PUSH-PULL DC CONVERTER Russian patent published in 2010 - IPC H02M7/538 

FIELD: electricity.

SUBSTANCE: device comprises DC voltage source, two main transistors, emitters of which are connected to one pole of source, transformer, primary winding of which is equipped with terminal from the middle point, connected to the second pole of power supply source, and its two clamps are connected accordingly to collectors of these transistors, feedback chain made of feedback winding connected serially to capacitor, two resistors, every of which is connected to the second pole of power supply source by one clamp. It is equipped with two additional resistors and transistors of the same type, emitter of every one is connected to base of the main transistor, and collector of each of these transistors is connected to the main transistor. One of feedback chain clamp and additional resistor is connected to base of each of those transistors.

EFFECT: increased capacity of converter.

2 dwg