CONSTANT VOLTAGE STABILIZER Russian patent published in 2008 - IPC G05F1/56 

FIELD: electricity.

SUBSTANCE: in a constant voltage stabilizer that includes control transistor (1), DC amplifier transistor (2) of opposite conductivity type, stabilitron (3), voltage divider based on resistors (4, 5), startup transistor (8), second resistor (9) and third resistor (12) (R), and diode (11), according to an aspect of the present invention the emitter of said startup transistor (8) is connected to input pin, the collector of said startup transistor is connected to output pin via the second resistor R (9), and the base of said startup transistor is connected to common bus via serial RC-circuit, at that, the point of connection of R (6) and capacitor (7) of the serial RC-circuit is connected to output pin via diode (11). This allows for improvement of performance reliability due to shorter time of startup capacitor (7) discharge.

EFFECT: improvement of reliability of stabilizer startup at short-term dropout of input voltage.

2 dwg