In the case of repetition mode of the pulse power supply, Fast charging circuit is designed to enhance the stabilize and charging efficiency of the DC power supply.
Several electrochemical determination methods to test the corrosion resistance of coated metals were described, such as DC resistor, AC resistor, potential time and charging curve.
叙述了涂层金属耐腐蚀性的几种电化学测定方法，例如直流电阻法、交流阻抗法、电位时间法、充电曲线法。
3
Moreover they are installed a USB interface for MP3, MP4, and cell phone charging and for 5V DC battery and internal batteries recharge.