Switching power supply with constant or sinusoidal input current

Details Switching power supply with constant or sinusoidal input current Switching power supply with constant or sinusoidal input current

1989-12-01

1992-10-13

Wong, Peter S.

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

323266, 323267, 323271, 363 16, 363 48, 363 89, G05F 156, H02M 3335

Patent

active

051554305

ABSTRACT:
The switching power supply has high output power and high efficiency. The input voltage may be AC or DC. The input current may be constant or sinusoidal, output voltage fixed or variable. Smallest possible peak currents of switches result in best possible line and component utilizations at any time. In particular, inrush and surge currents are eliminated. A diode applies the input voltage to the output. A capacitor is coupled to the input for storing a base voltage. A switch selectively couples the capacitor to the output. A converter is used to convert the output voltage into the base voltage. The load is coupled to the output and further to the input or ground. A filter can be used to reduce output ripple voltage.

REFERENCES:
patent: 4502104 (1985-02-01), Mitchell
patent: 4533986 (1985-08-01), Jones
patent: 4692851 (1987-09-01), Attwood
patent: 4729081 (1988-03-01), Nilssen
patent: 4831508 (1989-05-01), Hunter

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