PULSE MODULATOR OF CONSTANT VOLTAGE Russian patent published in 2000 - IPC

FIELD: electrical engineering. SUBSTANCE: proposed pulse modulator of constant voltage can be used in devices which adjust value of constant voltage of final stages of transmitters in systems of three-program wire broadcasting. Pulse modulator of constant voltage includes two- winding choke, adjusting transistor, blocking diode, blocking capacitor, output capacitor, load, pulse-width modulator, resistive current pickup, external feedback circuit of filtering type, summing amplifier of feedback, input voltage divider, internal voltage divider and circuit made up of resistor and reference element connected in series. EFFECT: increased functional reliability by provision of stable operation of modulator with simultaneous rise of quality of adjustment of output voltage. 1 cl, 3 dwg