Low-grade exhaust heat is used to provide a reliable and independent power source for instrumentation circuitry by means of a thermoelectric generator (TEG). A design of a self-starting DC-DC power converter is developed and optimized for very-low-input voltages (below 300 mV) in order to allow operation at temperature differences of 20/spl deg/C and less. A prototype is built, and the results are experimentally verified.
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J.M. Damaschke (1997) studied this question.
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