IGBT master control board is a kind of master control board with a power range of 15KW-120KW, which consists of a panel, a master control board and two driving boards. It is mainly used in the heat treatment industry.
Introduction of IGBT main control board:
The main control board of high-frequency induction heating and two drivers are dominant. The high-frequency board adopts SG3525A as PWM pulse technically. The output pulse frequency range is 20KHZ—60KHZ, the pulse spacing is 180 degrees, and the overcurrent protection time can be adjusted independently. It can be applied to IGBT full-bridge inverter parallel resonance induction heating equipment with chopper voltage transformation and power adjustment.
Composition and structure of IGBT main control board:
The IGBT main control board is mainly composed of a panel, a main control board and two driving boards.
IGBT main control board is divided into low-frequency main control board and high-frequency main control board.
Brief introduction of high frequency main control board:
Because of the high-frequency and high-power induction heating equipment, rectifier tubes have been used as switching components for many years. The rectifier has short cycle, low efficiency (50%-70%) and poor load reliability, and the output voltage of the inverter fluctuates intermittently during the whole process of light load operation (voltage source inverter). Therefore, it is urgent to use IGBT semiconductor components to replace rectifier components in places with high frequency and high power. Induction heating equipment using IGBT semiconductor components has high efficiency and simple power circuit. The production and application are both convenient, and the IGBT high-power induction heating power supply is used to heat the product workpiece quickly, which is easy to control, and the quality of the processing technology is reliable. Therefore, it is a wise choice to use IGBT to complete the high-power induction heating power supply. The KS series products and KP series products produced by our company have high frequency induction heating control boards with data on, no adjustment, low pulse harmonic distortion, strong anti-interference, centralized operation, fast dynamic response time and various state maintenance instructions.
Power category: 15KW-120KW. This control board has less wiring, centralized operation and no need to adjust. In operation, the power supply voltage is 18V/1A for three-way communication and four 22V/0.5A power supplies for the full-bridge inverter IGBT drive circuit. It has over-current, over-voltage, water-cooling, high-frequency, low-frequency, and various state indications, and shows a switch-type Hall maintenance interface. This board can be used to assemble IGBT high-frequency induction heating equipment with chopper board and drive board.
Characteristics of high frequency IGBT control board:
IGBT high-frequency control board mainly uses SG3525A as PWM pulse generation, the output pulse frequency range is 20KHz—60KHz, the pulse spacing is 180 degrees, and the overcurrent protection time can be adjusted independently. It can be used for radio broadcasting and power adjustment of IGBT full-bridge inverter parallel resonant induction heating equipment. Power category: 10KW—120KW. This control board has less wiring, centralized operation and no need to adjust. In operation, the power supply voltage is double 18V/1A and four 22V/0.5A power supplies. It has over-current, over-voltage, water-cooling, and various state indications, and shows a switching Hall maintenance interface and a linear Hall maintenance interface, and has a full-bridge inverter IGBT drive circuit. This board can immediately assemble IGBT high-frequency induction heating equipment.
