Switched mode power supplies

Details Switched mode power supplies Switched mode power supplies

1986-06-03

1988-08-09

Salce, Patrick R.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 17, 363 58, 315DIG7, H02M 3335, H05B 4129, H05B 41392

Patent

active

047632399

ABSTRACT:
A switched mode power supply has two separate, alternately conductive switching paths, each including two switching elements. Smoothing capacitors are connected in series across the series connection of one switching element in each of the switching paths and to the supply lines via further capacitors. In a further embodiment, a primary winding of a transformer is connected in series with the load and a capacitive network incorporating a secondary winding of the transformer is provided in conjunction with one of the switching elements in each path. Current draw from a rectified supply input is controlled at least once in each cycle by current flowing in the secondary due to the current in the primary.

REFERENCES:
patent: 4251752 (1981-02-01), Stolz
patent: 4370600 (1983-01-01), Zansky
patent: 4392087 (1983-07-01), Zansky
patent: 4511823 (1985-04-01), Eaton et al.
patent: 4639849 (1987-01-01), Noworolski et al.

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