摘要
提出了一种串联锂电池组测量电压新方法,针对8串锂电池组,采用线性光耦HCNR201和光电继电器AQW21OEH等器件设计了电压测量电路,详细分析了测量电路的工作原理并推导出外围电阻的计算方法。该测量方法具有电路简单、成本较低、抗干扰性好、误差小等的优点。
A novel measurement method for voltages of lithium batteries in series was presented.A voltage measurement circuit,which used linear photocouplers HCNR201 and photoelectric relays AQW21OEH,was designed for eight lithium batteries in series.The working principle of the measurent circuit was analyzed in detail and the computing method for periphery resistances was made a deduction.This measurement method is with advantages of simple circuits,lower cost,good anti-interference,and less errors.
出处
《电工电气》
2010年第9期52-54,共3页
Electrotechnics Electric
关键词
串联电池组
电压测量
线性光耦
光电继电器
batteries in series
voltage measurement
linear photocoupler
photoelectric relay
