Battery charge protection system

Battery charge protection system

电池充电保护系统

系统包括包括一个或多个电池的电池,能量源,负载和耦合到电池,能量源和负载的电池保护电路。电路确定每个单元的电荷是否在预定的带隙提供的阈值电压以上,这导致电池与能量源的断开。电路还可以确定任何电池的电荷是否处于/低于第二预定电平,这可能导致电池与负载断开。电路可以通过使用两组场效应晶体管,两个逻辑门,两组比较器电路和两个继电器来进行辐射硬化(例如,通过冗余)。该电路提供多重冗余保护,包括:冗余地评估过电压确定;冗余触发电池隔离;并通过冗余的第一和第二继电器防止意外的隔离和不充电,不存在过电压。

A system comprises a battery including one or more cells, an energy source, a load, and a battery protection circuit coupled to the battery, the energy source and the load. The circuit determines if the charge of each cell is at/above a predetermined, band gap supplied threshold voltage, which results in disconnecting of the battery from the energy source. The circuit also may determine if the charge of any cell is at/below a second predetermined level, which may result in disconnecting of the battery from the load. The circuit may be radiation-hardened (e.g., via redundancy), through the use of two sets of field effect transistors, two logic gates, two groups of comparator circuits, and two relays. The circuit provides multiply redundant protection comprising: redundantly assessing the overvoltage determination; redundantly triggering battery isolation; and preventing inadvertent isolation and non-charging, occurring absent overvoltage, through redundant first and second relays.

  • Aeroflex Plainview, Inc.
  • <a href="http://uspatentlaw.cn/portfolio/patent-application/" rel="tag">Patent Application</a>
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