Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1985-08-06
1987-05-12
Hickey, R. J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
322 28, 322 99, 361 21, H02J 716
Patent
active
046653546
ABSTRACT:
A battery voltage regulator for a vehicle charging system includes a voltage control circuit for controlling a battery terminal voltage and an external terminal connected to the positive terminal of a battery through the series combination of a charge lamp and an ignition switch. The regulator is at least composed of a charge lamp drive circuit responsive to a generation output of an alternator in order to energize the charge lamp, a power supply circuit responsive to the potential at the above mentioned external terminal to supply operational power to the voltage control circuit, and a malfunction-preventing circuit connected between the above mentioned external terminal and ground. The malfunction-preventing circuit prevents the power supply circuit from operating by disturbances such as leakage current flowing into the regulator through the external terminal. The regulator may further include a backup circuit responsive to the generation output of the alternator to separately supply operational power to the regulator circuit irrespective of the operation of the power supply circuit when the generation output reaches a voltage value which is higher than the above mentioned potential value at the external terminal by which the power supply circuit is energized, whereby the battery terminal voltage may be continuously maintained constant to a desired level even when a break in the charge lamp conductor has occurred.
REFERENCES:
patent: 3835363 (1974-09-01), Kirk
patent: 3866106 (1975-02-01), Taguchi et al.
patent: 4258307 (1981-03-01), Mori et al.
patent: 4297631 (1981-10-01), Nicol et al.
patent: 4418311 (1983-11-01), Torii et al.
Akita Yoshio
Kato Hidetoshi
Mayumi Nobuo
Mori Kazumasa
Sada Takeshi
Hickey R. J.
Nippondenso Co. Ltd.
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