View Full Version : Power Supplies

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  1. Marantz 2215b Transformer and personal build
  2. toroidal trafo help
  3. Power supply for T-amp and pre-amp?
  4. Building a "stiff" supply and need some input...
  5. can anyone tell me what this is and where to order a new one?
  6. Need help on Delta 1010 PSU mods
  7. How do i build a 12v power supply ?
  8. First filter cap - Big or Small?
  9. Why voltage dropped in my new transformer?
  10. simple design not working.
  11. Charging 12V SLA with bike dynamo / generator
  12. DAR PLUS E-I transformer dead How to work out voltage?
  13. Adjustable +/- 0-50V 0-5A Power Supply Schematics
  14. Simple (?) Capacitor question
  15. transformer wiring causing brain melt down
  16. Adjustable negative voltage supply
  17. Why does my SMPS show poor regulation?
  18. 80's boomboxes - how did they power the amps?
  19. Power Supply Wiring
  20. Opinions on power supply.
  21. Quick Q - 2 SMPS supplies in parallel
  22. selection of optocoupler.
  23. Help with rectifier circuit
  24. 18V AC+ 12V AC to +/-15V DC??
  25. looking for a high voltage (1kv) transistor
  26. Transformer soft-start with relays
  27. Power supply thoughts...
  28. supply change
  29. power resistor value ohm an watts??
  30. needing some ideas for a radio controlled car re capacitors!!
  31. flyback design issues
  32. Wire diameter in SMPS transformer - confusion
  33. 7915 regulator troubles
  34. need to clear about voltage of diode rectifier for psu
  35. I need a PSU for 6 LM3886's
  36. Connexelectronic a350smps or meanwell usd350?
  37. Transformer wiring to mains
  38. SMPS gate drive - please educate me
  39. Sony f211 intergreated amplifier wont power up
  40. Fast capacitors for SMPS
  41. Simple 78xx replacements
  42. suggestions for a power supply mod
  43. Does a LM317 act like a transformer
  44. transformer rating for a 1000W rms amp
  45. Supply voltage doubler question
  46. psu suggestions for 4 x 300w 4ohm
  47. linn smps powersupply
  48. High frequency SMPS for audio
  49. Major inrush surge problem with Toroid, HELP!
  50. Custom power transformer requirements
  51. Threads for SS High Voltage Power Regulators?
  52. A slightly different question about parallel rectifiers
  53. triac replacing transformer is it possible????????????
  54. Old mini Atx Powersupply
  55. Help with rewinding a transformer
  56. Power supply for my laboratory bench
  57. why sound best??
  58. Velleman 200W amp
  59. non-isolated power supply?
  60. Simple question on reverse polarity protection
  61. 750W inverter
  62. Soft Start again
  63. 12V to 160V@500mA ?
  64. Massive 3000 power supply trouble
  65. possible transformer VA ratings
  66. Help with 0 - 120 V linear DC power supply
  67. Need some help designing an SMPS for a car amp
  68. Need help!
  69. Extreme DIY: Building a homemade nuclear reactor in NYC
  70. Super PSU transformer
  71. smps in seriel for tube power supply
  72. Voltage regulators that work ~50V?
  73. Citation toroid for TT
  74. What's the skinney on using a SMPS for Hi-Fi?
  75. Peak or not peak, that is the question?
  76. Quick question on connecting this power supply
  77. Tranformer size how much is too much?
  78. Help Calculating Voltage after Rectification
  79. 230VAC to 5VDC 2A SMPS power supply design needed.
  80. Need transformer material datasheet
  81. Have 7v ac need 6.3v ac, need simple ideer
  82. PA input voltage simple precision regulator
  83. Help please,need to build a power supply for a car amp for home use
  84. +5V high current low noise regulator?
  85. help with transformer
  86. Power supply for 2 x fosgate P200.2 Amps
  87. SMPS Transformer Cooling
  88. Transformer questions
  89. Tryin to find a transformer
  90. help looking for a space saving isolation transformer for a portable tube amp
  91. (help) behringer mx9000 ps revisited
  92. 2 transformers per channel
  93. Ross Powered Mixer PC-4110MT transformer wiring
  94. The poor man SMPS
  95. Current Transformer: New Idea
  96. capacitor value
  97. Where to buy step-down toroidal transformer with electrostatic shield?
  98. Help need with PS for Idiot
  99. Amp needed for speakers
  100. External power supply / dangerous voltage?
  101. Placing regulator chip close to amplifier
  102. [Newbie] IP317T +1A 18V transformer - How much power?
  103. Externally programmed and adjustable regulated outboard amp power supply
  104. Buck converter using TL494?
  105. Using SMPS
  106. Need to clean up power...
  107. Design choices 12>>40V 100W ETD29 SMPS
  108. Will this work with regulators?
  109. 500W or more
  110. simple ic for 0-100% duty cycle PWM
  111. Push-pull SMPS (12V to +-25V) question
  112. Power supply For TDA2030A
  113. SMPS design for a car amp....not sure which topology to go with
  114. Help for Full Bridge 800W quasi resonant SPM
  115. Just a nice video ...
  116. Two Transformer Balanced Power Unit
  117. Wire Kit for Battery
  118. Modifying Powersupply
  119. How easy is it to replace a transformer in a linear power supply?
  120. Wire DC Power Jack for 9V Battery
  121. choke loaded power supply
  122. Light Bulb Tester
  123. toroidal transformers help
  124. orion 2100 HCCA amplifier
  125. Does this two circuit have the same output?
  126. Toroidal hum/buzz. Modifyed Venus PS-400A
  127. Confusion about star grounding?
  128. Automotive input magamp PSU
  129. Synchronous Rectification
  130. Power supply problem
  131. Connecting 2 bridge rectrifier
  132. half-bridge to full-bridge
  133. Isolated PFC Topology choice, 800W.
  134. Transform computer supply into 400V supply for tubes
  135. Possible to rewire this PSU from 220V to 110V?
  136. Newbie question about transformer?
  137. Solid state rectifier for SE guitar amp (Vox AC4)
  138. Problem with dual tracking power supply
  139. mAh Testing... finding out...
