An electromagnetic cooker simulating an open flame and its power control method

Abstract

The invention is applied to the field of electromagnetic equipment, and provides an electromagnetic oven simulating naked flames, and a power control method of the electromagnetic oven. The electromagnetic oven comprises a direct-current power source, a pulse driving circuit, a resonant capacitor, a coil, a controller and a transformer, wherein the direct-current power source outputs a direct-current voltage to the pulse driving circuit, and the pulse driving circuit drives the input direct-current voltage to output pulse voltage signals according to control signals of the controller; the resonant capacitor is connected with the primary terminal of the transformer so as to form a resonant loop; the secondary terminal of the transformer is connected with the coil, and the secondary terminal of the transformer is used for outputting an alternating power source so as to drive the coil to generate an alternating magnetic field. Due to the separation of the transformer, when the electric inductance is changed as the material of a pot is changed or the pot is lifted, resonant frequency cannot be changed, so that the condition that devices are damaged due to the sudden current increase of the pulse driving circuit can be avoided.

Description

technical field [0001] The invention belongs to the field of electromagnetic equipment, in particular to an electromagnetic cooker simulating an open flame and a power control method thereof. Background technique [0002] Traditional commercial kitchen utensils are generally gas and oil stoves, which directly transfer heat to the bottom of the pot through an open flame, so that the pot heats the ingredients through heat transfer. In the process of heating with an open flame, its heating efficiency is not high, and harmful gases will be produced during the combustion process. Gas stoves are also prone to gas leakage during use, and dangerous accidents such as poisoning and explosions are prone to occur. [0003] In order to overcome the above-mentioned defects of traditional kitchen utensils, by using an electromagnetic heating induction cooker to heat without an open flame, the heating efficiency is higher, and there will be no air leakage accidents, which effectively improv...

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Problems solved by technology

[0005] The object of the present invention is to provide an electromagnetic oven that simulates an open flame and its power control method to solve the problem of driving the switch tube when the change of the resonant inductance makes the driving frequency perceptual area or capacitive area of ​​the electromagnetic oven reach the resonance area in the prior art. The problem of damage to the device caused by the sudden increase of current

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