High-voltage dc measurements usually involve a high-resistance voltagedivider which usually forms a high resistance to the circuit being measured and thus draws infinitesimal current.
C voltagedivider includes switching power and electricity - transformation, so that it can be used to design lower voltage of direct current power.
直流分压器集开关电源和电能变换于一体，可以用来设计降压型直流电源。
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High-voltage DC measurements usually involve a high-resistance voltagedivider, which usually forms a high resistance to the circuit being measured and thus draws infinitesimal current.