Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1997-03-12
1999-11-09
Paladini, Albert W.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
320104, 320107, 320116, 340455, 340636, H02J 724
Patent
active
059820500
ABSTRACT:
A Zener diode 16 is connected to each of single cells 10 of an electric double layer capacitor in parallel, and a resistor 18 is connected to each of the Zener diode 16 in series. Thus, in a case where a single cell 10 is excessively charged, when the bias voltage of the single cell 10 is equal to or higher than the Zener voltage, a discharge current flows through the Zener diode 16 connected to the single cell 10, so that the voltage decreases to the Zener voltage. Thus, it is possible to prevent the electric double layer capacitor from being excessively charged due to the dispersions in electrostatic capacity and internal resistance, and to stably accumulate electricity for a long time.
REFERENCES:
patent: 4019120 (1977-04-01), Fattic
patent: 4146825 (1979-03-01), Harhay
patent: 4316134 (1982-02-01), Balan et al.
patent: 4839576 (1989-06-01), Kaneyuki et al.
patent: 5039931 (1991-08-01), Wieland
Fuji Jukogyo Kabushiki Kaisha
Paladini Albert W.
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