WYJ series DC stabilizing power-supply is a kind of continuously adjustable linear DC voltage stabilizing power-supply for zero voltage to rated voltage value. It is mainly composed of by disconnection transformer, controlled rectifier pre-stabilizing voltage circuit, linear voltage stabilizing circuit and filtering circuit. The power-supply can be working under constant voltage output way or cons -tant current output way.When it adopted the constant current output way,the output current can be adjusted from zero to rated value. This series power supply has two routes of complete protection circuits, so it has good reliability and is ideal DC voltage stabilizing power-supply for colleges, factories and science offices. It is suitable in electronic instruments, electrical maintenance, laboratory, electrolysis and electroplating, measurement and test device, factory electrical equipment.etc.