- 2024-05-10百变珠珠侠may
New circuit off the production of detector
Beginning of the word to buy the components of electronic test satellite into r-14, making diode articles (2) (twenty-two j thirty-three way to the extreme pipe = 1. What is the rectifier diode is a diode rectifier to the AC power into DC to semiconductor devices,franklin marshall pas cher, it is usually very composed by a PN, its internal structure shown in Figure 1 Figure 1 Schematic diagram of the internal structure of the rectifier diode rectifier diodes generally use silicon or germanium and other semiconductor materials, currently is more common silicon rectifier diodes . rectifier diodes with high breakdown voltage, reverse leakage current, good high temperature performance characteristics, usually high-voltage power rectifier diodes are manufactured using high purity silicon. rectifier diode junction area of ??this large, through more high current (up to thousands of security), but the frequency is not high, usually in the tens of kHz or less. rectifier rectifier diode main parameters are: Maximum rectified current IOM, the reverse breakdown voltage and maximum reverse voltage URB URM ,christian louboutin pas cher, the maximum reverse current IRM. maximum rectifier current IOM: the maximum current is rectified by the diode to allow the maximum average forward current value when the current exceeds the allowable value, the diode will overheat and burn. reverse breakdown voltage URB and the maximum reverse voltage URM: refers to the diode reverse breakdown voltage value, after the breakdown of the reverse current surge, the diode one-way conductivity is destroyed, usually manual work given the maximum reverse URM voltage reverse breakdown voltage is about half or two thirds of the URB to ensure the safe operation of the diode Maximum reverse current IRM: refers to the increase in the maximum diode reverse voltage when the reverse current. IRM more small, the tube's conductivity one-way better 3. rectifier diode rectifier diode applications using one-way conductive to current direction and intensity as to make periodic changes ◆ Zhouli Yun Liu Hangjun AC converted to a one-way pulsating DC circuits, we call rectifier circuit. rectifier circuit is divided into half-wave rectifier circuit and full-wave rectifier circuit two. half-wave rectifier circuit shown in Figure 2, half-wave diode rectifier is to use one-way conductivity will be through the power transformer T buck output voltage Vo increases rectifier diode D. in AC positive half-cycle (see Figure 3), the rectifier diode D turns on, the output pulsating DC voltage to the load RL; in the AC half cycle, the rectifier diode D does not turn, not pulsating DC voltage output to the load RLo 2 half-wave rectifier circuit full-wave rectifier circuit shown in Figure 4, full-wave rectifier is to use the power transformer T secondary winding center tap grounded. The other ends of the constitute a diode connected in the positive half-cycle alternating current (see Figure 5), the rectifier diode D1 conduction, D2 is not conducting, the AC can be purchased from the local electronics market and I provided for reference PCB, in principle, only one that is made to pass off the detector pen, easy to carry and if there are no conditions can also be welded directly to the component board in the wildcard, the effect is the same. this circuit off the detector, not only simple in principle is very simple production , as long as welding is correct, can succeed without debugging and finally off the detector circuit audio amplifier into a whiteboard pen used within and fixed, leads from the cartridge at the probe, while the audio signal generator can be placed in a small box 80mmX25mm homemade, small alligator clip leads to one end of the box. Insert the batteries, thus the finished using before the press the switch K. to the audio signal generator, a trigger signal to make it audible signal, then the end of the alligator clamp onto the line, the final audio amplifier probe contact with the other end of the line if the circuit is fault-free circuit, then the audio signal generator of the music audio signal to be transmitted through the line to another line end, the audio amplifier receives the signal will be sent to some wonderful music. On the contrary if the circuit is open circuit fault, do not send the audio signal amplifier musical sound, or only a small noise. Special attention is paid This detector detects 100m within the line very effective operation under the right circumstances, the correct rate of 100%, but if the measured line beyond this range, or line bypass particular complex, it is the correct rate will decline, so should be noted that the actual use of them in the production of audio signal amplifier, the circuit should be the ground leads, make the case, the use of hand contact with people, this can increase the speaker volume, so that detection sensitivity increases. because The reader self-analysis here basically completed the entire detector, but it's still many problems, such as its proximity to the detection,abercrombie paris, bulky,abercrombie fitch paris, weak anti-interference ability, etc. all need to improve. Interested readers can be improved. exposed ] Il ink Hu Shu two
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