| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply device which supplies always-stabilized source voltage to electronic circuits put on a car. SOLUTION: The power supplying device is provided with a battery 2, which supplies power to the electronic circuits put on the car and is chargeable, a generator 3 which generates power to this battery 2 charging the battery 2 and power to be supplied to the electronic circuits put on the car, a capacitor 5 connected between the power line VCC and the grounding line GND for the electronic circuits put on the car, a power source monitor means 6 for monitoring the voltage of the battery 2, and a switching means 10, which interrupts connection between the battery 2 and the power line VCC or grounding line GND for the electronic circuits put on the car, when the monitor means 6 detects that the voltage of the battery 2 becomes a specified value or lower. |
