Supply voltage should be controlled at not more than or less than 5% of rated voltage range, if the voltage too high or too low will damage motor.

电源电压应控制在不大于或小于额定电压的5%范围内，如果电压过高或过低都会损坏电机。

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Supply voltage should be controlled at not greater than or less than the rated voltage range of 5%, if the voltage too high or too low will damage motor.

电源电压应控制在不大于或小于额定电压的5%范围内，如果电压过高或过低都会损坏电机。

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New FET-input amplifiers, like the AD820 family of amplifiers, incorporate design improvements that prevent output voltage phase reversal for signals within the rated supply voltage range.

新型的FET输入管放大器(如ad820系列放大器)，在设计上做了改善，对于额定电源电压范围之内的信号，能够防止输出电压相位反转。

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