The electric alarm flash lamp circuit of transistors

Published:2011/7/6 1:38:00 Author:qqtang | Keyword: electric alarm, flash lamp | From:SeekIC

There are two requirements on the electric flash device, the first is a high efficiency, the other is the constant conducting times. The latter depends on the energy stored in the flash capacitor, so it also depends on the flash pipe in use. In the figure is the electric flash device light source circuit with the auto power-off equipment, whose main technical data are as follows:Working voltage: 2.5v(-15%,+15%)Working current(average value):3APeak current:6ACapacitor selection:Charge voltage,V charge time,s capacitor C, μF 300 4 300 500 13 300 300 6.5 500 500 20 500 Transformer data:



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