System On Chip (SOC) chip special for electromagnetic induction heating controller

Abstract

The invention discloses a SOC chip special for an electromagnetic induction heating controller, which is internally integrated with a central processing unit (CPU), a first comparer, a second comparer, a third comparer, a fourth comparer, an operational amplifier, an Analog to Digital Converter (ADC), a programmable pulse generator, a communication interface, a state register, a counter, a NOR gate, an AND gate, an OC (open-collector) gate, a multipath switch and a latch, wherein the SOC chip is provided with a driving output end, a temperature sampling input end, a voltage sampling input end, a synchronous signal detection end, a load recoil high-voltage detection end, a surge voltage detection end and a surge current detection end. The SOC chip can be used for various electromagnetic induction heating products. After the special SOC chip is adopted, the design of the electromagnetic induction heating controller can be simplified drastically, the cost of the electromagnetic induction heating controller can be reduced and the quality and the manufacturing efficiency of the electromagnetic induction heating controller can be improved drastically.

Description

technical field [0001] The invention relates to an electromagnetic induction heating controller, in particular to a special SOC (System On Chip) chip for the electromagnetic induction heating controller. Background technique [0002] Due to the high efficiency of induction heating, low energy consumption, and mature technology, the current use of induction heating type cooking apparatus is increasing, such as induction cookers, IH rice cookers, and inverter microwave ovens. In addition, electromagnetic induction heating is also widely used in industries such as metal surface heat treatment and injection molding machine heating. [0003] The electromagnetic induction heating controller involves circuits such as power control, temperature detection, surge detection, recoil high voltage detection, and corresponding protection circuits. The traditional method is to use a general-purpose microprocessor to design, which has a long design cycle and high cost. At the same time, the ...

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Problems solved by technology

[0003] The electromagnetic induction heating controller involves circuits such as power control, temperature detection, surge detection, recoil high voltage detection and corresponding protection circuits. The traditional method is to use a general-purpose microprocessor to design, which has a long design cycle and high cost. At the same time, the circuit is complex , leading to high production and maintenance costs and poor stability

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