ADJUSTABLE STEP-UP DC VOLTAGE CONVERTER Russian patent published in 2020 - IPC H02M3/18 

FIELD: physics.

SUBSTANCE: invention relates to conversion equipment and can be used in designing small-size and energy-efficient multilevel step-up DC voltage regulators. Adjustable step-up DC voltage converter comprises input, output and common terminals for connection of constant voltage source, output capacitor, n parallel connected circuits connected between input and common leads, consisting of series-connected charging diode, capacitor, reactor and charging switch. Converter also includes n-1 digit keys, each of which is connected between connection point of reactor and charging switch of previous chain and connection point of charging diode and next chain capacitor, discharge switch connected between input terminal and connection point of reactor and charge switch of last circuit, discharge diode connected between connection point of charging diode with first circuit capacitor and output terminal. Converter includes two-level pulse-width constant voltage controller (19), between output terminal of which and common terminal load (20) is connected, additional output capacitor (16), connecting additional output and common leads of converter, additional discharge diode (14), connected between connecting point of charging diode and second chain capacitor and additional output terminal, wherein converter output pins are connected to input terminals of two-level pulse-width controller.

EFFECT: technical result of disclosed invention is expansion of functional capabilities of converter, since along with discrete control converter is able to implement and linear energy-efficient smooth adjustment of output voltage.

1 cl, 1 dwg