HEAT CONTROL DEVICE OF HEAT GENERATING GLASS

Provided is a heat control device of a heat generating glass, which supplies a sine wave signal for controlling temperature of the heat generating glass according to a size of the heat generating glass, so that the sine wave signal is input at a point of time when the current of the sine wave signal is zero and also the supply of the sine wave signal is stopped at the point of time when the current of the sine wave signal is zero. Herein, the sine wave signal is supplied to the heat generating glass so as to control the power supply considering to the load of the heat generating glass, and a zero point of the sine wave signal is detected using a phase detection part, and a heat control part generates a control signal so that the sine wave signal is input at a point of time when the current of the sine wave signal is zero and also the supply of the sine wave signal is stopped at the point of time when the current of the sine wave signal is zero, and then transfers the control signal to a driver circuit, and the sine wave signal supplied from a power source part is supplied through the driver circuit to the heat generating glass, and each sine wave signal supplied to each heat generating glass may be supplied with a different supplying period.