This is a design simple voltage regulator power supply. This circuit can be used to power the two way mobile radio from the car cigarette lighter circuit. The circuit is based on LM317 IC as regulator voltage and should accept up to about 14 volts without problems. It can handle up to 1 amp, but this circuit will need a heat sink on the voltage regulator. This is the figure of the construction circuit.
This circuit needs some component in this list:
R1: 270R
R2: 2K Cermet or carbon preset potentiometer
C1: 100nF
C2: 1uF tantalum
LM317T Voltage regulator Heat sink
PCB board
In this circuit added DC power jacks for input and output on my voltage regulator, a green power LED, and a red over-voltage LED. The over voltage LED uses a zener diode to switch on the LED at a certain preset voltage, this can be varied depending on the voltage of the zener diode, I used a 6.2v zener diode. You can even add a relay to switch off the power if the over voltage LED turns on, but bear in mind it will have to work from the voltage of the zener diode right up to the input voltage.
This circuit needs some component in this list:
R1: 270R
R2: 2K Cermet or carbon preset potentiometer
C1: 100nF
C2: 1uF tantalum
LM317T Voltage regulator Heat sink
PCB board
In this circuit added DC power jacks for input and output on my voltage regulator, a green power LED, and a red over-voltage LED. The over voltage LED uses a zener diode to switch on the LED at a certain preset voltage, this can be varied depending on the voltage of the zener diode, I used a 6.2v zener diode. You can even add a relay to switch off the power if the over voltage LED turns on, but bear in mind it will have to work from the voltage of the zener diode right up to the input voltage.
nice circuit, working cute...
ReplyDeletewonderful circuit for marine application for voltage drop issue in LED lighting
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