Electric parts drive circuit

Details Electric parts drive circuit Electric parts drive circuit

2006-07-04

2006-07-04

Vu, Phuong T. (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

C361S139000, C361S152000

Reexamination Certificate

active

07072164

ABSTRACT:
An electric parts drive circuit has: a first field-effect transistor including in parallel a first parasitic diode and provided between the plus line and an electric part; a second field-effect transistor including in parallel a second parasitic diode, the first and second field-effect transistors being connected in series in order from the plus line to the electric part; a third field-effect transistor including in parallel a third parasitic diode and provided between a minus line and the electric part; a failure diagnosis switch unit; and a switch control unit, wherein the switch control unit diagnoses a failure of the second field-effect transistor based on the voltage between the first and second field-effect transistors responsive to switching between conduction and shutoff of the second field-effect transistor in a state that the first and third field-effect transistors are shut off and the failure diagnosis switch unit is brought into conduction.

REFERENCES:
patent: 5625518 (1997-04-01), Bober
patent: 6493204 (2002-12-01), Glidden et al.
patent: 11-205114 (1999-07-01), None
patent: WO 01/03987 (2001-01-01), None

Affiliated with

Also associated with

Rating

Electric parts drive circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric parts drive circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric parts drive circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3535918