Guangyuan Star charger is not a miscellaneous brand. The charger adopts high frequency power supply technology and advanced intelligent dynamic adjustment charging technology. The power frequency machine is designed based on the traditional analog circuit principle. Internal power devices (such as transformers, inductors, capacitors, etc. ) are relatively large, and generally the noise is relatively small during heavy load operation. However, the machine has stronger resistance, reliability and stability than the high frequency machine in the harsh power grid environment.