The era of electroplated frequency converters for electric heating tubes

The era of electroplated frequency converters for electric heating tubes

In the 1980s, the rapid development of large-scale and ultra large scale integrated circuit technology laid the foundation for the development of modern power electronics technology. The organic combination of fine processing technology of integrated circuit technology and high-voltage high current technology has led to the emergence of a new batch of fully controlled power devices. Firstly, the emergence of power M0SFET has led to the high-frequency development of small and medium-sized power supplies, and then the emergence of insulated gate bipolar transistors (IGBTs), bringing opportunities for the high-frequency development of large and medium-sized power supplies. The successive emergence of MOSFETs and IGBTs marks the transition from traditional power electronics to modern power electronics. According to statistics, by the end of 1995, power M0SFET and GTR had reached a parity in the power semiconductor device market, and replacing GTR with IGBT in the power electronics field had become a consensus. The development of new devices not only provides a higher frequency for AC motor variable frequency speed regulation, making its performance more perfect and reliable, but also continuously promotes the development of modern electronic technology towards high-frequency, providing an important technical foundation for efficient material saving and energy saving of electrical equipment, achieving small and lightweight, mechatronics integration and intelligence.

2. Application fields of modern power electronics

2.1 High efficiency green power supply for computers

The rapid development of computer technology has led humanity into the information society, while also promoting the rapid development of power technology. In the 1980s, computers fully adopted switch mode power supplies, taking the lead in completing the replacement of computer power supplies. Subsequently, switch power supply technology entered the fields of electronics and electrical equipment one after another.

The development of computer technology has proposed green computers and green power supplies. Green computers generally refer to environmentally friendly personal computers and related products, while green power refers to efficient and energy-saving power sources related to green computers, According to the regulations of the "Energy Star" program of the U.S. Environmental Protection Agency on June 17, 1992, if the power consumption of desktop PCs or related peripherals is less than 30 watts in the sleep state, they meet the requirements of green computers. Improving power efficiency is the fundamental way to reduce power consumption. As far as the 200 watt switching power supply with the current efficiency of 75% is concerned, the power supply itself consumes 50 watts of energy.

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