SMALL-SIZED PULSE-WIDTH MODULATOR RESISTANT TO IONISING RADIATION Russian patent published in 2015 - IPC H03K3/02 

FIELD: electricity.

SUBSTANCE: invention relates to facilities for formation of secondary power supplies (SPS) of the equipment of control systems of space-rocket and aircraft engineering items, and also robotic complexes. In the modulator the high-voltage output of the power unit is connected to the power input of the parametrical shaper of output impulses, to the first and the second inputs of the feedback signal amplification unit the error signals formed by the respective power supply feedback are supplied. The power unit consists of the switching unit, the control unit, the low-voltage power supply unit, the reference-voltage source, the high-voltage power supply unit, and the saw-tooth generator in turn consists of the trigger, the offset unit, DC generator, the frequency setting unit. Note that DC generator and the trigger of saw-tooth generator, and also DC generator of dead time shaper are implemented resistant to ionising radiation.

EFFECT: increase of resistance to ionisation radiations.

9 cl, 13 dwg