PULSED POWER STEP-DOWN CONVERTER CONTROL SYSTEM IN MEDIUM CURRENT MODE Russian patent published in 2022 - IPC G05F1/565 H02M1/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, namely: to the field of converting electrical engineering, in particular to control systems of pulse power converters by controlled voltage and current, and can be used for power supply of various devices in many fields of technology, for example in powerful pulse step-down converters used to charge the accumulator battery on-board an aircraft with a hybrid power plant, as well as in secondary power supply sources of equipment and functional equipment of aircraft with stabilized voltage and limit current at load. Technical result is achieved by the fact that control system of pulsed power down converter in medium current mode, containing first and second operational amplifiers, resistors and a current sensor for measuring current in an inductor of a pulsed power down converter, outputting signal corresponding to current in inductor of pulsed power down converter, together with integrating RC circuits of current and voltage feedback to form integrated error signal, supplied to the modulator, which controls, together with the current sensor to measure the current in the inductor of the pulsed power down converter, the switching device, which together with the inductor of the pulsed power down converter forms an electrical circuit of the pulsed power down converter, additionally, a step-down resistor, a third operational amplifier and a diode are introduced, which form a forced switching multiplexer between current and voltage stabilization modes, which functions as a follower when the diode is open, wherein to the input of the multiplexer a reference signal corresponding to a given current limit value is supplied, the second input of the multiplexer is electrically connected to the output of the second operational amplifier and the input of the first operational amplifier, and the output of the multiplexer is electrically connected to the input of the first operational amplifier.

EFFECT: increased stability of operation of the power converter control system when charging the storage battery both in terms of voltage and current, while ensuring high ratio of power of the converter to its weight and its high efficiency.

3 cl, 2 dwg