A programmable DC power supply is a process in which instructions are compiled and fed into a machine in a sequence of operations so that the machine runs automatically according to the instructions. What is a programmable DC power supply used for? Programmable DC power supply or power supply. As for programme control, this means that the output of the power supply can be programmed and controlled. Programmable DC power supplies can generate stable high-power industrial frequency voltage and current signals with adjustable range, frequency and phase angle. It is mainly used for testing and verification of current, voltage, phase, frequency and power meters; it can also be used to verify the basic error, creep and sensitivity of standard power energy meters.

Xuan'an Technology, as a leading instrumentation manufacturer in China, responded positively to the exhibition's purpose of "high level, specialisation and industrialisation", and made a high-performance appearance at the exhibition with a special string for semiconductor equipment, discussing the new trends of the industry with exhibitors and visitors.