Battery charging apparatus and method of controlling battery charging apparatus,申请号US201314346580-传众专利搜索

Battery charging apparatus and method of controlling battery charging apparatus

申请公布号：US9337673(B2)

申请号：US201314346580

申请日期：2013.06.04

申请公布日期：2016.05.10

申请人：

Shindengen Electric Manufacturing Co., Ltd.

发明人：Iwakura Tokihiko;Tabuta Makoto

分类号：H02J7/00;H02J7/04;H02J7/02;H02M7/162;H02J7/10

主分类号：H02J7/00

代理机构：

Ladas & Parry, LLP

代理人：Ladas & Parry, LLP

地址：Tokyo JP

摘要：A battery charging apparatus that controls charging of a battery by an alternating-current generator, the battery charging apparatus has a first switch element connected to a first battery terminal to which a positive electrode side of the battery is connected in a normal connection of the battery at a first end thereof and to a first generator terminal to which a first output of the alternating-current generator is connected at a second end thereof, and a second switch element connected to the first battery terminal at a first end thereof and to a second generator terminal to which a second output of the alternating-current generator is connected at a second end thereof. In a case when a controlling circuit stops controlling the first switch element and the second switch element, and the first switch element and the second switch element are turned off, a detecting circuit, which detects a reverse connection condition of the battery, forcedly turns on at least one of the first switch element and the second switch element when the detecting circuit detects the reverse connection condition of the battery.

主权项：1. A battery charging apparatus that controls charging of a battery by an alternating-current generator, comprising: a first generator terminal to which a first output of the alternating-current generator is connected; a second generator terminal to which a second output of the alternating-current generator is connected; a first battery terminal to which a positive electrode side of the battery is connected in a normal connection condition of the battery; a second battery terminal to which a negative electrode side of the battery is connected in the normal connection condition of the battery, the battery and a fuse being connected in series with each other between the first battery terminal and the second battery terminal; a rectifying circuit that has a first switch element connected to the first battery terminal at a first end thereof and to the first generator terminal at a second end thereof, a second switch element connected to the first battery terminal at a first end thereof and to the second generator terminal at a second end thereof, a first rectifying element connected to the first generator terminal at a first end thereof and to the second battery terminal at a second end thereof, and a second rectifying element connected to the second generator terminal at a first end thereof and to the second battery terminal at a second end thereof, rectifies an output current of the alternating-current generator and outputs the rectified output current to the first battery terminal; a detecting circuit that detects a reverse connection condition of the battery in which the negative electrode side of the battery is connected to the first battery terminal and the positive electrode side of the battery is connected to the second battery terminal, and controls either of the first switch element and the second switch element based on a detection result; and a controlling circuit that controls the first switch element and the second switch element of the rectifying circuit to rectify the output current of the alternating-current generator, wherein in a case when the controlling circuit stops controlling the first switch element and the second switch element, and the first switch element and the second switch element are turned off, the detecting circuit forcedly turns on at least one of the first switch element and the second switch element when the detecting circuit detects the reverse connection condition of the battery.