基于单片机的低功耗电能收集充电器设计

Design of Electric Energy Collecting Charger Based on SCM

设计的一个由单片机控制的电能收集器作为一电能收集充电器,它的工作是从一直流10~20V电源中吸收电能,并尽可能大的电流流入可充电电池。通过开关电源来适应宽电压变化,且降低电源变换器自身的功耗,利用发光二极管的状态指示工作状态。通过单片机进行控制。加入了光电耦合器,用来解决单片机和充电模块的共地问题。在程序中对脉宽进行实时调节,采用PD算法,使直流电源变化器以最大功率输出。

This paper introduces a kind of design and program implementation of the energy collecting charger based on SCM.As an energy collecting charger,In order to make the electric current flow into the rechargeable Battery as large as possible,the system collect energy from a DC power supply.Controlling the Switching Power Supply to adjust the changing of the Wide voltage,Reduce power consumption of the Power converter,Knowing the Work status of the Electric circuit from the Diode.The microprocessor is a piece of SCM.To solve the SCM and the charging module grounding Problem,we put an photo coupler in it.Real-time-adjusting the Pulse Width,Using the PD algorithm.At last it get the output as large as possible.