Pulse width modulator symmetry correction circuit and method the

Details Pulse width modulator symmetry correction circuit and method the Pulse width modulator symmetry correction circuit and method the

1977-09-28

1979-01-02

Shoop, William M.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 97, H02M 7537

Patent

active

041330250

ABSTRACT:
A transformer with a high permeability core is substantially prevented from saturating by a symmetry correction circuit which senses the total flux density change of either a positive or negative polarity and balances the total flux density change of the opposite polarity to thereby provide symmetrical positive and negative changes in the flux density of the transformer. The symmetry correction circuit integrates the voltage from a winding of the transformer to determine the total flux density change of a given polarity during the application of a voltage of one polarity. The duration of the voltage of the opposite polarity is controlled by the symmetry correction circuit such that the net voltage-time integration of the two applied voltages is substantially equal to zero.

REFERENCES:
patent: 3697855 (1972-10-01), Kernick et al.
patent: 3710229 (1973-01-01), Jessee
patent: 3873903 (1975-03-01), Koetsch et al.
patent: 4005352 (1977-01-01), Kugler et al.
patent: 4061957 (1977-12-01), JanVader

Affiliated with

Also associated with

Rating

Pulse width modulator symmetry correction circuit and method the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pulse width modulator symmetry correction circuit and method the, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulse width modulator symmetry correction circuit and method the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1520575