To each kind of standard source's request is the luminous intensity stability and the accuracy

and the life is long

this is decided by lamps and lanterns' careful manufacture and power source's stability

the operating current stability and the voltage surge is very big to the standard lamp's stability and the life influence. On the star calibrates the integral ball system is requests the guarantee to calibrate for the star on with the halogen tungsten lamp provides the standard the stationary stream power source

its stability request achieves 0.16%. This article introduced from the practical application angle has the soft start characteristic standard lamp stationary stream to actuate power source's principle of work and the application electric circuit

and increases through the adjustment third-level tube the method adjusts the soft start the time. Connects the high precision resistor through the electric circuit

gatheRS in its voltage computer circuit the electric current method to obtain 0.037% electric current stability

because each time starts the power source to be able to have the duplicated erroRS

converts into may achieve 0.043% electric current stability to the entire electric circuit. The experimental result indicated that 0.043% electric current lasting accuracy already definitely might satisfy the integral ball system light the change not to surpass 1% requests.