Power source unit for image recording apparatus

Details Power source unit for image recording apparatus Power source unit for image recording apparatus

1989-08-30

1991-02-26

DeBoer, Todd E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

361 93, 307 38, 307 41, H02H 308

Patent

active

049966251

ABSTRACT:
A power source unit for an image recording apparatus having a CPU which controls an operation sequence of a load, includes a current sensor and a relay. The current sensor senses a load current. The relay is connected to a supply path to the load. The relay is operated to interrupt the supply path to the load when the CPU determines that the load current sensed by the current sensor exceeds a current limit value which is determined in advance for every operation cycle of the unit.

REFERENCES:
patent: 3280374 (1966-10-01), McCartney et al.
patent: 4466041 (1984-08-01), Witulski et al.

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