Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Including means for using – or compensating for – the induced...
Patent
1987-07-06
1988-09-27
Hix, L. T.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Including means for using, or compensating for, the induced...
123490, H01H 4700
Patent
active
047746246
ABSTRACT:
Inductor coil (13) of a relay (12) used to supply battery power to a power load (11) of a vehicle engine control system (10) is also used to provide a substantially higher than battery voltage (V.sub.Batt) boost voltage (V.sub.Boost) for vehicle control apparatus (20). Microprocessor (21) generates a control signal (V.sub.in) having a 10:1 duty cycle for control of current excitation of the coil (13) during an effective on logic state for the relay (12). During coil current interruptions during the on logic state, energy stored in the inductor (13) is utilized via a rectifier means (26 and 27) to provide the boost voltage. During the on relay state, a movable member (14) of the relay is maintained in its actuated position since current interruptions during the on state are shorter than the relaxation time required for the movable member to assume a nonactuated state. The relay coil generates boost voltage without requiring an additional substantial inductive reactance, and without waiting until the end of the effective on logic state.
REFERENCES:
patent: 3456628 (1969-07-01), Bassot et al.
patent: 3549955 (1970-12-01), Paine
patent: 3660730 (1972-05-01), Mason
patent: 3665901 (1972-05-01), Monpetit et al.
patent: 4327693 (1982-05-01), Busser
Gray David M.
Hix L. T,.
Melamed Phillip H.
Moore John H.
Motorola Inc.
LandOfFree
Boost voltage power supply for vehicle control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Boost voltage power supply for vehicle control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boost voltage power supply for vehicle control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2400700