Magnetic material biasing method and apparatus

Details Magnetic material biasing method and apparatus Magnetic material biasing method and apparatus

1987-07-30

1988-11-01

Salce, Patrick R.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 21, 363 97, H02M 3335

Patent

active

047824379

ABSTRACT:
In an apparatus such as a transformer comprising at least a magnetic core and a main winding, a method and apparatus for biasing of a magnetic material is characterized in that an auxiliary winding N2 is added to said magnetic core 2 and a predetermined amount of demagnetizing current, which will reduce the magnetic flux caused by said main winding N1 by a predetermined amount, is caused to flow through said auxiliary winding N2 in synchronism with an increase in the magnetic flux caused by said main winding N1 to prevent the magnetic saturation of the magnetic core during the time that the magnetic flux caused by the main winding is increasing.

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