What is all-solid-state high-frequency heating power supply

All-solid-state induction heating power supply All-solid-state induction heating power supply refers to all kinds of power transistors, such as MOSFET, IGBT and other power devices induction heating power supply, also known as modern induction heating power supply. "Solid-state" induction heating power supply is for the old thyristor and vacuum tube induction heating power supply. It has the advantages of small size of power supply, low loss, high conversion efficiency of inverter, easy operation and control, and safety number. All-solid-state induction heating power supply has the following characteristics: (1) the basic theory of the circuit has not changed much, due to the use of new power devices, circuits and realization of the technology has been a great development; (2) the power rectifier and inverter circuit devices more than the use of modular devices instead of a single power device. In order to achieve greater power, the use of power devices in series, parallel or series-parallel; 3) control circuits and protection circuits using a large number of digital integrated circuits, special-purpose integrated circuits, to simplify the design of the circuit, improve the reliability of the system; 4) new circuit components, such as non-inductive capacitor modules, non-inductive resistors, power ferrite applications, etc.; 5) a wide range of frequencies, from 0.1 - 400kHz Covering the range of medium frequency, high frequency and ultra audio; 6) High conversion efficiency and obvious energy saving. Using transistor inverter load power factor can be close to 1, can reduce the input power 22% - 30), reduce the cooling water consumption 44% - 70%; 7) the whole device is compact, compared with the electronic tube equipment can save 66% - 84% of the space; 8) the protection circuit is perfect, high reliability; 9) power supply inside, the output side of the high voltage is not high, high security. This equipment is widely used in welding, annealing, quenching, heat transfer and other processes, covering automotive, motorcycle parts, railroad rails, aerospace, weapons manufacturing, machinery manufacturing, electrical manufacturing and special metal processing and other industries, used for hot die forging before the heat transfer, the surface of the workpiece and the local quenching, annealing, brazing of electric motors, electrical appliances and valves, tungsten, molybdenum and copper tungsten sintering and melting and smelting of metals such as gold, silver, and so on.