65W GaN PD charger Capacitor Choosen
What’s is PD Charger ?
PD charger, PD means Power Delievery, The full name is USB Power Delivery, which is a fast charging standard introduced by the USB standardization organization, and it has reached version 3.0. A device that charges other electrical appliances. The equipment adopts high-frequency power supply technology, uses intelligent dynamic adjustment charging technology, and uses power electronic semiconductor devices to convert alternating current with constant voltage and frequency into direct current. It is generally composed of flexible circuit boards, electronic components, etc., and its designed circuit The working frequency can be divided into industrial frequency machine and high frequency machine, which are widely used in various fields, especially in the field of life, and are widely used in common electrical appliances such as mobile phones and cameras. Since mobile phones are charged through the USB interface, the USB standardization stipulates that the voltage and current must be adjusted through the USB and PD protocols. Through such a unified protocol, all mobile phone users can better enjoy the fast charging technology, which is convenient for everyone to use. Chargers are classified according to the working frequency of the designed circuit, and can be divided into power frequency machines and high frequency machines. The industrial frequency machine is designed based on the traditional analog circuit principle. The internal power components of the machine (such as transformers, inductors, capacitors, etc.) In the environment conditions of the power grid, the resistance performance is stronger, and the reliability and stability are stronger than that of the high-frequency machine. The output parameters marked on the original charger (referring to the line charger): for example, output 4.4V/1A, output 5.9V/400mA... refer to the relevant parameters of the internal regulated power supply.
