Steam generating device with adjustable power

Abstract

The invention discloses a steam generating device with adjustable power. The steam generating device with adjustable power comprises a PTC heater, a microprocessor and a control circuit, the control circuit comprises a power adjusting circuit and a current feedback circuit, a PWM signal output port of the microprocessor is electrically connected with the PTC heater through the power adjusting circuit, a current sampling port of the microprocessor is electrically connected with the PTC heater through the current feedback circuit, a voltage sampling port of the microprocessor is connected between the power adjusting circuit and the PTC heater, the microprocessor adjusts and controls the PTC heater to work through the power adjusting circuit according to signals collected and fed back by the voltage sampling port and the current sampling port, the steam generation amount can be accurately controlled, and the cooking effect is improved.

Description

technical field [0001] The invention relates to the technical field of steam generators, in particular to a steam generator with adjustable power. Background technique [0002] In the related art, steam cooking equipment usually has a built-in steam generator, which is used to generate steam by heating water and supply it to the cavity of the steam cooking equipment to achieve the effect of steaming food. A commonly used solution is to control the on-off of the AC steam generator through a relay. When the relay is turned on, the steam generator runs at a fixed power. When the relay is turned off, the steam generator stops working. The steam temperature in the body can flexibly adjust the output power, resulting in too slow steam replenishment speed, which can only achieve rough steam volume control, but cannot accurately control the steam volume, which affects the cooking effect. Contents of the invention [0003] The present invention aims to solve one of the problems ex...

AI Technical Summary

Problems solved by technology

A commonly used solution is to control the on-off of the AC steam generator through a relay. When the relay is turned on, the steam generator runs at a fixed power. When the relay is turned off, the steam generator stops working. The steam temperature in the body can flexibly adjust the output power, resulting in too slow steam replenishment speed, which can only achieve rough steam volume control, and cannot accurately control the steam volume, which will affect the cooking effect

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