With the development and innovation of power electronic technology, the current switching power supply is widely used in almost all electronic devices mainly due to its small size, light weight and high efficiency. Its importance is evident. Switching power supply is a kind of power supply that uses modern power electronic technology to control the time ratio of switching on and off to maintain a stable output voltage. Switching power supplies are generally composed of pulse width modulation (PWM) control ICs and MOSFETs.
Classification of switching power supply
According to the way the switching device is connected in the circuit, the switching power supply can be divided into three categories: series switching power supply, parallel switching power supply, and transformer switching power supply.
Among them, the transformer-type switching power supply can be further divided into: push-pull, half-bridge, full-bridge, etc. According to the excitation of the transformer and the phase of the output voltage, it can be divided into: forward type, flyback type, single excitation type and double excitation type.The difference between switching power supply and ordinary power supply
Ordinary power supplies are generally linear power supplies. Linear power supplies refer to the power supply when the regulator tube works in a linear state. But in the switching power supply, it is different. The switching tube (in the switching power supply, we generally call the adjusting tube the switching tube) works in two states: on and off.
Switching power supply is a relatively new type of power supply. It has the advantages of high efficiency, light weight, voltage increase and decrease, and high output power. But because the circuit works in the switch state, the noise is relatively large.
Yueqing Ward Electric Co., Ltd. is a high-tech professional manufacturer in China. We have more than 8 years of production experience in switching power supplies and LED drivers. We have strong technical force, first-class production and inspection equipment.
Our product line includes single-output, dual-output, three-output and four-output switching power supplies, DIN rail power supplies, micro power supplies, rain-proof power supplies, LED drivers and waterproof LED drivers, which are widely used in LED lighting, closed-circuit televisions, medical equipment and equipment , Communications, monitors and office automation fields. These are well received by customers all over the world.
Ward has obtained the CE LVD EMC ROHS quality system certification for switching power supplies and the waterproof rating IP68 certification for LED drivers. We have established stable business relationships with customers in Europe, North America, South America, and the Middle East. Many well-known companies choose us as OEM suppliers.If you want to get more information about good quality switching power supply,please contact us.