Abstract Because of the confusion of cellular phone battery market, a kind of new function examination instrument of the cellular phone battery is needed urgently , this design is mainly to the Ni hydrogen cellular phone battery .according the refresh and discharge of the Ni hydrogen cellular phone battery characteristic,using single slice machine ,the text introduces a kind of design project of economic practical type cellular phone battery instrument .With hardware equipments and software of low cost and high credibility,the opponent machine refresh of battery function, turn on electricity function, circulate life span three examinations of index signs are carried out.And with single slice machine for core, the systerm mainly designs stabilized electric circuit source,and introduces the system total structure frame diagram and software flow chart. The system can carry out a control of a stabilized electric current value,through comparison between the gived electric current value and current electric circuit value with the correspond calculate way. 3 dynamic state figures tube show the solid hour refresh and discharge electric current value with give settle value of cellular phone, keystroke enactments electric current value.Each function index sign can independently examine, and can show a test result.
Key Words cellular phone battery single slice machine stabilized electric circuit source