 Fuse Monitor - Alarm
This device monitors a fuses in your circuits. LED turns on when fuse is blown.
Rectification using a Gyrator Circuit
Current rectifier for large loads without large capacitors. It uses transistor 2N3055 as an active component.
Variable Power Supply
Using the versatile L200 voltage regulator, this power supply has independent voltage and current limits. Voltage output from about 3 to 15 volts.
Fast Electronic Fuse
This circuit is based on simple Ohms law. It uses voltage drop on a resistor to determine current strength and turns device off if it's to high. Circuit is designed to operate on 230V. threshold current is adjustable.
Soft Start PSU
Two soft start power supply.
12 Volt 30 Amp PSU
12 Volt 30 Amp power supply unit circuit diagram
13 Volt 20 Amp PSU
This is a Regulated DC power supply with short circuit protection and with current limiter. It delivers safely around 20Amps at 13.8V
High Current Power Supply
High current power supply circuit diagram with 2n3055. Voltage is stabilised.
Dual Polarity Power Supply
This dual polarity power supply is easy to build, requires few parts, and is adjustable from 0-15 volts.
Portable CD Player Adapter For Car
Portable CD Player Adapter For Car. Changes 12V voltage from your car, to 9 or less volts for cd player or some other device.
6V to 12V Converter
This inverter circuit can provide up to 800mA of 12V power from a 6V supply
Transformerless Power Supply
This supply uses no heavy step down transformer and has an extremely low parts count.
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