1301720195

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1301720195 is a widely used compact photocoupler which provides higher common mode transient immunity. It consists of an infrared emitting diode, an integrated circuit and a photocoupling the infrared receiving element. It is suitable for signal transmission between different potential circuits, and its transmission current amount is relatively small. This article will discuss the application field and working principle of 1301720195.

The application field of 1301720195 is mainly in signal transmission and switch control. Its shell has the advantages of fast response speed, high isolation voltage, and wide isolating bandwidth. Meanwhile it has a strong ability to solve electromagnetic interference and high common mode transient immunity. Therefore, 1301720195 is widely used in various digital circuits, communication equipment, medical equipment, household appliances, industrial control and automotive electronics, commercial switching power supply and aerospace products.

1301720195 use optocoupler technology for signal transmission, and it has a sensitive element, including a infrared emitting diode, an integrated circuit and a photocoupling the infrared receiving element. When the signal provided by the coupling circuit passes through the infrared diode, the required current is driven in the diode, and the infrared light emitted by the diode is then received by the photo coupler, in which the current is triggered to open the switch. When the switch is opened, the current of the power side loop leads the feedback of the switch state to the coupling circuit side, which produces a signal to turn off the infrared diode.

1301720195 can be divided into two types, AC type and DC type. AC type uses zero-crossing technology to achieve better insulation when signal transmission. The zero crossing of this type of device corresponds to the maximum point of the AC waveform; with the rising or falling of the AC waveform, the conduction angle of the infrared LED changes. DC-type couplers always keep the LED on, and the value of the conduction current is determined by the signal divider connected to its ground. Compared to the AC type, the DC type requires less power but can only work with a DC voltage on the transmitter side of the coupler.

In summary, 1301720195 is a commonly used and highly organically coupled optoelectronic power module. 1301720195 has a wide application field and is mainly used for signal transmission and switch control, and it is suitable for various digital circuits, communication equipment, medical equipment, household appliances, industrial control and automotive electronics, commercial switching power supply and aerospace products. Its working principle is to use infrared light to open and close the switch by driving current. In addition, this type of coupler can be divided into two types: AC type and DC type.

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