Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1981-01-12
1983-08-30
Hickey, R. J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
322 28, 322 94, 323276, 361 18, H02J 710, H02P 900, H02H 328
Patent
active
044019360
ABSTRACT:
A protection system is described for series regulators exposed to power sources such as permanent magnet alternators which may exhibit high open circuit voltages. The subject system includes a circuit which protects the control transistor in the regulator from a forward bias second breakdown by clamping it OFF responsive to the alternator output voltage exceeding a predetermined level. In one embodiment the clamping circuit keeps this transistor off during enough of the duty cycle to reduce the voltage across the control transistor to a level above which second breakdown occurs. In one embodiment, an auxiliary circuit shorts the alternator output terminals to ground to protect electrical apparatus connected to the alternator from burn-out due to high voltages occasioned by sulfated batteries or loose battery terminals which result in a high impedance being presented to the alternator.
REFERENCES:
patent: 3079543 (1963-02-01), Decker
patent: 3581150 (1971-05-01), Kirk et al.
patent: 3710227 (1973-01-01), Hill
patent: 3857082 (1974-12-01), van Opijnen
patent: 3943408 (1976-03-01), Jakobs et al.
patent: 4008418 (1977-02-01), Murphy
patent: 4020395 (1977-04-01), Erickson et al.
patent: 4040115 (1977-08-01), Gruson
Hickey R. J.
Tympanium Corporation
LandOfFree
Protection system for series regulator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Protection system for series regulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protection system for series regulator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-907966