PWM multiplexed solenoid driver

Details PWM multiplexed solenoid driver PWM multiplexed solenoid driver

1995-06-07

1997-04-15

Martin, David S.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

361160, 361167, 307 38, 307 39, 323271, 323272, 123490, H01H 4732

Patent

active

056216041

ABSTRACT:
This invention relates to driving solenoid and motor loads while providing the means for fast turn on and fast turn off. Many applications including automotive fuel injector drivers, Anti-Skid Braking (ABS) solenoid and motor drivers, and other electro-mechanical motion control require the ability to quickly turn on or off a number of devices. The invention utilizes a bridge architecture to drive the loads and to turn on and off individual devices. The invention employs a diode and a switch for each device controlled plus a single master diode and a single master switch. The invention thereby reduces the number of components needed to control N devices to 2*N+2 from prior art half bridge circuit 4*N. Novel techniques and algorithms are used to multiplex the single master switch and control multiple inductive devices. The system provides redundant control and error checking means to preclude single point failure mechanisms.

REFERENCES:
patent: 3305764 (1967-02-01), Todd
patent: 4295177 (1981-10-01), Woodhouse et al.
patent: 4453652 (1984-06-01), Merkel et al.
patent: 4511945 (1985-04-01), Nielsen
patent: 4535879 (1985-08-01), Sturges
patent: 4612619 (1986-09-01), Culp
patent: 4625622 (1986-12-01), Gunda et al.
patent: 4661882 (1987-04-01), Presley
patent: 4905120 (1990-02-01), Grembowicz et al.
patent: 4980793 (1990-12-01), Glowczewski et al.
patent: 5022301 (1991-06-01), Stahnke
patent: 5113158 (1992-05-01), Tsuji et al.
patent: 5202813 (1993-04-01), Uota et al.
patent: 5237262 (1993-08-01), Ashley
patent: 5255152 (1993-10-01), Estes, III

Affiliated with

Also associated with

Rating

PWM multiplexed solenoid driver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with PWM multiplexed solenoid driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PWM multiplexed solenoid driver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-365735