By LEIDITECH | 15 March 2024 | 0 Comments
USB PDStatic surge protection for fast charging chargersTVS
USB PDFast charging chargers have become ubiquitous essential items in daily life，It can provide fast and convenient charging solutions for our various electronic devices，For example, smartphones and tablets，Laptops，wearable devices ，Cameras and camera equipment，car charger ，And some emerging IoT smart furniture products。The commonly used output voltages are 5V,9V,12V,15V,20V。
USB PDThe output interface of fast charging chargers usually needs to have anti-static and surge protection functions。This is to ensure that the device andcircuit boardreceive protection，Prevent damage to equipment caused by static electricity and surge currents during charging when just plugged in。Anti static and surge protection measures can help reduce the risk of equipment damage caused by voltage fluctuations or sudden currents，Improve the stability and safety of chargers。
Shanghai Leimao launchedUSB PDStatic surge protection scheme for fast charging interface，
The acceptable input range for this solution is 90 VAC ~ 265 VAC，The output range is 5 V ~ 20 V，The maximum output power is 65 W。 The following is a topology diagram， Add one at the output endTVS ，It can provide certain protection against electrostatic surges，Protect the output electronic devices of the rear stage，TVSmodel selection：Select based on the maximum DC voltage output。This topology is for reference onlyTVSPlaced in，Not as actualcircuit diagramuse（The actual circuit is quite complex）。
According to the output voltage demand，This plan is available for selectionTVS as follows：
ShanghaiLeiditech ElectronicsProfessional provision of electromagnetic compatibility for customersEMCDesign Services for，Provide laboratory testing for free testing
Shanghai Leiditech can solve the problemYPbPr/ YCbCrinterface ESD/EOSStatic surge problem
A Brief Discussion onS-VIDEOInterface electrostatic surge protection
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