Title:
IRREGULAR MAGNETIZATION PREVENTING SYSTEM FOR TRANSFORMER
Document Type and Number:
Japanese Patent JPS586072
Kind Code:
A
Abstract:
PURPOSE:To prevent the irrgular magnetization of a transformer by preventing the input of ON signal to a switching transistor even when the ON signal is inputted at the time when the energization of the transistor is not released. CONSTITUTION:When the width of an ON signal from a rectangular wave generator becomes wider than the prescribed value and an OFF signal becomes narrow, the ON signal of the generator is inputted while a current for releasing the energization is flowing through a diode D1. On the other hand, the terminal of a diode D4 of an AND circuit 1 is ''L'' level, and the ON signal is not applied to the input of a transistor Tr until the current for releasing the energization is eliminated. Accordingly, the transformer T is not irregularly magnetized (saturated).
Inventors:
YOKOYAMA HIDEO
KOGA NOBUYUKI
KOGA NOBUYUKI
Application Number:
JP10274081A
Publication Date:
January 13, 1983
Filing Date:
June 30, 1981
Export Citation:
Assignee:
FUJITSU DENSO
International Classes:
H01F27/34; H02M1/40; H02M3/28; H02M3/335; H02M7/537; (IPC1-7): H01F27/34; H02M7/537
Domestic Patent References:
| JPS54135313A | 1979-10-20 |
Attorney, Agent or Firm:
Koshiro Matsuoka