设备可承受的“最高系统”电压的最大值。
Um- –The maximum value of "the highest system voltage "for which the equipment may be used.
在DAQ设备与电压源或电流源连接时必须细心，以确保信号源不超过设备所允许的电压或电流最高值。
Be careful when connecting a voltage or current source to your DAQ device. Make sure the signal source will not exceed the maximum voltage or current that the DAQ device can handle.
实验结果表明，设计的开关变换器输出电压精度高，纹波小，效率最高达到88 %，适用于低压大电流的负载设备。
Experimental results show that the output voltage of the designed converter has high precision, small ripple and up to 88% efficiency, suitable for low-voltage high-current load devices.
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