Programmable DC power supplies can make the waveform of current better follow the waveform of the voltage, so as to restrain the harmonic distortion of the input current to a certain extent.
In this way, it can reduce the pollution brought by the power supply to the power grid and reduce the waste of the power supply in use. The high quality electronic measurement instruments have great value.
The wide range voltage output of the programmable DC power supply is suitable for testing and analyzing the characteristics of components, circuits, modules and complete devices both in the development and in the production test.

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