PULSE POWER CONVERTER CONTROL SYSTEM IN MEDIUM CURRENT MODE Russian patent published in 2023 - IPC G05F1/56 

FIELD: electrical engineering.

SUBSTANCE: in the control system of a switching power converter in the medium current mode, containing a pulse-width modulator electrically connected by a driver with the gate of a power field-effect transistor, the first and second operational amplifiers, resistors and a current sensor for measuring current in the inductor of the switching power-down converter, outputting a signal corresponding to the current in the inductor of the switching power buck converter, together with the integrating current and voltage RC feedback circuits to form an integrated error signal supplied to the modulator, which controls, together with a current sensor for measuring the current in the inductor of a pulsed power downconverter, a switching device that, together with the inductor of a pulsed power downconverter, forms an electrical circuit of a pulsed power downconverter, a step-down resistor, a third operational amplifier and a diode are additionally introduced, forming a multiplexer for forced switching between current and voltage stabilization modes, functioning as a follower with an open diode, while a reference signal corresponding to a given current limit value is applied to the input of the multiplexer, 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 the multiplexer is electrically connected to the input of the first operational amplifier, while the output of the first operational amplifier is electrically connected in series with the voltage subtraction device, the second pulse-width modulator, the second driver and the second field-effect transistor, additionally introduced int the control system, through the connection point of the inductor and the second field-effect transistor with the second power diode and smoothing capacitor, and the inductor and the second field-effect transistor, the second power diode and the smoothing capacitor are connected with the possibility of forming a power electric circuit of increasing voltage.

EFFECT: increasing the stability of the power converter control system when charging the battery both in terms of voltage and current with increased efficiency in a wide range of voltages, conversion factors and power levels of the pulsed power converter while improving the transient response with a sharp change in the operating mode.

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