Proportional integral cooling device controller for electronic device

An electronic device, comprising:

• a heat producing component having a component temperature;
• a cooling device having a cooling rate and a rate of change of the cooling rate;
• a temperature sensor for sensing the component temperature of said heat producing component;
• a heat dissipation structure thermally coupled to said heat producing component and to said cooling device, wherein said component temperature exhibits a lag time from said rate of change of the cooling rate of said cooling device;
• and
• control circuitry connected to said temperature sensor and said cooling device, said control circuitry varying the cooling rate in a manner which cancels out the lag time during a change from a steady state condition of the component temperature, wherein during the steady state condition of the component temperature, the cooling rate of said cooling device varies in proportion to variation in sensed component temperature.