (?) Capacitor question
  69. transformer wiring causing brain melt down
  70. Adjustable negative voltage supply
  71. Why does my SMPS show poor regulation?
  72. 80's boomboxes - how did they power the amps?
  73. Power Supply Wiring
  74. Opinions on power supply.
  75. Quick Q - 2 SMPS supplies in parallel
  76. selection of optocoupler.
  77. Help with rectifier circuit
  78. 18V AC+ 12V AC to +/-15V DC??
  79. looking for a high voltage (1kv) transistor
  80. Transformer soft-start with relays
  81. Power supply thoughts...
  82. supply change
  83. power resistor value ohm an watts??
  84. needing some ideas for a radio controlled car re capacitors!!
  85. flyback design issues
  86. Wire diameter in SMPS transformer - confusion
  87. 7915 regulator troubles
  88. need to clear about voltage of diode rectifier for psu
  89. I need a PSU for 6 LM3886's
  90. Connexelectronic a350smps or meanwell usd350?
  91. Transformer wiring to mains
  92. SMPS gate drive - please educate me
  93. Sony f211 intergreated amplifier wont power up
  94. Fast capacitors for SMPS
  95. Simple 78xx replacements
  96. suggestions for a power supply mod
  97. Does a LM317 act like a transformer
  98. transformer rating for a 1000W rms amp
  99. Supply voltage doubler question
  100. psu suggestions for 4 x 300w 4ohm
  101. linn smps powersupply
  102. High frequency SMPS for audio
  103. Major inrush surge problem with Toroid, HELP!
  104. Custom power transformer requirements
  105. Threads for SS High Voltage Power Regulators?
  106. A slightly different question about parallel rectifiers
  107. triac replacing transformer is it possible????????????
  108. Old mini Atx Powersupply
  109. Help with rewinding a transformer
  110. Power supply for my laboratory bench
  111. why sound best??
  112. Velleman 200W amp
  113. non-isolated power supply?
  114. Simple question on reverse polarity protection
  115. 750W inverter
  116. Soft Start again
  117. 12V to 160V@500mA ?
  118. Massive 3000 power supply trouble
  119. possible transformer VA ratings
  120. Help with 0 - 120 V linear DC power supply
  121. Need some help designing an SMPS for a car amp
  122. Need help!
  123. Extreme DIY: Building a homemade nuclear reactor in NYC
  124. Super PSU transformer
  125. smps in seriel for tube power supply
  126. Voltage regulators that work ~50V?
  127. Citation toroid for TT
  128. What's the skinney on using a SMPS for Hi-Fi?
  129. Peak or not peak, that is the question?
  130. Quick question on connecting this power supply
  131. Tranformer size how much is too much?
  132. Help Calculating Voltage after Rectification
  133. 230VAC to 5VDC 2A SMPS power supply design needed.
  134. Need transformer material datasheet
  135. Have 7v ac need 6.3v ac, need simple ideer
  136. PA input voltage simple precision regulator
  137. Help please,need to build a power supply for a car amp for home use
  138. +5V high current low noise regulator?
  139. help with transformer
  140. Power supply for 2 x fosgate P200.2 Amps
  141. SMPS Transformer Cooling
  142. Transformer questions
  143. Tryin to find a transformer
  144. help looking for a space saving isolation transformer for a portable tube amp
  145. (help) behringer mx9000 ps revisited
  146. 2 transformers per channel
  147. Ross Powered Mixer PC-4110MT transformer wiring
  148. The poor man SMPS
  149. Current Transformer: New Idea
  150. capacitor value
  151. Where to buy step-down toroidal transformer with electrostatic shield?
  152. Help need with PS for Idiot
  153. Amp needed for speakers
  154. External power supply / dangerous voltage?
  155. Placing regulator chip close to amplifier
  156. [Newbie] IP317T +1A 18V transformer - How much power?
