View Full Version : Power Supplies

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  1. Overcurrent, overheat and overvoltage protection for TL494
  2. Resonant SMPS
  3. Regulated Heater test supply
  4. Question about this transformer secondary configuration
  5. PSUD2 Capacitor Resistance???
  6. Single supply RCA input Bias
  7. external psu for multiple Behringer DCX2496's
  8. Power Supply/Class D
  9. Is a 9v transformer large enough?
  10. A safe and elegant way for soft-start
  11. Is it possible to use the 12v line from 2 x ATX PC PSU's to get 24v?
  12. When to use softstart
  13. 12v -> 24v power supply
  14. 60hz Line filter for PSU
  15. connecting audio ground to Safety Earth
  16. Just a few newbie questions about rail voltage
  17. rewinding secondary on toroid
  18. Chipamp with crossover question
  19. smps problem (strange waveforms)
  20. SMPS questions
  21. Power Conditioning
  22. 12VDC-18VDC regulated voltage booster
  23. Unwinding a toroid?
  24. Lengthy Time Constants for PSU's
  25. TFT running off PC's PSU, noise?
  26. built a car amp, have an issue
  27. Pedalboard Power Supply
  28. Need help w/ efficient DC-DC switching converter
  29. basic question regarding voltage doubler
  30. winding a toroidal
  31. How to create a 3000 Ampere peak current ?
  32. using series 0D3's for a PSU
  33. DC Convertor?
  34. to convert a 12v dc car adapter to support 19 volts dc
  35. Anyone used the MIC29752 ?
  36. Noise filter for my amp? Please help
  37. winding the primary
  38. short circuit protection for computer SMPS
  39. need help with a power supply design
  40. my smps project help
  41. Power Supply Question
  42. Slaving a mains SMPS...why not
  43. too much capacitance in PSU???
  44. Parallal SMPS to get higher current
  45. help me with a half bridge smps(sg3525)
  46. Question about bifilar primary winding
  47. Behringer EuroDesk MX9000 mixer problem - Help!!!
  48. Linear regulator
  49. Switch Mode PS question (Chip Amp)
  50. Noise from TL494 Flyback supply
  51. Please rate this psu design
  52. SG3526 Offline SMPS schematic need please
  53. Simple BIG 12VDC supply ideas wanted
  54. help, unknown toroids
  55. Zener regulated power supply
  56. Offline halfbridge smps gate drive
  57. Preventing +6 Amp surge
  58. Power Supply Umbilical Question
  59. Digital zero-voltage SPS with PID contrlol and feed forward
  60. SMPS driver transformer details needed
  61. Need to power this massive system...
  62. .LAY pcb files
  63. SG3525 feedback with opto
  64. SMPS 35V 10A - please check shematic
  65. in wall speakers and amplifier specs
  66. Best point to join secondaries
  67. Multiple regulator question... regs in series...
  68. Taming mains voltage
  69. Equations,Calculations & Theory of FERRITE TRANSFORMER design
  70. Question regarding LM317 & 100kHz Fsw SMPS passing through
  71. PS voltage without load
  72. I need computer power supply Schematic using TL494
  73. Pfc + Ups = ???
  74. How do I tame screwy voltages on an Xformer
  75. My first 37000uf PSU
  76. Tweaking my discrete component buck converter
  77. voltage rating of sulzer
  78. Exceeding electrolytic cap rating
  79. AC autoranging detector circuit
  80. Comp SMPS capacitor question
  81. Why aren't there any Hi-Voltage SMPSU's ??
  82. Transformer - mystery VA
  83. dual transformer power supply
  84. PSU schematics
  85. using voltage drop to calculate current
  86. Can a toroid be reversed?
  87. Cheap 12V ultra low impedance supply.
  88. Vds oscillation
  89. Vds oscillation at low duty cycle
  90. useing 2 regulators for double voltage...is it possible??
  91. Transformer help
  92. "Surge Suppressor Diodes"...??
