It is understood that Guangdong Huali Electric is a national high-tech enterprise and a key innovation 500 high growth enterprises in Guangdong Province. The company is specialized in the production and development of 35kV and below high and low voltage switchgear, automatic control equipment, box type substation, high and low voltage components and other series of products.

Resistance in the circuit with "R" plus a number, such as: R15 for the number of 15 resistance. The main functions of resistance in the circuit are shunt, current limiting, voltage dividing, bias, filtering (combined with capacitor) and impedance matching.

ordinary optocoupler, the detection method of infrared light-emitting diode is generally referred to. For optocoupler with photosensitive triode output type, the detection method of photosensitive triode should be referred to when detecting the output end.

Electronic and communication engineering is an engineering field combining electronic technology with information technology to build a modern information society.

Electronic and communication engineering is an engineering field that combines electronic science with technology and information technology to build a modern information society. It uses the basic theory of Electronic Science and technology and information technology to solve the technical problems of electronic components, integrated circuits, electronic control, instrumentation, computer design and manufacturing and related fields of electroni...

In recent years, China's low-voltage electrical equipment market has maintained a stable and rapid development, but low-grade low-voltage electrical appliances are flooding the domestic market, and the competitiveness of high-end market is insufficient. Foreign enterprises have occupied the high-end market for a long time and continue to extend their tentacles to the low-end market. Domestic low-voltage electrical equipment enterprises are facing...