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1. 发明授权

US5726573A Test circuit for back-up battery with protection during test mode 失效
标题翻译：在测试模式下具有保护功能的备用电池测试电路
公开(公告)号：US5726573A
公开(公告)日：1998-03-10
申请号：US529122
申请日：1995-09-15
申请人： Zhong Xi Chen , Thomas Thai Do
发明人： Zhong Xi Chen , Thomas Thai Do
IPC分类号： G01R31/36 , H01M10/44
CPC分类号： G01R31/3631 , G01R31/3606 , G01R31/3648
摘要： A circuit tests a back-up battery for a power supply. A power source is coupled to a load to deliver power at a normal rated voltage during normal operation. However, during a battery test interval, the power source voltage is lowered to a test mode voltage. This lowers the load voltage, and in response, the circuit attempts to supply the load from the battery. The load voltage is monitored during the test interval to determine if the battery is able to supply rated power. However, the main power source is still instantly available at the test mode voltage to drive the load if the battery fails during the battery test interval. This ensures uninterrupted operation during the test mode. Upon failure of the battery during the test mode, the power supply is quickly ramped up to the normal rated voltage (although the test mode voltage meets output specifications).
摘要翻译：电路测试电源的备用电池。在正常操作期间，电源耦合到负载以在正常额定电压下传递功率。然而，在电池测试间隔期间，电源电压降低到测试模式电压。这降低了负载电压，并且作为响应，电路尝试从电池供应负载。在测试间隔期间监视负载电压，以确定电池是否能够提供额定功率。但是，如果在电池测试间隔期间电池出现故障，主电源仍然可以在测试模式电压下立即驱动负载。这样可以确保在测试模式下不间断的运行。在测试模式期间电池出现故障时，电源将迅速升高至正常额定电压（尽管测试模式电压符合输出规范）。

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