DX series power inverter power inverter manufacturers DX Series DX series power inverter manufacturer price welcome to consult the DX series power inverter power inverter manufacturers DX Series DX series power inverter manufacturer price DX series power inverter power inverter manufacturers DX Series DX series power inverter manufacturer price frequency power is the AC mains through the AC → DC → AC conversion, pure sine wave output, the output frequency and voltage within a certain range is adjustable. It is different for motor speed control with variable speed controller, and also different from ordinary AC power supply. Ideal AC power supply is characterized by the frequency stability, voltage stability, resistance equal to zero, the voltage waveform is a pure sine wave (no distortion). Very close to the ideal frequency AC power supply, and therefore, more and more will be used as a standard power inverter power supply in order to provide the best use of electrical power supply environment, to facilitate an objective assessment of the technical performance of the advanced countries with appliances. There are two big power inverter types: linear amplification type and SPWM switching. Power inverter is a general term used in the country, more precisely, should be called AC power frequency converter, ie Ac power Frequency Converter, generally used to refer to abbreviations AFC. Throughout the history of the development of the basic frequency power with the development of electronic devices and development. 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Power characteristics of this period are: small power, precision, and low efficiency. 1980s, China embarked on the road of reform and opening up, at this stage, the import and export of equipment in mainland China gradually increased, especially the increase in microwave ovens and air conditioning appliances for representative share of exports, so the demand for power inverter power for testing. This part of the market demand for the application, the original power products can not meet, so the power supply manufacturers seek new technologies to expand the supply of power. According to the technical conditions and electronic devices, mainly to the development of two-way, one way is to maintain the same crystal type, multi-parallel approach to expansion; another way is to use the power transistor modules. Crystal multi-level series of ways, circulation problems need to be addressed, and low efficiency in the industrial production process, consume too much; crystal module power conversion system is slow to respond, limited power, low voltage, voltage at 600V, Output PAM uses filtering methods (for unilateral wave and low order filter), the output waveform distortion is large. Both methods produce power supply products still can not meet the growing demand, so the power load required frequency testing, the use of the motor generator drag way (M + G) to meet. After dragging the generator motor way (M + G) in the course, there is wear and tear, as well as the efficiency of conversion. Later reference to the US technology, the use of SCR do inverter power produced in this way, power can meet customers, good for the generator after replacing motor drive mode (M + G), but the series The product has a large disadvantage machine conversion process, the noise is very large, reaching 70dB <1m With the development of semiconductor technology in the late 1980s, Fujitsu produced the first generation IGBT, the electronic device feature integrates the advantages of GTR and MOSFET's switching speed, high flow capacity, it will soon be applied to the field of the inverter. With the powerful Mitsubishi, Semikron, Infineon and other manufacturers to join in IGBT field, making the rapid pace of development of IGBT, the accelerated replacement, IGBT switching speed and flow capacity to be further strengthened, so that it makes high-power inverter power production can be achieved.