Drive control circuit

Details Drive control circuit Drive control circuit

1990-06-20

1991-05-21

Ip, Paul

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318630, 371 212, 371 251, 371 291, 380 28, H03M 1300

Patent

active

050178482

ABSTRACT:
The present invention relates to a drive control circuit for controlling a driving system including, e.g., a carriage driving motor, a print head and others, which is to be employed in an apparatus such as a printer. More specifically, the present invention is concerned with a drive control circuit which can protect the driving system properly and prevent the driving system from being damaged, when a malfunction occurs in a ROM as in the case where the ROM in which a control program for controlling the driving system and a runaway detection program for the prevention of burning or the like which occurs in a driving motor as a result of the runaway of the control program have been written therein, is damaged or as in the case where no ROM is incorporated.

REFERENCES:
patent: 3544777 (1970-12-01), Winkler
patent: 4698617 (1987-10-01), Bauer
patent: 4829520 (1989-05-01), Toth
patent: 4862371 (1989-08-01), Maekawa
patent: 4953165 (1990-08-01), Jackson

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