Solenoid driving device

Details Solenoid driving device Solenoid driving device

2005-01-04

2005-01-04

Leja, Ronaki (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

C361S093100

Reexamination Certificate

active

06839216

ABSTRACT:
To reduce the number of signal lines for connecting an current detector and a solenoid electrically.Between solenoids1-1and1-2and switches SW-1and SW-2and on the high sides with respect to the individual solenoids, respectively, there are connected current detectors4-1and4-2. The end portions of the solenoids1-1and1-2on the individual GND sides are made common. The number of signal lines for connecting a controller and the two solenoids may be “2+1=3”. Therefore, the number of terminals (or the pin number) of a connector3may also be “2+1=3” (P1to P3). The current detectors4-1and4-2detect the electric currents to flow to the solenoids1-1and1-2. In the case of an incomplete grounding, for example, it is possible to detect an overcurrent to flow to the solenoids.

REFERENCES:
patent: 4485424 (1984-11-01), Niwa et al.
patent: 5801504 (1998-09-01), Endo et al.
patent: 5941282 (1999-08-01), Suzuki et al.
patent: 6157160 (2000-12-01), Okawa et al.

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