Title:
PWM AMPLIFIER
Document Type and Number:
Japanese Patent JPS6032594
Kind Code:
A
Abstract:
PURPOSE:To improve the controllability by forming the relationship between a command value for controlling ON/OFF time and the ON/OFF time linearly. CONSTITUTION:A switching period is set to a period counter 34 through a bus 32 from a microcomputer 31, and ON time data and directional bit data are set to data latch 33. A comparator 35 turns an output S2 OFF when the counted value of a period counter 34 increases larger than the ON time data set to the latch 33 and outputs a pulse signal S2 that the ON time data becomes pulse width. A converter output drive signals S3, S4 of transistors TR9-TR12 by the data S1 and the pulse signal S2. Thus, the controllability can be improved.
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Inventors:
ARAI SHINICHI
SUGIMOTO KOUICHI
SAKAGAMI YUKIKORE
SUGIMOTO KOUICHI
SAKAGAMI YUKIKORE
Application Number:
JP13943383A
Publication Date:
February 19, 1985
Filing Date:
August 01, 1983
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H02P1/22; H02P7/00; H02P7/29; H02P7/291; (IPC1-7): H02P7/29
Attorney, Agent or Firm:
Akio Takahashi
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