According to the signal to be processed, the electronic circuit can be divided into analog circuit and digital circuit.  Analog circuit· is produce periodic change by the nature of the continuity of the natural physical variables, converting continuous physical natural variables for a continuous electrical signal, and the circuit operation of continuous electrical signal is called anal...

Switch only two opposite working condition, such as high level and low level, power and power relay coils, contacts connected and disconnected, PLC can be directly input and output switching signals. Some PLC (such as SIEMENS S7 Series) the switch is called the digital quantity.Analog is a physical quantity, such as continuous variation of voltage, temperature, pressure and speed of PLC, direct an...

In late 1970s, with the rapid development of microelectronics and computer technology, programmable logic controller has more computer function, not only replaced the hardwired logic with logic programming, but also increases the computation, data transmission and processing and other functions, to truly become an electronic computer industrial control device, and achieve miniaturization and minia...

Automotive temperature sensors - precision manufacturingBeijing Huaxia Risheng Technology Co. Ltd. for the automotive industry professional needs, all kinds of car temperature sensor, designed specifically for stable performance, long service life, good consistency. Automotive temperature sensor can be customized according to customer requirements, to provide you with one-stop automotive temp...