STABILIZED TRANSFORMER OF CONSTANT VOLTAGE TO ALTERNATING VOLTAGE (VARIANTS) Russian patent published in 2007 - IPC G05F1/44 

FIELD: military engineering, possible use in night vision device for powering optical-electronic transformers.

SUBSTANCE: in the stabilized transformer of constant voltage to alternating voltage, containing transformer with primary, secondary windings and excitation winding, primary winding of which together with emitter-collector transition of generating transistor creates a serial circuit, installed between first and second clamps for connecting the power supply, outputs of secondary winding of transformer being the outlet clamps, a stabilization circuit, installed between the base of generating transistor and second clamp for connecting power source, additionally introduced are resistor, capacitor and second transistor, included in stabilization circuit, in accordance to first variant, second clamp for connecting the power supply through excitation winding and emitter-collector transition of second transistor is connected to base of generating transistor, while the base of the second transistor is connected through a resistor to first clamp for connecting the power supply and through capacitor to one of the clamps for connecting the power supply. In accordance to second variant, stabilized transformer of constant voltage to alternating voltage, containing transformer with primary and secondary windings and excitation winding, primary winding of which is connected serially to emitter-collector transition of generating transistor between the first and second clamps for connecting the power source, while outputs of secondary winding are the clamps, supporting voltage supply, installed serially with a diode, in accordance to invention, contains additionally between base of generating transistor and first clamp for connecting the power supply, a field transistor, two additional diodes, capacitor and resistor, while two same name clamps of first and second additional diodes are combined, and two opposite same name clamps are connected respectively to source and gate of field transistor, base of generating transistor through field transistor and additional diode is connected to second output for connecting power supply, first clamp of resistor is connected to capacitor, and second clamp of resistor is connected to first clamp of capacitor, second additional diode, excitation winding and capacitor form a serial closed contour.

EFFECT: increased efficiency of power supply.

2 cl, 4 dwg