-
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Power Supply
Paralleling LM317 regulators for higher current, using TL431 reference for excellent performance
TL431 provides accurate, adjustable voltage crowbar function for circuit overvoltage protection
Good for low-drop diode applications, such as blocking battery back-charging or brownout protection
LM317 circuit requires only 3 added transistors to allow zero to maximum current-limit adjustment.
switching dc to dc converter
LM317 supply with switching tracking prereg for good efficiency and minimal heat sink requirements.
Presented here is a significant step forward in simple, cheep, and efficient boost converter design
Output of a typical buck switching regulator is externally adjusted from 0V to full-scale.
Three-transistor current limit has low voltage drop and adjusts to zero current out
A Small and efficient DC to DC Step Down (Buck) Converter
Simple, efficient, lead-acid battery charger auto switches from CC to CV mode
Minimal circuit for auto CC/CV charging. Option allows pot adjustment of charge current.
Two simple high-side sense current limit circuits adjust to zero current and have low voltage drop
Simple 15V, 1.5A, CC/CV Bench Power Supply Circuit - (With Optional Laptop Charger Source)
2018-02-05
Inexpensive, single regulator IC power supply with I and V adj. to zero, includes I & T monitors
Lead-acid battery charger starts with constant-current and ends with constant-voltage trickle charge
Triple Output Tracking Power Supply Uses Standard 3-Terminal Regulators, Adjusts to Zero Out
2017-03-09
Single +output plus dual +/- tracking output supply using common 3-terminal regulators goes to 0V.
Efficient MOSFET Bridge Rectifier for Resistive Loads, Or Input Power Auto Polarity Gating
2017-03-07
MOSFET bridge for efficient resistive load rectification, or indifference to input power polarity.
PWM allows easy control of linear regulator output voltage for μP based power supplies
Constant-current hysteretic buck regulator supply for high power LEDs, efficiency of 90%
Latest threads
-
We Invented and Confirm Tested a Solid State Zero Point Energy Generator
- Started by inventoratorspace
- Replies: 10
-
-
-
-