  140. PWM controllers with built in FETs?
  141. the 1.25v of lm317
  142. Use of dual transformer for mono amp
  143. +/- 12v dc PSU Required
  144. 15v Halogen switched mode power supply
  145. RECOMENDATION for 40khz push-pull smps
  146. Linear Power Supplies with Torroidal transformers
  147. does have possibility to build a SMPS flyback 13.8v 50A ?
  148. SMPS flyback, transistor problem
  149. How to connect two secondaries to get a central tap
  150. My 4Kw smps finished
  151. 7ch TDA7294 PSU
  152. Need Schematic for Xantrex 1750 Prowatt Inverter
  153. 2kw inverter charger
  154. torridal designing software
  155. solen vs cerafine
  156. atx power supply inductor operating max. frequency ?
  157. High Speed PCB Layout
  158. Surge on power on causing major headache
  159. transformer for Legend Stage MK2 (65-0-65V)@10A
  160. Can I parallel LT1763 to double the current?
  161. power supply
  162. Shunt regulator using LM317 & LM337
  163. High quality, high voltage (~250V) reservoir caps for PSU
  164. How to drop voltage and current
  165. +/- 28V 3A supply
  166. High current low noise linear regulator?
  167. Psu based on an-1849 note from ni
  168. Advice Needed: PS for STK 463 chip
  169. SMPS nearly finished, not stable
  170. 35khz High Frequency AC Supply (Tube design)
  171. Commodore 64 Floppy Drive Transformer
  172. SMPS input 127Vac, output 13.8VCC / 200A, true or fake ? to see this video:
  173. 35khz High Frequency AC
  174. Thermal Compound Short a SMPS?
  175. Compensating for PS parasitic capacitance
  176. On soft start circuits and safety
  177. 230v 800va toroid on 115vac
  178. Which 24v dc power supply for T amp?
  179. Power transformer amperage
  180. 83mF Capacitor...Tripath smoothing
  181. srpp psu
  182. usb power noise filtering
  183. Question regarding a PFC output cappacitor selection
  184. Phantom power supply
  185. hand made 800VA EI Transformer
  186. no centre tap tranformer only 500va standard
  187. 48v power supply design questions
  188. adding and using secondary windings
  189. New power supply for Logitech Duet
  190. Sine Wave Inverter
  191. 4000VA Toroid Transformer Problem
  192. Quick question about shunt regs and CCS
  193. a free but not working Stabylex 12 VDC power supply to any one
  194. sg3525 spice model needed !
  195. To series connect dual secondary or not?
  196. PWM Controller ICs Choices
  197. use of dc-dc converters in high power amps supply
  198. Bridgeless PFC help
  199. Several psu ground question.
  200. Stable switching speeds for IGBTs in SMPS design
  201. LM4562 decoupling...
  202. Powering multiple opamps - cascaded rails or starred?
  203. Resistor Gate
  204. commercial smps
  205. mains light bulb tester.
  206. "Power On" Led using bleeding resistor. An Issue ?
  207. Need power supply for msb link iii dac
  208. Full bridge Converter Design
  209. Farnell Transformer- cheap 300VA 2*30V
  210. Shorten leads of primaries to connect them in series ?
  211. diy bybee quantum purifiers?
  212. Any schematic for a diy power line sniffer noise Detector ?
  213. meanwell ???
  214. What fuses to use
  215. Piling two toroidal transformers
  216. multiple SMPS
  217. Exodus RFI/DC Filter, any OPINIONS?
  218. How do I know what a transformers VA is?
  219. coupled output inductor in dual smps
  220. Want to make a DIY 19" rack power conditioner. Please help?
  221. zero standby power supply
  222. reliable UK distributor for 2SK170,2SK370
  223. Speed control for syncronous motor
  224. another transfomer question
  225. A-class Preamp PSU
  226. F5 psu layout
  227. Replacing a wall wart with a bigger transformer
  228. Battery Pack Burnout
  229. 7W dissipation in linear reg.= 100degC???
  230. Is Trafco a trusted company in Belgrade?
  231. Toroid xformer hookup question - Antek
  232. Sqeezebox 3 separate powersupplies????
  233. Wiki on Shunt regulation
  234. help with disigning 3 phase AC to DC converter
  235. comining rail to rail and rail to ground decoupling?
  236. Swapping in transformer?
  237. Voltage doubler, tripler or other creative solution?
  238. toroid with single 240v primary on hexateq softstart?
  239. Transformer grounding questions
  240. Do larger caps age better then small ones?
  241. CAPS ! One big or 4 small ?
  242. How to control the cooling fan ... ?
  243. HexFRED and SMPS?
  244. KV PS capacitor options
  245. Need SMPS circuit for LM3886 based audio amp
  246. Soundcraft Folio Schematics
  247. spike problem !
  248. Some questions about transformer
  249. Preamp Power Supply Question
  250. Air-Core Transformers with applications in Tesla Coil design

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