Voltage stabilizer, 20 volts 7 amps. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Surge Protectors
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The voltage stabilizer (Fig. 3.24) is distinguished by a low voltage drop (and, accordingly, power) - only 1,5..7 V at a load current of up to 8 ... XNUMX A. It is designed to be powered from the on-board network of car radio audio complexes . Its use not only reduces the level of interference penetrating the sound channels, but also protects the radio equipment from voltage surges when the starter is turned on / off, etc.
The output voltage is regulated by a resistor PR1, and the transistor VT2 must be installed on a radiator with an area of 15 ... 20 cm2.
Author: Semyan A.P.
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