What is the principle of the band switch band switch
January 11 18:07:43, 2024
The two questions in this article are for everyone to explain, one is the principle of band switch, two-band switch.
What is a band switch?
I haven't understood the band switch, but I still want to learn the principle of learning it. I don't want it for anything else: live to learn old! Haha, this sentence really makes sense! I wonder if the band switch is the button switch we usually use? I think it should be! I am not too sure. I said above that I don't understand it, let alone its principle. So you take me to study and learn, sister needs you to explain the band switch principle!
The band switch is a very old name. In fact, it should be called a multi-tool multi-throw switch, because it can not only be used as a band switch, but also for other purposes. As for how many knives are needed (how many sets of contacts), look at the needs of your circuit. Of course, at least two or more groups can be called band switches. As for how many throws (how many stalls) you need, also according to your needs. From 2nd gear to more than 10th gear. If only the band switch is used, there are 4 sets of contacts, and a maximum of 6 sets of contacts are sufficient. For the gear position, how many bands are there, how many gears are needed, at least 2 gears. The "band switch" type is also diverse, and the common ones are rotary, push-pull, and push-button (key). The volume is also large and small.
The principle of the two-band switch
Close the power switch K2 and press the button switch K1. At this time, the crystal diodes V1 and V2 are turned on and the relay is closed. At the same time, the power source charges the capacitor C. When K1 is turned off, since C has been charged, it will discharge through R and V1V2, so that the transistor will continue to conduct and the relay will still pull. After a period of discharge, when the voltage between the two poles of C drops to a certain value, it is not enough to maintain the transistor to continue to conduct, and the relay is released. The time interval from the disconnection of K1 to the release of the relay is called the delay time. It is determined that when the R and C universities are generally 100 microfarads, the adjustable resistor R can be adjusted to obtain a delay time of 10 seconds to 90 seconds.
Material characteristic: Using high quality aluminum extruded shutter profiles, multi-layer painting or film layer surface have excellent scratch resistance function, not decay, wearable and anti-collision.Nice white profiles, accepting mass customization according to users requirements(light gray, brown, cream, wood, fused, sand color and light sand color ,etc.)
Integrated protection and decorative features together,the best replacement of traditional theft network security replacement; flexible way open ways, supporting hand control, group control. The door could be your safe rescue channel when in emergency.
When in state of close, support ventilation and lighting, this contribute to enhance the cooling and heating effect of air conditioner, ensure safety, comfortable, energy saving, noise isolation and aesthetics.
