1. The alternating current (AC) input is rectified and filtered to become direct current (DC); 2. High-frequency PWM (Pulse Width Modulation) signals control the switching tube, adding the DC to the primary of the switching transformer; 3. The secondary of the switching transformer induces high-frequency voltage, which is then rectified and filtered to supply the load; 4. The output section is fed back to the control circuit through a certain circuit, adjusting the PWM duty cycle to achieve stable output. Generally, an inductor or similar component is used during AC input to filter out interference from the power grid and also to reduce interference from the power supply to the grid; 5. At the same power level, the higher the switching frequency, the smaller the size of the switching transformer, but the higher the requirements for the switching tube; 6. The secondary of the switching transformer can have multiple windings or multiple taps on a single winding to achieve the desired output; 7. Additional protection circuits, such as no-load and short-circuit protection, should generally be added to prevent the switching power supply from being damaged. Mainly used in industrial applications and some household appliances, such as televisions and computers. 36V aviation power supply, 400HZ frequency converter power supply, 115/200V power supply, 27V DC power supply, 400HZ power supply, aviation power supply.
News Center Co., Ltd.
