Car power source apparatus
AssigneeSanyo Electric Co., Ltd.
InventorsHideki Sakata, Takeshi Oosawa, Akira Matsumoto
Life of this patent
Estimating the term…
Abstract
The car power source apparatus is provided with contactors 2 connected to the output-side of the battery 1; a pre-charge circuit 3 made up of a series connected pre-charge resistor 6 and a pre-charge relay 7, which is connected with a contactor 2 to supply auxiliary charge to a capacitor 21 connected to the car-side of the battery 1; and a control circuit 4 to control the contactors 2 and pre-charge relay 7.The pre-charge resistor 6 is connected in parallel with a contactor 2, and the pre-charge relay 7 is connected in series with that contactor 2. The control circuit 4 switches the pre-charge relay 7 ON to pre-charge the car-side capacitor 21, and then switches the contactor 2 ON to connect the battery 1 to the car-side.
Claims20
A car power source apparatus comprising:
- a battery;
- contactors connected to the output-side of the battery;
- a capacitor connected to the car-side of the battery;
- a pre-charge circuit connected to a contactor and made up of a series connection of pre-charge resistor and pre-charge relay to provide auxiliary charge to the capacitor;
- and
- a control circuit to control the contactors and pre-charge relay;
- wherein the pre-charge resistor is connected in parallel with a contactor, the pre-charge relay and that contactor are connected in series;
- and the control circuit switches the pre-charge relay ON to pre-charge the car-side capacitor, and switches the contactor ON to connect the battery 1 to the car-side.
Dependencies are inferred from the claim text.