  93. Balanced-power transformer for U.S. 115-125VAC
  94. Stupid transformer question I should know but don't
  95. High Current Power Supply 12v, with zener on base
  96. 12v UPS relays Trigger, 1 ~ 11v no trigger
  97. Wiring PLitron 30VA, 2x30VAC
  98. Filter Cap Directly from Rail to Rail, excluding Center Tap
  99. Convert Dac from AC to Battery Power
  100. Help with phase/polarity of transformer
  101. Lossless Snubbered Flyback
  102. Battery powered PSU implementation
  103. DIY balanced power unit with dual 60v secondary transformer?
  104. Help needed: Mains stabilization from 3-phase
  105. car smps reconfiguration
  106. paralleling film caps with electrolytic caps
  107. 130VAC@40A to 130VAC-110VAC
  108. Wiring and grounding options
  109. TL494 transformer less ps for tube amp
  110. 12KWatts PIC16F84/ADC0831 Power Inverter
  111. TL494 current control
  112. Improving a Boss CE-1 Power Supply?
  113. Easy (well not for me) Transformer Question
  114. Power load, dummy load (pic)
  115. Constant current source, am I missing anything...
  116. Should I keep these capacitors on my IEC socket?
  117. fuses for smps current protection
  118. Using Remote Sense Leads
  119. Reducing voltage of TL494 based supply?
  120. Vreg identification
  121. transformer specs
  122. Variable output SMPS
  123. Power Supply??? 12v to 20/24v? Regulated?
  124. Low Voltage (+70V) Power Supply Design
  125. Isolated voltage feedback for SMPS
  126. feedback on this tip2955/lm317 supply
  127. 12V CT push-pull series secondaries
  128. ML #23 shuts itself off after 5 seconds.
  129. Dual supply for LM1875 split supply
  130. Filtering alternator noise
  131. using a choke on a negative supply
  132. Tricky op-amp based VR problem
  133. 70V 5A symmetrical PSU HELP :D
  134. 20khz PWM @2kA, 24V
  135. 14V@ 20 Amps PSU: Smoked PCB after successful testing
  136. Need help understanding TL431
  137. A. Weekes modified Jung regulator
  138. Discrete voltage reg for SLA
  139. Help me please ......
  140. Carver Knight Shadow Power Supply
  141. Need a NTE38 sub.
  142. SMPS & SS amp
  143. cascading power supplies
  144. LM2575 for flyback?
  145. psu protection diodes - specified volatge
  146. SMPS, flyback, or vibrator - how to get 280v off of some batteries?
  147. Need help with preamp PS
  148. shunt line filter help
  149. aux. ps for laptop using SLA
  150. Help with PSU for Tri-Amp System
  151. in a CLC input supply: is it safe to use...
  152. PSU for HP 103AR Quartz Oscillator ??
  153. Favorite Threads and Posts in "Power Supplies"
  154. help with inrush limited circuit from EDN
  156. high voltage power supply
  157. Calculating Bmax and primary turns etc...
  158. sg3525 smps signal pictures
  159. DC Blocking Filter for Mains
  160. Parallel-ing Switching Power Supplies
  161. SMPS For Valve amplifiers??
  162. Please help! Isolation/balanced power question.
  163. Advice for transformer selection.
  164. Damping circuit across secondary?
  165. Power interference on DCX2496
  166. Balanced Power...
  167. ac line filter (emi/rfi) needed for linear psu ?
  168. One big transformer or several small ones. Which is better?
  169. Check my PSU design and LTspice sim
  170. H-BRIDGE , HIGH SIDE direct coupled PNP-NPN transistor driver
  171. transformer for SMPS
  172. Wiring a Step Down Transformer for Isolation
  173. 14vdc to 200vdc
  174. Unloaded LM317/337 behaviour
  175. harmer+simmons sm600
  176. Protecting a power switch from arcs
  177. filterless Peltier PWM
  178. transformer wiring
  179. transformer question (dual secs same as centre tap)
  180. rectifier diode in series with AC heating element to save energy?
  181. Exploding 7915
  182. mains regeneration
  183. A Few PSU Questions???
  184. Delay matching in IR2xxx low and high side gate drivers
  185. Browns book errors
  186. Fluke 407D Power Supply
  187. Continous Mode High Side Switch
  188. Toroidal specifications Ac Ae
  189. Floating ground power supply
  190. Magnetic shielding
  191. buck regulator
  192. High And Low Side Phototransistor Opto Mosfet Driver
  193. Question about autotransformer ( 230V to 115V )
  194. SG3525 for driving ferrite itself?
  195. power trannie
  196. High(er)-voltage, low noise v-reg?
  197. PFC question
  198. Power Supply Design
  199. LM317/LM337 accuracy
  200. PA amplifier design
  201. Dedicated PSU for DEQ/DCX2496
  202. DC/DC 12V-15V inducterless Transformer Circuit needed
  203. 12V push pull PSU. Need help.
  204. 1000w out offline flyback
  205. Supply for dual mono pre-amp
  206. Low ESR caps in SMPS
  207. Class AB Power Supply Design
  208. Linear PS help
  209. Help a dummy, save a life. PSU recycling...
  210. How can I resolve this problem ?
  211. Cases of spoiled LM338?
  212. Power Transformer for MF NuVista CD Player
  213. Image/Photo
  214. Are electrolytics evil?
  215. transformerless PSU with regulators
  216. Problems with LM78XX regulators???
  217. lowering caps ESR
  218. AC to DC circuit design
  219. tranformer wiring problem
  220. StepUp dcdc smps (car amp)
  221. Variable Pc PowerSupply (modification)
  222. 3 terminal regulator with 3 terminal shunt reference
  223. Terminals for 12V DC/DC input
  224. Building a PSU for an external firewire soundcard
  225. MOSFET driving with transformer
  226. Jung/ALW reg issues.
  227. Battery PS: Virtual ground or single supply?
  228. Easy PSU question - help me make this 12v DC power supply better.
  229. Power Supply For Pre/ Head Phone & Phantom... (PCB)
  230. What's really going on in that TL431
  231. LM350 Based Variable PSU Problem
  232. Question about PSU in seperate chassis
  233. Drivng a IGBT module
  234. HELP !!! My regulators are oscillating
  235. Question about caps on transformer primary
  236. Battery Vs conventional PSU
  237. what is the percentage of current across Ground ?
  238. LM338 current Regulator allowing modulation
  239. Super shunt regulator: dedicated plans?
  240. Equation for LM317 and LM337 +-15v
  241. Krell preamps voltage regulators
  242. linear pc power supply?
  243. Noob Transformer Question
  244. preamp supply w/ 48v power
  245. Are these caps safe?
  246. Charging batteries with a variable power supply
  247. Charging batteries with a variable power supply
  248. Battery-Powering a Trent TA-10 & a Citypulse DA2.03e
  249. Nuuk's Gainclone buffer PSU
  250. line filter design.

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