PD Charger

GaN PD fast charging achieves high power output through high voltage and high current, so as to realize fast charging. Its output voltage can reach up to 21V, and its output current can reach 5A; therefore, the output filter capacitor will choose 25V voltage, large capacity, low ESR solid capacitors. A large enough capacity can ensure DC support, and a sufficiently low ESR can ensure the filtering effect. However, conventional 25V solid aluminum electrolytic capacitors have such a problem: the ability to withstand switching shocks is insufficient. Experimental data and market feedback show that after repeated charging and discharging of switches (including but not limited to frequent unplugging and plugging of fast charging), conventional 25V solid aluminum electrolytic capacitors will experience obvious capacity decay, accompanied by rapid ESR This will lead to the deterioration of the DC support capability of solid capacitors, the fast charging speed will be significantly reduced, and fast charging will no longer be fast charging! The rapid rise of ESR will lead to larger output ripple of fast charging, which will bring many negative effects! With fast charging, you will often encounter power outages when plugging and unplugging, so fast charging must be able to withstand frequent charging and discharging! In view of this, here we recommend the solid aluminum electrolytic capacitor developed by YMIN that is resistant to frequent switching charge and discharge. Its performance characteristics are as follows.