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Power Supply circuits diagram electronics projects

Power Supply circuits diagram electronics projects: battery chargers, switching power supply , ac power supply, dc dc converters, power inverter, converters and power adapters .

Cm1117 voltage regulator

Using Cm1117 voltage regulator manufactured by Champion we can make a adjustable or fixed power supply with a maximum output current around of 1 ampere .

NCP1654 controller for Continuous Conduction Mode

NCP1654 controls the power switch conduction time (PWM) in a fixed frequency mode and in dependence on the instantaneous coil current.

LM317 power supply ( 1.2- 30 volts )

This Power supply circuit is based on lm317 IC circuit . This LM317 power supply can deliver high current (around 5 amps) and variable output voltage . The led D3 mounted on pin 6 at lm301 lights in constant current mode . Current limit can be adjusted using R2 potentiometer and the output voltage can be adjusted from 1.2 volts to 30 volts using R8 potentiometer . Input voltage for this LM317 variable power supply must be around 35 volts .

For this variable power supply circuit you need to use LM317K circuit (in to3 package ) which must be mounted on a heatsink .

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