David Broadcast Electronics

AUTOMATIC DOORBELL USING OBJECT DETECTION

POWER SUPPLY AND FINAL PCB

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POWER SUPPLY AND FINAL PCB
POWER SUPPLY AND PCB ASSEMBLY Automatic door bell runs on power supply 8V DC using 7808 voltage regulator. The AC to DC is full wave rectifier circuit comprising of bridge diodes (1N4007) and 4700uF/25V filtering capacitor. Now the circuit is assembled on a PCB and then attaches to a main door entrance. The prototype PCB boards are shown above;
Posted by David Kwaku Celestin on April 19, 2015 Full Size| Slideshow

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