Step-up power supplying circuit

Details Step-up power supplying circuit Step-up power supplying circuit

1991-04-30

1992-02-04

Sterrett, Jeffrey

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

323223, 363 84, 363124, 363126, H02M 112

Patent

active

050863835

ABSTRACT:
After an AC voltage was rectified and smoothed, it is stepped up by a chopper circuit. Another winding is magnetically coupled to a choke coil of the chopper circuit so as to have the same polarity. An inductance for adjusting a current is connected serially with another winding. A current of a phase opposite to a phase of a current flowing in the choke coil is generated in another winding, thereby setting off a ripple current flowing in an input smoothing capacitor.

REFERENCES:
patent: 4034281 (1977-07-01), Morita et al.
patent: 4045708 (1977-08-01), Neal
patent: 4546304 (1985-10-01), Schwarz
patent: 4591966 (1986-05-01), Smith
patent: 4803378 (1989-02-01), Richardson
patent: 4837495 (1989-06-01), Zansky

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