Regulated voltage divider

Posted on Apr 5, 2012

ICs requiring 3 or 6 volts can be run from a battery or fixed regulated supply of a higher voltage by using the circuit shown. The transistor should be mounted on a heatsink as considerable power will be dissipated by its collector. Additional filtering can be obtained by fitting a capacitor (Cl) as shown. The capacitance is effectively multiplied by the gain of the transistor, A ripple of 200 mV (peak to peak) at the input can be reduced to 2 mV in this fashion

Regulated voltage divider
Click here to download the full size of the above Circuit.

Maximum output current depends on the supply rating and transistor type (with heatsink) - used.

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