Program-controlled power supply refers to the power supply that sets the output voltage and output current through external control. It can test voltage, current, phase, power meter, frequency, etc., and can also be used to detect signals; the power-on problem and button failure problem of the display; the electrical measurement, thermal engineering, motion, scheduling and other measurements of the power system. The program-controlled power supply is controlled by a microcomputer, and the technology is very advanced, which can realize full-automatic control and full-key operation. It can not only reduce the damage of electric energy to the instrument, but also avoid operational errors. It can be used in the laboratory or on-site. According to the requirements of customers, designers innovate and improve from appearance design, structural design and hand board. Combined with the actual use of program-controlled power supply, bold and innovative design is carried out from multiple angles such as design positioning, protection performance, and man-machine experience. This program-controlled power supply design has been brainstormed by the designer, which not only has high safety factor, strong practicability, stable performance, low noise, small size, light weight and easy to carry. It can support multi-language settings, which is convenient for users to use; it is not only controlled by a microcomputer but also equipped with a touch screen, which can be operated manually, and the output parameter setting, data measurement, system configuration and system setting can be quickly realized through the touch screen. Bring convenience. The structure design is simple, the configuration of each component is reasonable, high performance, high standard, high efficiency, high accuracy, with back test function, can monitor the power output in real time, multi-function, suitable for a variety of situations, wide working range, strong applicability. The handle is well designed, the hand-held is high, the operation interface is simple and convenient, the function keys are clear, and there is software interlock, which can prevent other problems caused by inadvertently touching the keys. There is software interlock protection, random operation will not be damaged, and it is very safe and convenient to use.