Title:
スイッチモード電力コンバータで使用される絶縁駆動回路
Document Type and Number:
Japanese Patent JP2004521588
Kind Code:
A
Abstract:
A drive transformer and associated circuitry for providing power and appropriate delays to primary switches and synchronous rectifiers in switch-mode power converters in a full-bridge topology. The invention takes advantage of the leakage inductances of the drive transformer windings as well as the input capacitance of the primary switches (MOSFETs) to provide the delays. No separate circuitry is needed to provide such delays, thereby providing reliability. Exemplary embodiments further disclose means to disable or enable the primary winding from a condition sensed on the secondary side even with a control and feedback circuit located on the secondary side. The invention further discloses means to use one drive transformer winding to control two switches completely out of phase.
Inventors:
Brukovic, Milivoe, Es.
Application Number:
JP2002561353A
Publication Date:
July 15, 2004
Filing Date:
February 01, 2002
Export Citation:
Assignee:
D/D, Incorporated
International Classes:
H02M3/28; H02M1/08; H02M1/088; H02M1/38; (IPC1-7): H02M3/28
Attorney, Agent or Firm:
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Takao Matsui
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Takao Matsui