555 DGK—45L disinfection cabinet electronic control circuit

Published:2011/5/25 3:09:00 Author:TaoXi | Keyword: 555, disinfection cabinet, electronic control | From:SeekIC

The control circuit is composed of the AC step-down voltage stabilization circuit, the infrared heating circuit and the timing control circuit.etc. The single phase alternating current adds to the primary stage of the transformer T through the temperature limit fuse FU(10A, 150℃), after the function of step-down, rectification and voltage stabilization, the transformer T outputs the 9V DC voltage, this voltage adds to the single phase SCR's positive electrode through K1's normal closing contacts (1-3). AN1 is the power control button, you can conduct the SCR and control the connection of the power supply by pressing this button. AN3 is the infrared heating start button, if you press this button, the low electric potential of the 555 pin-2 sets the 555. The monostable timing circuit is composed of the 555 and R5，R6，C4，C5, the Temporary stabilization time td=1.1R6C5.



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