VOLTAGE CONVERTER WITH SEPARATE CIRCUITS OF COMBINED CONVERSION Russian patent published in 2017 - IPC H02M3/158 H02M1/88 G05F1/565 

FIELD: electricity.

SUBSTANCE: voltage converter (100) with the separate circuits of the combined conversion includes an undervoltage circuit and a booster voltage circuit (110) and a control unit (120, 200) for controlling the down-and-up converter. The down-and-up converter comprises an undervoltage circuit with the first set of switches (SW3, SW4) and a booster voltage circuit with the second set of switches (SW5, SW6). Controlling the undervoltage circuit and the booster voltage circuit can be performed independently of each other. The control unit is adapted to control the voltage supply from the voltage converter to the load (20) through the undervoltage circuit in the undervoltage mode by controlling the switching operations of the first set of switches and to control the power supply from the voltage converter to the load through the booster voltage circuit in the booster voltage mode by controlling the switching operations of the second set of switches.

EFFECT: increasing converter efficiency over a wide range of the input and output voltages in various applications.

15 cl, 6 dwg