Temperature share scheme

In a circuit wherein two or more power converters are coupled in parallel to provide output power to a single load, a temperature control system for maintaining the temperature of each power converter at approximately the average temperature of the power converters, comprising:

• detection means, coupled to each power converter, for detecting the temperature of said power converter and for generating a measurement signal that is a function thereof;
• means for generating a reference signal that is a function of each said measurement signal;
• and
• control means, responsive to said reference signal, for adjusting the output power of each said power converter such that the temperature of each said power converter approximates the average temperature of the power converters, said control means including means responsive to the measurement signal of each said power converter for adjusting the output power of that respective converter as a function of the difference between said connected measurement signal and said reference signal.