Induction cooker technology development history Reviewing the history of the development of induction cooker technology in China. We can find that the development of induction cooker technology has gone through Several stages. 一. Digital circuit and Darlington tube period(1985-1990). It is characterized by multiple Darlingtontubes are used in parallel and controlled by digital circuits.   二. The period of general-purpose microcontroller and IGBT (1998-2006). 2006). It is characterized by a single IGBT, general-purpose microcontroller control (PWM technology).   Of course, in this process, some other technologies technology has also been developed, such as: fan (AC) current motor to brush DC motor to brushless DC motor; power supply technology (from transformer power to...

Abstract Based on the practical application, the article uses a series resonance method for the circuit topology of the commercial induction cooker, analyzes its different working status, and obtained the optimal switching process of the inverter power devices, theoretically calculated the relation between frequency and phase angle. The power regulation is achieved by a combination of “pulse width modulation (PWM) mode” and “phase-locked loop control”. Based on this, a series resonant inverter test prototype is built and verified the conclusion by experiments. It has a strong application background to solve practical problems. Keywords:inverter; induction heating; series resonant; phase-locked control; commercial induction cooker   Commercial...

Appliance Research of IGBT in Induction Cookers   Abstract: This article first introduces the application of IGBT in induction cookers, analyzes the various control circuits of induction cookers, and according to the most common application method of IGBT in induction cooker, analyze the possible failure of IGBT. According to the most common application method of IGBT in induction cooker, this article analyzes the possible failure of IGBT, proposes the matters that should be paid attention to during the application of IGBT in induction cooker, and improves the reliability of IGBT. In order to achieve the purpose of improving the safety and reliability of induction cooker. Introduction:   The induction...

An induction cooker is also known as an induction stove, the first home induction cooker was born in Germany in 1957. 1972, the United States began to produce induction cookers, in the early 1980s in Europe, America and Japan began to sell induction cookers. The principle of induction is the phenomenon of electromagnetic induction, that is, the use of alternating current through the coil to generate a constantly changing direction of the alternating magnetic field, it is in the alternating magnetic field of the conductor's internal that appear vortex current (the reason can be referred to Faraday's law of electromagnetic induction), which is the vortex electric field to promote the conductor...