Leda power supply cannot regulate DC voltage.

The control tube is short-circuited. You need to debug the positive and negative interfaces. Anhui Leda Electric Power Technology Co., Ltd. was established on March 7, 20 14. The legal representative is Dai Shaojuan. The company's business scope includes: R&D, complete sets of power supply equipment, high and low voltage switchgear, ring network cabinets, box transformers, electromechanical products, transformers, electrical components, electrical accessories, electrical switches, computers, microcomputer protection, instrumentation, wires and cables and accessories, hardware tools, non-ferrous metals (except special items), bus bridges and building electrical products, and information consulting services; Computer system integration technical services, etc.