The purpose of the circuit of figure 1 is simply to obtain a voltage of 6 V for powering portable equipment from the automotive battery. The maximum current is 1 A and connection plugs with correct polarity should be used.

    The capacitor C1 must have a working voltage of at least 16 V and the integrated circuit must be mounted on a heatsink.

 


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In figure 2 we have the printed circuit board for the assembly of the gear unit. We recommend that it be enclosed in a plastic box.

 


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Material list

 

CI-1 - 7806 - integrated circuit

C1 - 1000 uF x 16 V - electrolytic capacitor

C2 - 10 uF x 12 V - electrolytic capacitor

F1 - 2 A - fuse

Several:

Printed circuit board, wires, solder, heat radiator for the integrated circuit, etc.