The technical index and calibration level of the DC resistance voltage divider are analyzed, the uniform calibration method is proposed, the uncertainty is analyzed and the checking method is given.
In dc-dc converts, the average dc output voltage must be controlled to equal a desired level, though the input voltage and the output load may fluctuate.
对于直流-直流变流器，虽然输入电压和输出负载会波动，直流输出电压必须控制在一个希望的水平。
3
First, the topology of the inverter and different output voltagelevel numbers in the situation of different voltage value ratio of two DC power supplies are analyzed.