A single-tube induction cooker circuit and a single-tube induction cooker control method

Abstract

The invention discloses a single-tube electromagnetic oven. In the prior art, a rectifying circuit and a single-tube electromagnetic oven main circuit are included. The single-tube electromagnetic oven main circuit comprises an LC oscillating circuit used for converting electric energy into electromagnetic energy, a drive circuit connected with the LC oscillating circuit, and a controller connected with the drive circuit and further comprises a zero-voltage detection circuit used for detecting zero voltage of the input end of the single-tube electromagnetic oven main circuit and a zero voltagedetection circuit connected with the controller, the zero-voltage detection circuit is directly connected with the direct-current end of the rectifying circuit through the input end of the single-tube electromagnetic oven main circuit or a silicon controlled rectifier is arranged in the rectifying circuit, and therefore after powering on, the input end of the single-tube electromagnetic oven maincircuit generates zero voltage, and when the voltage is zero, starting and stopping of the single-tube electromagnetic oven main circuit can be controlled; current impact to the drive circuit duringstarting can be eliminated, the damage to the drive circuit can be reduced, and the noise generated during stopping is reduced. The invention further provides a corresponding single-tube electromagnetic oven control method. The above beneficial effects are achieved.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to a single-tube induction cooker circuit and a single-tube induction cooker control method. Background technique [0002] Induction cooker is a commonly used electrical appliance, which is convenient and safe to use, and has high energy conversion efficiency. It has a large number of applications in daily life, commercial cooking and industry. [0003] The commonly used single-tube induction cooker adopts the method of combining pulse width modulation and intermittent work for power control. When the power is high, the method of pulse width modulation is used to control the power, and when the power is low, the method of intermittent work is used to control the average power. [0004] figure 1 It is a schematic diagram of a single-phase single-tube induction cooker circuit in the prior art. figure 2 It is a schematic diagram of a three-phase single-tube induction c...

AI Technical Summary

Problems solved by technology

Therefore, the single-tube induction cooker in the prior art cannot be started and shut down frequently. When the power of the induction cooker is adjusted by the intermittent working method, the intermittent period is as long as tens of seconds, which has a great negative impact on the use effect.

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