Electricity: power supply or regulation systems – External or operator controlled – Phase controlled switching using electronic tube or a three...
Patent
1984-09-19
1986-07-15
Salce, Patrick R.
Electricity: power supply or regulation systems
External or operator controlled
Phase controlled switching using electronic tube or a three...
323356, H02J 300
Patent
active
046008772
ABSTRACT:
In a transformer having a primary winding which is connectable to an a.c. voltage source via switch means which opens and closes at a controllable frequency, there is connected in parallel with the primary or secondary winding of the transformer a circuit which for at least a part of the time during which the switch means opens maintains magnetization of the transformer in a direction opposite to the direction of the magnetization caused by the subsequent closing of the switch means.
REFERENCES:
patent: 4016482 (1977-04-01), Cielo et al.
patent: 4441146 (1984-04-01), Vinciarelli
Ault Anita M.
Kraftelektronik AB
Salce Patrick R.
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