| 摘要 |
PURPOSE:To correct the amount of voltage drop due to a long section wire and improve charging efficiency by a method wherein a charger is provided with a trigger voltage control circuit, operated by the detecting signals of both of a charging current and a charging voltage, and a trigger circuit, operated based on the output of the trigger voltage control circuit. CONSTITUTION:The output of a generating coil 10 is rectified by a rectifying circuit 14 to charge a battery 16. When a charging voltage has arrived at a voltage set by a voltage detecting circuit, a trigger voltage control circuit conducts a trigger circuit 22 by a signal from the voltage detecting circuit 26, triggers thyristors 18, 20 and grounds the output of the generating coil 1. whereby overcharging for the battery 16 may be prevented. On the other hand, the amount of voltage drop can be estimated by predetermined wire length and current and a trigger voltage control circuit 24 is controlled by not only the signal of the voltage detecting circuit 26 but also a signal from a current detecting circuit 28 to correct the amount of voltage drop whereby the output voltage of the generating coil 10 may be supplied to the charging of the battery 16 efficiently in a short period of time. |
