Current control apparatus in DC motor

Details Current control apparatus in DC motor Current control apparatus in DC motor

1995-11-29

1999-02-09

Ro, Bentsu

Electricity: motive power systems

Battery-fed motor systems

318245, 318246, 388804, H02P 714

Patent

active

058699384

ABSTRACT:
Current control apparatus of DC motor includes current amplifying means for detecting the current amount at the rear end of the motor and amplifying the current value; on-off control means for comparing the input current with the current supplied from the current amplifying means and outputting an on-off control signal according to the current amount; and microcomputer for controlling the duty value of the pulse wave of a predetermined frequency occurring in accordance with the on-off control signal from the on-off control means and controlling the on-off time of the chopper transistor.

REFERENCES:
patent: 4366420 (1982-12-01), Omae et al.
patent: 4443744 (1984-04-01), Konrad
patent: 5136219 (1992-08-01), Takahashi et al.

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