SWITCHING CIRCUIT POWER SUPPLY SCHEME Russian patent published in 2015 - IPC H02M7/06 

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering. In order to reach technical result to supply switching circuits (2) there are the first power supply modes to receive the first values of input power from the power supply units (7) and the first values of output power to the output circuits (5) comprising control sections (3) of the switching circuits (2) and there are the second power supply modes to receive the second values of input power and the second values of output power. The first values of output power are bigger than the second values of output power. The second values of input power are more than zero and less than the values of power reswitching, which are required for operation of the switching circuits (2). The switching circuits (2) may include relays to reswitch loads (8). The first values of input power may come through the main relay contacts. The switches (47) may reswitch levels of output signals. The relays may be two-position relays.

EFFECT: improving power efficiency.

15 cl, 8 dwg