Title:
DRIVING METHOD FOR PLURAL PULSE TRANSFORMERS
Document Type and Number:
Japanese Patent JPS59103582
Kind Code:
A
Abstract:
PURPOSE:To eliminate the adverse influence to the operation of other electric components by employing a signal modulated by a modulation signal having a phase difference between drive for a drive signal of each pulse transformer, thereby reducing the ripple components of a power source current. CONSTITUTION:A plurality of transmission signals 21-23 are modulated by AND gates 24-26. A modulation signal 20 having a constant duty is divided into necessary number by a signal phase shift distributor 30 and supplied to these AND gates 24-26. This phase shift distribution is performed for displacing the phase of the drive signal of each pulse transformer. The outputs of the gates 24-26 become base drive signals 13b-15b of a transistor for driving a pulse transformer.
Inventors:
SHIMIZU TOSHIHISA
Application Number:
JP21365782A
Publication Date:
June 15, 1984
Filing Date:
December 04, 1982
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
H02M7/537; (IPC1-7): H02M7/537
Attorney, Agent or Firm:
Kubo Tsukasa