Title:
DRIVING CIRCUIT FOR MOTOR
Document Type and Number:
Japanese Patent JPS5872399
Kind Code:
A
Abstract:
PURPOSE:To generate an extrafine trapezoidal frequency without use of a large capacity ROM by detecting the output data of a memory circuit which stores the predetermined data in response to addresses via a counter and a detector. CONSTITUTION:Predetermined data are stored in response to addresses in an ROM 1. A down counter 4 counts clock pulses. The output data of the ROM 1 is set in the counter 4 in response to the control signal and the start signal generated when the content becomes specific value. The data of the presetting circuit 3 is set in response to the start signal in the address specifying up-down counter 2 of the ROM 1, and is counted with the control signal as a clock. When the output data of the ROM 1 becomes the prescribed value, the output pulse is applied to a motor driving pulse decoder 8.
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Inventors:
ANDOU TAKASHI
Application Number:
JP16972781A
Publication Date:
April 30, 1983
Filing Date:
October 22, 1981
Export Citation:
Assignee:
SANYO ELECTRIC CO
TOKYO SANYO ELECTRIC CO
TOKYO SANYO ELECTRIC CO
International Classes:
H02P8/14; H02P8/18; (IPC1-7): H02P8/00
Attorney, Agent or Firm:
Takuji Nishino