Patent ID: 9059594
Filing Date: 2015-06-16
Classification: H02J

Abstract:
1. A battery switching charger, comprising: a pulse width modulation (PWM) signal generator, for generating a PWM signal; a switching circuit, comprising cascoded transistors controlled by the PWM signal for generating an output voltage; an inductor, coupled to the switching circuit, for receiving the output voltage; a resistor, coupled between the inductor and a charge terminal of the battery switching charger, wherein the charge terminal is connected to a battery when the battery is being charged by the battery switching charger; and an analog-to-digital converter, coupled to the PWM signal generator and the resistor, for receiving voltages of two terminals of the resistor to generate control data to the PWM signal generator; wherein the PWM signal generator adjusts a duty cycle of the PWM signal according to the control data.