PULSE VOLTAGE STABILIZER WITH OVERLOAD PROTECTION Russian patent published in 2020 - IPC H02M3/156 G05F1/569 

FIELD: electrical engineering.

SUBSTANCE: present invention relates to electrical engineering and can be used in designing power supply units of radio equipment and adjustable microelectric drives of direct current. Pulse voltage stabilizer with protection against current overload contains: control transistor, collector connected to input of LCD-filter, power transistor emitter is combined with input terminal, voltage comparator, inverting input of which is combined with output of resistive voltage divider, which first output is combined with common power bus, and its second output is connected through series-connected diode and second throttle to power transistor collector, a second capacitor connected by its first output to a second output of the resistive voltage divider and a second to a common power bus, the non-inverting input of the voltage comparator is connected to the delay element formed by the third capacitor and the resistor, the third capacitor is connected by its first output to the common power bus, and its second output is combined with the non-inverting input of the voltage comparator and the first output of the resistor, which by its second output is connected to the input terminal through the voltage limiter.

EFFECT: higher reliability of operation and efficiency due to elimination of power losses in power transistor.

1 cl, 2 dwg, 1 tbl