Polarisation protective circuit for DC consumer - has inversely operated MOSFET between earth input and output

摘要

The polarising circuit has a voltage input a coupled voltage output, an last input and output. Between the earth input (12) and output (13) in incorporated an inversely operated MOSFET (1), whose gate (6) is coupled to the voltage input (10). Pref. the circuit incorporates a voltage rise limiter (R1, 2), limiting a gate-source voltage to a preset steepmess. The limiter assembly (R1, 2, Z1) defines a max value of the gate-source voltage, incorporating a Ziner diode (Z1). USE/ADVANTAGE - For DC consummer appliances in car etc, with low-cost mfr and low voltage drop.