Full shunt boost switching voltage limiter for solar panel array

Details Full shunt boost switching voltage limiter for solar panel array Full shunt boost switching voltage limiter for solar panel array

1993-11-26

1996-04-02

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323906, G05F 144

Patent

active

055044182

ABSTRACT:
According to the present invention a bus voltage limiter is connected between a photovoltaic solar panel array and a load to limit the output voltage to a fixed dc reference voltage. The limiter includes a pulse width modulator which controls the duty cycle of a power switch from 0% to 100% to maintain a substantially constant output voltage V.sub.ref. A coupled inductor type boost DC to DC converter includes a pair of main windings which cooperate with the duty cycle modulated power switch to provide the output voltage. An auxiliary winding provides input ripple current cancellation in conjunction with a second inductor and a dc blocking capacitor.

REFERENCES:
patent: 4357524 (1982-11-01), Apfelbeck et al.
patent: 4713742 (1987-12-01), Parsley
patent: 4785226 (1988-11-01), Fujisawa et al.
patent: 5383109 (1995-01-01), Maksimovic et al.

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