2016/6/17 9:23:07 来源： 厦门泰尼电气有限公司
1753-OB16
1753-OB16
1753-OB16
在功放电路中，各个晶体管的开通时间一般在1tds以下，光耦PC上升速度响应时间约为几十微秒，若采用高速光耦则只需几微秒。因此功放电路中锁相延时主要是锁相电流的上升时间，对于步迸电机绕组，锁相电流的上升时间t可由公式(1)计算：
式中：i为电机锁相电流，亿为绕组驱动电压，Rα为绕组电阻和限流电阻之和，L为绕组电感。对于GSK928TA的Z轴电机，采用DF3A系列驱动器，其Vα=310 V，R。为3.5 Q，由此可计算得t为0.486 ms。据此估算屯：约为0.5 ms。
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