Coupler belongs to the decoration industry coupler Encyclopedia name. The coupler entry is composed of coupler, coupler principle, coupler price, and so on.
The role of the coupler
In the microwave system, it is often necessary to divide the microwave power into several ways, which is the power allocation problem. The component that realizes this function is called the Power allocates the device namely coupler, mainly include: directional coupler, Coupler power distributor and various microwave branch devices, these components are generally linear multiport mutual easy network.
Coupler: It is also called a photoelectric isolator, referred to as Optocoupler. It is composed of three parts, namely the reception of Light, Coupler the transmission of light and the amplification of signals. Its working principle is simply composed of two parts, the first to be able to light-emitting diode series, until the signal line, when the outside signal comes in, the light-emitting diode can turn the signal into a light signal, and then send them out. The second is to connect the photosensitive diode to the control line, Coupler and its light signal will lead to a photosensitive diode conduction. Through such a simple two-step implementation of the external input and internal input signal electrical isolation! Coupler It has a strong anti-interference, long service life, small size and so on characteristics and advantages.
The coupler is a part of the power, which is named after the size of the coupling port. For example, the 6dB coupler is the coupling port attenuation 6dB, 10dB coupler coupling port attenuation 10dB. Coupler Its pass-through port attenuation is determined by the size of the coupler. For example, the straight-through port attenuation of the 6dB coupler is about 1.5dB or so, 10dB coupler through the mouth attenuation of about 0.8. The commonly used coupler has 5dB, 6dB, 7dB, 10dB, 15dB, 20dB, 25dB, 30dB, etc., and its straight-through mouth attenuation is not the same.
The main function of the coupler is to separate the power, Coupler which is named by the size of the coupling port.
In the microwave system, it is often necessary to divide the microwave power into several ways, which is the power allocation problem. The component that realizes this function is called the Power distribution component namely coupler, mainly include: directional coupler, power distributor and various microwave branch devices.
The photoelectric coupler is an electric one-light electric conversion device which transmits electrical signals in light. It consists of two parts, the luminous source and the light emitting device. The luminous source and the light emitting device are assembled in the same airtight shell, which is isolated from each other by using transparent insulator. The pin of the source is the input, the receiver of the light is the output end, Coupler the common light-emitting diode, the light device is photodiode, photosensitive transistor and so on. There are many kinds of photoelectric coupler, such as photodiode type, photoelectric transistor type, photosensitive resistor type, optically controlled thyristor type, photoelectric Darlington type, integrated circuit type, etc.