H - Electricity – 02 – M
Patent
H - Electricity
02
M
322/1
H02M 3/10 (2006.01) H02J 7/35 (2006.01)
Patent
CA 1248174
PARTIAL SHUNT SWITCHING LIMITER FOR A SPACECRAFT SOLAR-PANEL OR LIKE POWER-SOURCE ARRAY ABSTRACT OF THE DISCLOSURE This regulating system for an array of solar panels or the like consists of a tap connection into the array, and a boost switching regulator connected to the tapped array. The tap connection divides the array into first and second portions, and the switching regulator is connected so that its power-input terminals are across only one of the two portions of the array. The power-output terminals of the switching regulator are connected across the load (i.e., across the entire array), and the sensing or feedback terminals of the regulator receive a signal which acts as a measure of voltage or current at the load. Boost regulators do not dump overvoltage into a dissipative load; hence the invention prevents local heat generation and resulting spacecraft heat-balance problems of conventional dissipative regulators. Furthermore, in the circuit of the present invention, negligible power flows through the regulator at the end of the solar-panel useful life; hence efficiency losses in the boost regulator itself are avoided when power is at its greatest premium.
517222
Ahrens Allan F.
Martinelli Robert M.
Hughes Electronics Corporation
Sim & Mcburney
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