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tida-01606采样问题

 您好,

我在直流侧给100V电压,开环控制输出45V单相幅值电压,负载采用星形连接阻值为50ohm,对逆变侧电压和电流(霍尔传感器)量进行获取,发现采样进来的值电压的偏差会出现+-7V以内,电流的偏差在+-0.4以内。

想问一下是因为电压和电流太低导致的吗?