US 6,981,381 B1 | ||
Linear thermoelectric device driver | ||
Ching Wang, Austin, Tex. (US); Robert M. Bartel, Hillsboro, Tex. (US); and Hans W. Klein, Danville, Calif. (US) | ||
Assigned to Lattice Semiconductor Corp., Hillsboro, Oreg. (US) | ||
Filed on Dec. 16, 2003, as Appl. No. 10/737,514. | ||
Int. Cl. F25B 21/02 (2006.01) |
U.S. Cl. 62—3.2 | 19 Claims |
1. A circuit comprising:
a comparator operable to receive an input signal and a reference signal and to provide an output signal to at least one of
a first switch and a second switch coupled to a thermoelectric cooler;
a first amplifier operable to receive the input signal and an error signal and to provide a control signal to a third switch
coupled to the thermoelectric cooler; and
a second amplifier operable to receive an inverse of the input signal and the error signal and to provide a control signal
to a fourth switch coupled to the thermoelectric cooler.
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