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Power Supply

Top Articles

  1. LM317 Adjustable 20V, 1.5A Supply with Simple SMPS Tracking Preregulator crutschow
    LM317 supply with switching tracking prereg for good efficiency and minimal heat sink requirements.
  2. "The Scavenger" A Joule Thief inspired Boost regulator. ()blivion
    Presented here is a significant step forward in simple, cheep, and efficient boost converter design
  3. Swinear Power Supply ronv
    Higher power linear regulator
  4. Simple & Inexpensive Ideal-Diode MOSFET Circuit crutschow
    Good for low-drop diode applications, such as blocking battery back-charging or brownout protection
  5. Lead-Acid Battery Charger, 12V 6A, Using Hysteretic SMPS Circuit With Auto Float Charge crutschow
    Simple, efficient, lead-acid battery charger auto switches from CC to CV mode
  6. Low-Dropout CC/CV 12V Lead-Acid Battery Charger With Auto Trickle-Charge crutschow
    Minimal circuit for auto CC/CV charging. Option allows pot adjustment of charge current.
  7. Low Drop, High-Side Sense Current Limiter Adjusts to Zero crutschow
    Two simple high-side sense current limit circuits adjust to zero current and have low voltage drop
  1. crutschow

    Lead-Acid Battery Charger, 12V 6A, Using Hysteretic SMPS Circuit With Auto Float Charge

    Simple, efficient, lead-acid battery charger auto switches from CC to CV mode
    0/5, 0 votes
    Updated:
    May 3, 2018
  2. crutschow

    Low-Dropout CC/CV 12V Lead-Acid Battery Charger With Auto Trickle-Charge

    Minimal circuit for auto CC/CV charging. Option allows pot adjustment of charge current.
    0/5, 0 votes
    Updated:
    Mar 11, 2018
  3. crutschow

    Low Drop, High-Side Sense Current Limiter Adjusts to Zero

    Two simple high-side sense current limit circuits adjust to zero current and have low voltage drop
    0/5, 0 votes
    Updated:
    Mar 8, 2018
  4. crutschow

    Simple 15V, 1.5A, CC/CV Bench Power Supply Circuit - (With Optional Laptop Charger Source)

    Inexpensive, single regulator IC power supply with I and V adj. to zero, includes I & T monitors
    0/5, 0 votes
    Updated:
    Feb 6, 2018
  5. crutschow

    Simple & Inexpensive Ideal-Diode MOSFET Circuit

    Good for low-drop diode applications, such as blocking battery back-charging or brownout protection
    4/5, 1 vote
    Updated:
    Sep 19, 2017
  6. crutschow

    LM317 CC/CV 12V Lead-Acid Battery Charger With Automatic Trickle Charge

    Lead-acid battery charger starts with constant-current and ends with constant-voltage trickle charge
    0/5, 0 votes
    Updated:
    Jun 18, 2017
  7. crutschow

    Triple Output Tracking Power Supply Uses Standard 3-Terminal Regulators, Adjusts to Zero Out

    Single +output plus dual +/- tracking output supply using common 3-terminal regulators goes to 0V.
    0/5, 0 votes
    Updated:
    Mar 9, 2017
  8. crutschow

    Efficient MOSFET Bridge Rectifier for Resistive Loads, Or Input Power Auto Polarity Gating

    MOSFET bridge for efficient resistive load rectification, or indifference to input power polarity.
    0/5, 0 votes
    Updated:
    Mar 8, 2017
  9. crutschow

    PWM Voltage Control Of Standard Linear IC Regulators

    PWM allows easy control of linear regulator output voltage for μP based power supplies
    0/5, 0 votes
    Updated:
    Feb 14, 2017
  10. crutschow

    Simple, Efficient, Inexpensive, High-Power LED Constant-Current Switching Supply

    Constant-current hysteretic buck regulator supply for high power LEDs, efficiency of 90%
    0/5, 0 votes
    Updated:
    Jan 25, 2017
  11. crutschow

    MOSFET Bridge Rectifier With Low Forward Drop, Works With Capacitive Output

    MOSFET Bridge Rectifier gives high efficiency for low voltage, high current AC-DC supplies
    0/5, 0 votes
    Updated:
    Jan 17, 2017
  12. spec

    LINEAR POWER SUPPLIES: THEORY & CIRCUITS

    Linear power supply core theory plus circuits that can be adapted to suit your application
    0/5, 0 votes
    Updated:
    Jan 10, 2017
  13. spec

    Precision Micropower Battery Cut-off Circuit

    Simple micropowr circuit to protect batteries from under voltage
    0/5, 0 votes
    Updated:
    Nov 23, 2016
  14. spec

    Standard Three Terminal Regulator Adjusts Down to Zero Volts

    A simple circuit to get down to zero volts with a standard three terminal regulator
    0/5, 0 votes
    Updated:
    Nov 20, 2016
  15. crutschow

    Two Different Full-wave Rectified Voltages From Center-tapped Transformer and Bridge Rectifier

    Two voltages, one twice the other, require only a center-tapped transformer and bridge rectifier
    0/5, 0 votes
    Updated:
    Aug 1, 2016
  16. crutschow

    Electronic DC Fuse - Simple Two Transistor Circuit

    Electronic Fuses eliminate fuse replacement and current-limit short-circuit power dissipation
    0/5, 0 votes
    Updated:
    Apr 7, 2016
  17. spec

    Main-Slave Controller

    Circuit to turn a secondary device on automatically when the main device operates.
    0/5, 0 votes
    Updated:
    Dec 9, 2015
  18. Willen

    The simplest constant current limiter with 'load indication'

    A very simple constant current limiter circuit with a tricky load indicator
    0/5, 0 votes
    Updated:
    Sep 2, 2015
  19. crutschow

    Dual Regulated Supply from Single Voltage

    Dual +/- Regulated Supply from Single Floating Voltage source Using Two Identical Regulators
    0/5, 0 votes
    Updated:
    Jun 23, 2015
  20. crutschow

    LM317 Adjustable 20V, 1.5A Supply with Simple SMPS Tracking Preregulator

    LM317 supply with switching tracking prereg for good efficiency and minimal heat sink requirements.
    5/5, 1 vote
    Updated:
    Apr 14, 2015
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