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| OPPHO Electronics Co., Ltd Add:Building G1, Dongke Industrial Par, Nanpu Village, Changping Town, Dongguan City, Guangdong Province Tel:86-769-83393855/83397855 Fax:86-769-83398055 Contact:Mr.Zhou/13925568556 E-mail:sales@oppho.com Website:www.oppho.com |
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Switch control signal design ideas : The purpose of this signal because of the design is to identify mini toggle switch and control actions . Therefore, if any of the action occurs on a switch to produce a pulse . If only switching pulse signal can only happen to know the action, without knowing what happened which switch action . Therefore, to identify the specific actions which switch must be what happened with the dual port RAM to decode the data . RF oscillator work , in the absence or non-conductive objects near the sensor electrode A , Vl emitter output RF signal voltage by VD1, VD2 detection , the formation of DC voltage signal , so that V2 conduction, relay K , its normally closed contacts disconnect the power supply of the load off . When someone or conductive objects near the sensor electrode A , the radio stops the oscillator , the V2 end , K release, it often feather contact connected to the load circuit power work Because the system of the two mini- toggle switch, a toggle switch is level , and the other toggle switch is pulsed , so long as the toggle switch according to the level of production of the corresponding operation of the pulse signal , then this signal with a pulse toggle switch logic signals generated by the original phase , you can get the desired purpose signal. When S1 is pressed , the equivalent of D, C, B, A four inputs the output artificial BCD code 0001 , then only ten output terminal Q1 output high , the light emitting diode LED2 is lit , indicating that the input signal is strobe. Meanwhile VTl transistor conduction, the first audio signal flows from the VTl of c, e pole , and from the " output " side output. |
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