The reason for the total loss of the switching power supply caused by the silicone light touch switch
The lower the output voltage of the silicone light touch switch, the greater the influence of the voltage drop of the rectifier tube. If the output voltage is below 5V, synchronous rectification must be used to achieve efficiency above 80%. However, synchronous rectification makes the circuit complicated, and at the same time, the driving loss will increase significantly at high frequencies, which limits the improvement of efficiency. When the output voltage increases, the diode reverse recovery loss and snubber circuit loss will increase significantly. The conduction voltage drop of the low output voltage power supply rectifier is the main factor affecting the efficiency of the whole machine. The conduction loss can be estimated by multiplying the forward voltage drop of the diode by the output current.
Silicone light touch switch filter loss Pf includes filter inductance loss and capacitance loss. If it is a continuous mode inductor, the main loss is the coil loss, and the core loss can be ignored. The capacitor has a loss on the series equivalent resistance Resr. In the inductance continuous mode, the capacitor ripple current is small, the capacitor loss is also small, and the entire filter loss is about less than 1% of the output power. If it is a flyback transformer, the Resr loss of the capacitor is greatly increased, and the filter loss is the capacitor loss. The rectifier circuit loss Pr includes the conduction loss caused by the forward voltage drop of the rectifier tube, the turn-off loss caused by the reverse recovery, and the snubber circuit loss to avoid the oscillating diode. Silicone tact switch supply
Because of its small size, long life, and light touch feeling, it has been widely used in many fields such as household appliances. With the continuous improvement of people's living standards, these household appliances are being updated faster and faster, and the number of their needs will become larger and larger. This is also the direction of the greatest potential for us to be optimistic about its development prospects.
Due to the increasing demand for silicone light touch switches, BZCN Bozhong Electric has become more and more strict on the production quantity and quality of this piece. While paying attention to quantity, it guarantees good quality and also provides good Price and after-sales service, BZCN Bozhong Electric Co., Ltd. closely follows the international advanced technology and is engaged in independent development of products: multi-function switches, tact switches, detection switches, slide switches, illuminated tact switches, key switches, micro switches, earphones Sockets, DC sockets, etc., advanced manufacturing equipment and testing equipment, as well as R&D and quality control centers composed of domestic and foreign experts, coupled with a high-quality workforce, scientific management methods and ISO9001 quality management system, to ensure that we are excellent Quality, good service, and very competitive price win the trust of customers! To buy silicone tact switch, come to BZCN Bozhong Electric silicone tact switch manufacturer.
The lower the output voltage of the silicone light touch switch, the greater the influence of the voltage drop of the rectifier tube. If the output voltage is below 5V, synchronous rectification must be used to achieve efficiency above 80%. However, synchronous rectification makes the circuit complicated, and at the same time, the driving loss will increase significantly at high frequencies, which limits the improvement of efficiency. When the output voltage increases, the diode reverse recovery loss and snubber circuit loss will increase significantly. The conduction voltage drop of the low output voltage power supply rectifier is the main factor affecting the efficiency of the whole machine. The conduction loss can be estimated by multiplying the forward voltage drop of the diode by the output current.
Silicone light touch switch filter loss Pf includes filter inductance loss and capacitance loss. If it is a continuous mode inductor, the main loss is the coil loss, and the core loss can be ignored. The capacitor has a loss on the series equivalent resistance Resr. In the inductance continuous mode, the capacitor ripple current is small, the capacitor loss is also small, and the entire filter loss is about less than 1% of the output power. If it is a flyback transformer, the Resr loss of the capacitor is greatly increased, and the filter loss is the capacitor loss. The rectifier circuit loss Pr includes the conduction loss caused by the forward voltage drop of the rectifier tube, the turn-off loss caused by the reverse recovery, and the snubber circuit loss to avoid the oscillating diode. Silicone tact switch supply
Because of its small size, long life, and light touch feeling, it has been widely used in many fields such as household appliances. With the continuous improvement of people's living standards, these household appliances are being updated faster and faster, and the number of their needs will become larger and larger. This is also the direction of the greatest potential for us to be optimistic about its development prospects.
Due to the increasing demand for silicone light touch switches, BZCN Bozhong Electric has become more and more strict on the production quantity and quality of this piece. While paying attention to quantity, it guarantees good quality and also provides good Price and after-sales service, BZCN Bozhong Electric Co., Ltd. closely follows the international advanced technology and is engaged in independent development of products: multi-function switches, tact switches, detection switches, slide switches, illuminated tact switches, key switches, micro switches, earphones Sockets, DC sockets, etc., advanced manufacturing equipment and testing equipment, as well as R&D and quality control centers composed of domestic and foreign experts, coupled with a high-quality workforce, scientific management methods and ISO9001 quality management system, to ensure that we are excellent Quality, good service, and very competitive price win the trust of customers! To buy silicone tact switch, come to BZCN Bozhong Electric silicone tact switch manufacturer.
