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

1989-08-14

1992-11-17

Beha, Jr., William H.

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

323271, 323351, H02M 3155

Patent

active

051646560

ABSTRACT:
The switching power supply has sinusoidal or constant input current. The latter one results in best possible line and component utilizations at any time. The switching power supply comprises a first capacitor for storing a base voltage and second capacitor for storing output voltage. A first inductor is coupled between a first terminal and ground. A second inductor is coupled between a second and third terminals. A first switch selectively applies input voltage to the second terminal. A second switch selectively applies the base voltage to the third terminal. A first and second diodes are coupled to the first terminal and further respectively to the second terminal and first capacitor. A third and fourth diodes are coupled to the second capacitor and ground respectively. The third and fourth diodes are further separately coupled to the second and third terminals in either order.

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