外文翻譯---防盜電話報警控制器電路的設(shè)計

1、Burglar telephone alarm controller circuit designSummary ：With the continuous development of electronics, applied electronics is steadily moving toward a new era. Electronic technology, electronic design, electronic prod

2、ucts, such as the ever-changing update to the people's lives is a big convenience. This paper introduced a confusing phone-based anti-theft controller circuit, if you are away from home, as long as you make a phone c

3、all to home, your home will sound tape recorders, dark, the interior lights will be bright. The circuit by the signal input circuit, trigger circuit, driver circuit, light sensors, integrated electronic switch circuit. T

4、he design detail of the anti-theft alarm detection phone part of the whole production process, but also by the content of the design done a kind of success.Keywords: telephone anti-theft electronic switchA, design of pur

5、pose and meaning 1. Learning basic theory in practice comprehensive use of the initial experience, master the basic methods of electronic circuit design, the design procedure, the ability of training comprehensive design

6、, 2. Through the actual system application and operation, to deepen the understanding of the knowledge, 3. Through the assembly and debugging cultivation of practical skills, improve the analysis and the ability to solve

7、 practical problems. Second, design planning 1, design idea Confuse anti-theft telephone controller circuit, if you go out in the outside, as long as you to call home, your house will be issued a voice recorder, dark, in

8、door light will shine. This circuit by power supply circuit, signal input circuit, trigger circuit, drive circuit and photosensitive sensors, integrated electronic switch circuit composed. Figure 2 power circuit220V util

9、ity after transformer T step-down, output voltage, communication about 9V diode (VD1 ~ VD4) bridge rectifier, capacitance C1 filter out the high-frequency clutter after LM7805 feet, 1 to 2 feet grounding, 3 foot stable o

10、utput voltage, voltage for 9V. C2 further filter high frequency interference, supply circuit work, red issued diode is the power indicator light emitting diode, R1 is the current limiting resistor, light emitting diode c

11、urrent for normal work of 10mA. Transformer principle is very simple elfevident transformer is main function of variable pressure, also is change voltage. Transformer is principle electromagnetic induction technology, tr

12、ansformer has two independently of sharing a core of coil. Respectively called transformer subprime coil and primary coil. Current direction and size varies with time, transformer primary tong on ac, transformer core cre

13、ated alternating magnetic field, (including connect power of winding called primary coil, the rest of the winding called subprime coil. In the same frequency induction subprime is the ac voltage. The first level of trans

14、former winding of turms than equal voltage than. Transformer can only change ac voltage dc voltage, and do not change, because the direct current is not change, current through the transformer won't produce alternati

15、ng magnetic field, so only in subprime coil directly connected moment produces a instantaneous electric current and voltage. LM7805 is three terminal voltage stabilizer fig.03 shows: (1) the feet to the input voltage reg

16、ulator Ui, 3 feet for the grounding end; 2 feet for voltage stabilizing voltage Uo output terminal. LM7805 have 5V, 6V, 9V, 12V, 18V and 24V 15V, seven different fixed output voltage, which are widely used in various kin

17、ds of electronic equipment. Maximum output current for 1.5 mA.LM7805 stabilizer with internal over-current, thermal overload and output crystal figure 3 LM7805 tube feet body tube safety protection function, circuit used