This article introduces the different character of the lithium battery and the NI-MH battery,against the current market,most of chargers is through the upper limit of voltage that the limit of hardware to prevent the circumstances of the overcharge and overdischarge.About this,to develop a kind of intelligent charger which can control by software.Through the High-level image programming language LabVIEW to imitate the hardware control system of battery charger,this is the software control of the charge.In this article,we put emphasis on the structure and functions of hardware system,include the charging of modules,testing, the temperature with the protection circuit or circuit discharge.On the main function for a large circuit, power has been sufficient protection tda2009. the battery through the charging of the current state of the real-time use of software to detect, to materialize. discharge control circuit to a pure load or discharge tube tip122 achieved through three levels of protection. by the design a set of modules based on labview language of lithium battery and NI-MH rechargeable battery charging devices control software and hardware driven circuit through the data collected from the docking,For the realization of the intelligent charging, enhance efficiency and extend their lifespan.
Keyword: LabVIEW，control circuit of charging, rechargeable battery,
power amplifying circuit
