Patent ID: 8263911

Claim:
An electronic device comprising: a control module having a plurality of control pins, the control module providing a first control signal and a second control signal via the control pins, respectively; a heating protection circuit coupled with the control pins of the control module for receiving the first control signal and the second control signal, the heating protection circuit generating a third control signal according to the first control signal and the second control signal; a heating module; and a heating switch module coupled with the heating protection circuit and the heating module, the heating switch module receiving the third control signal and controlling the heating module whether to heat according to the third control signal; wherein the heating protection circuit includes a heating protection unit coupled with the control module and the heating switch module, and the heating protection unit receives the first control signal and the second control signal from the control module and generates the third control signal according to the first control signal and the second control signal thus to transmit the third control signal to the heating switch module; wherein the heating protection unit is a metal-oxide-semiconductor field-effect transistor (MOSFET) and has a first pin, a second pin, and a third pin, the first pin and the second pin are coupled with the control module, the third pin is coupled with the heating switch module, the heating protection unit receives the first control signal and the second control signal from the control module via the first pin and the second pin, respectively, and the heating protection unit transmits the third control signal to the heating switch module via the third pin.