Power Supplies
Electronic Circuits for Hobby and Fair Projects

Home Experiments Science Fair Projects
Electronic Circuits
C=Circuit Diagram
DIY a solar battery charger [C]
Single Pulse Voltage Multiplier [C]
A Regulated 24 Volt Output, 5 Volt Input DC To DC Converter [C]
Gyrator Circuit [C]
L200 Power Supply [C]
Increasing Regulator Current [C]
Logic PSU with Overvoltage Protection [C]
Variable PSU [C]
Basic UPS [C]
9 Volt 2 Amp PSU [C]
Current Limiting Power Supply [C]
Power Supply Voltage Indicator [C]
Small Variable power Supply [C]

Universal PSU [C]
Add-On Current Limiter for Power Supplies [C]
1.3 Volt Power Source [C]
Adjustable Power Supply with Charger Output [C]
Unregulated Power Supply [C]
Transformerless Power Supply [C] [C] [C] [C]
Regulated Power Supply [C] [C] [C] [C] [C]
Over / Under Voltage Cut-Out Power Supply [C]
High and Low Voltage Cutout with Delay and Music Power Supply [C]
High Voltage, Low Current Supply [C]
12 Volt 30 Amp Power Supply [C]

Dual Polarity Power Supply [C]
Simple Car Battery Charger [C]
Nicad Battery Charger [C]
Negative Supply From Single Positive Supply [C]
Logic Power Supply [C]
Universal DC-DC Converter [C]
Power Supply Failure Alarm [C]
12 Volt DC to 120 Volt AC Inverter [C]
Useful Links
Electrical Safety [R] [R]
Electronics Project Books


Electronic Circuits
Lights & LEDs
Sound Effects
Cars & Motorcycles
Computers / PC
Detectors & Sensors
Electronics Games
Audio & Sound
Clocks & Counters
Power Supplies
Control & Interface
Test Equipment

Electronics Discoveries and Inventions
Heinrich Hertz: Radio Waves
Guglielmo Marconi: Radio
Radio and Wireless Patents
Bell: Telephone Invention
The Invention of the Transistor
Konrad Zuse: Relay Computer
The Oil-Drop Experiment

Electricity Projects Famous Electro Scientists

My Dog Kelly

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Last updated: January 2017
Copyright 2003-2017 Julian Rubin