  157. Externally programmed and adjustable regulated outboard amp power supply
  158. Buck converter using TL494?
  159. Using SMPS
  160. Need to clean up power...
  161. Design choices 12>>40V 100W ETD29 SMPS
  162. Will this work with regulators?
  163. 500W or more
  164. simple ic for 0-100% duty cycle PWM
  165. Push-pull SMPS (12V to +-25V) question
  166. Power supply For TDA2030A
  167. SMPS design for a car amp....not sure which topology to go with
  168. Help for Full Bridge 800W quasi resonant SPM
  169. Just a nice video ...
  170. Two Transformer Balanced Power Unit
  171. Wire Kit for Battery
  172. Modifying Powersupply
  173. How easy is it to replace a transformer in a linear power supply?
  174. Wire DC Power Jack for 9V Battery
  175. choke loaded power supply
  176. Light Bulb Tester
  177. toroidal transformers help
  178. orion 2100 HCCA amplifier
  179. Does this two circuit have the same output?
  180. Toroidal hum/buzz. Modifyed Venus PS-400A
  181. Confusion about star grounding?
  182. Automotive input magamp PSU
  183. Synchronous Rectification
  184. Power supply problem
  185. Connecting 2 bridge rectrifier
  186. half-bridge to full-bridge
  187. Isolated PFC Topology choice, 800W.
  188. Transform computer supply into 400V supply for tubes
  189. Possible to rewire this PSU from 220V to 110V?
  190. Newbie question about transformer?
  191. Solid state rectifier for SE guitar amp (Vox AC4)
  192. Problem with dual tracking power supply
  193. mAh Testing... finding out...
  194. PWM controllers with built in FETs?
  195. the 1.25v of lm317
  196. Use of dual transformer for mono amp
  197. +/- 12v dc PSU Required
  198. 15v Halogen switched mode power supply
  199. RECOMENDATION for 40khz push-pull smps
  200. Linear Power Supplies with Torroidal transformers
  201. does have possibility to build a SMPS flyback 13.8v 50A ?
  202. SMPS flyback, transistor problem
  203. How to connect two secondaries to get a central tap
  204. My 4Kw smps finished
  205. 7ch TDA7294 PSU
  206. Need Schematic for Xantrex 1750 Prowatt Inverter
  207. 2kw inverter charger
  208. torridal designing software
  209. solen vs cerafine
  210. atx power supply inductor operating max. frequency ?
  211. High Speed PCB Layout
  212. Surge on power on causing major headache
  213. transformer for Legend Stage MK2 (65-0-65V)@10A
  214. Can I parallel LT1763 to double the current?
  215. power supply
  216. Shunt regulator using LM317 & LM337
  217. High quality, high voltage (~250V) reservoir caps for PSU
  218. How to drop voltage and current
  219. +/- 28V 3A supply
  220. High current low noise linear regulator?
  221. Psu based on an-1849 note from ni
  222. Advice Needed: PS for STK 463 chip
  223. SMPS nearly finished, not stable
  224. 35khz High Frequency AC Supply (Tube design)
  225. Commodore 64 Floppy Drive Transformer
  226. SMPS input 127Vac, output 13.8VCC / 200A, true or fake ? to see this video:
  227. 35khz High Frequency AC
  228. Thermal Compound Short a SMPS?
  229. Compensating for PS parasitic capacitance
  230. On soft start circuits and safety
  231. 230v 800va toroid on 115vac
  232. Which 24v dc power supply for T amp?
  233. Power transformer amperage
  234. 83mF Capacitor...Tripath smoothing
  235. srpp psu
  236. usb power noise filtering
  237. Question regarding a PFC output cappacitor selection
  238. Phantom power supply
  239. hand made 800VA EI Transformer
  240. no centre tap tranformer only 500va standard
  241. 48v power supply design questions
  242. adding and using secondary windings
  243. New power supply for Logitech Duet
  244. Sine Wave Inverter
  245. 4000VA Toroid Transformer Problem
  246. Quick question about shunt regs and CCS
  247. a free but not working Stabylex 12 VDC power supply to any one
  248. sg3525 spice model needed !
  249. To series connect dual secondary or not?
  250. PWM Controller ICs Choices

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