Circuit for compensating for output of high frequency induction heating cooker

A circuit for compensating for the output of a high frequency induction heating cooker, comprising:

• rectifying means for rectifying an external AC input power into a DC power and applying the DC power to a working coil;
• input current detecting means for generating a voltage proportional to a current of the AC input power;
• output regulation signal generating means, responsive to the input current detecting means, for comparing the generated voltage from said input current detecting means with an output regulation voltage which is regulated by the user and for generating an output regulation signal in accordance with the compared result;
• start driving means, responsive to the input current detecting means, for comparing the detected voltage from said input current detecting means with a predetermined cooker discrimination reference voltage and generating a start drive voltage in accordance with the compared result;
• triangular wave generating means, responsive to said working coil, for being triggered in response to a driven state of said work coil to generate a triangular wave signal;
• switching means for start-driving said working coil in response to the start drive voltage from said start driving means, comparing the output regulation signal from said output regulation signal generating means with the triangular wave signal from said triangular wave generating means and switching the driving of said working coil in accordance with the compared result;
• voltage detecting means for detecting a voltage being applied from said rectifying means to said working coil and inversion-amplifying the detected voltage;
• output control means for generating output regulation data according to a user's selection;
• and
• voltage dividing means for dividing an output voltage from said voltage detecting means according to the output regulation data from said output control means and outputting the divided voltage as the output regulation voltage to said output regulation signal generating means.