Start circuit for a switched mode power supply

Details Start circuit for a switched mode power supply Start circuit for a switched mode power supply

1992-08-03

1994-01-25

Sterrett, J. L.

Electric power conversion systems

Current conversion

With starting arrangement

323222, 323901, H02M 7517

Patent

active

052821269

ABSTRACT:
A circuit arrangement, which includes a switched-mode power supply energized by a source and which is controlled by a control circuit. The switched-mode power supply supplies the control circuit with energy during operation. The circuit also comprising a starter circuit for applying a supply current to the control circuit when the arrangement is put into operation. A particularly simple and inexpensive construction is obtained in that the starter circuit comprises a capacitive voltage divider which is fed directly by the source and is provided with a tapping wherefrom the supply current is derived via a rectifier element.

REFERENCES:
patent: 4695936 (1987-09-01), Whittle
patent: 4801887 (1989-01-01), Wegener
patent: 4864485 (1989-09-01), Rilly et al.
patent: 4887199 (1989-12-01), Whittle
patent: 4910654 (1990-03-01), Forge
patent: 5200886 (1993-04-01), Schwarz et al.

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