| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a battery charger capable of accurately controlling thyristors even if an output voltage of a three-phase AC generator increases. <P>SOLUTION: This three-phase AC generator battery charger turns off the thyristors S4, S5 and S6 when a battery voltage detector detects a voltage equal to or more than a predetermined value, where the three-phase AC generator 10 and a battery 8 are connected through an output of the AC generator 10 at respective phases AC1, AC2 and AC3 through a rectifier including the thyristors S4, S5 and S6 and ignition circuits 1d, 1e and 1f, and the battery 8 is connected with a voltage detector for detecting a battery voltage. This battery charger connects the thyristors S1, S2 and S3 and the ignition circuits 1a, 1b and 1c in series with the thyristors S4, S5 and S6 at the respective phases AC1, AC2 and AC3 and controls the ignition of the thyristors S1, S2, S3, S4, S5 and S6 by a phase control portion 100 for controlling ignition timings for the ignition circuits 1a, 1b, 1c, 1d, 1e and 1f. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
