Control circuit for electric blanket

Abstract

The present disclosure relates to a control circuit for an electric blanket. The control circuit includes a main control circuit composed of a relatively low voltage power conversion circuit, a heating main loop, a micro control unit (MCU) main control circuit, an active/passive protection circuit and a main power carrier serial port circuit. The control circuit further includes a sub-control circuit. The sub-control circuit is composed of an auxiliary power carrier serial port circuit, a sub-control power extraction circuit, an MCU sub-control circuit, a function key input circuit and a display circuit. The main control circuit and the sub-control circuit exchange operating state information and user control information through the main power carrier serial port circuit and the auxiliary power carrier serial port circuit to implement heating control of the electric blanket in a mutually cooperative control mode.

Dependencies are inferred from the claim text.