Electronic cigarette atomizer temperature compensation circuit and control method thereof

Abstract

The invention relates to the technical field of electronic cigarettes, in particular to an electronic cigarette atomizer temperature compensation circuit and a control method thereof. The circuit is arranged on a chip and connected with an atomizer and a power supply, and atomization silks are contained in the atomizer; the impedance of the atomization silks is varied with the temperature; and a circuit structure further comprises a calibration circuit module, an ADC collecting module and a PID control module. According to the electronic cigarette atomizer temperature compensation circuit, the critical atomization voltage and the process deviation voltage are removed simultaneously, thus the electronic cigarette atomization temperature is controlled more accurately, meanwhile the electronic cigarette atomization temperature can be accurately controlled according to atomization points of tobacco tar of different types, thus an electronic cigarette is sufficiently atomized, dry burning and insufficient atomization are avoided, and the taste of the electronic cigarette is improved.

Description

technical field [0001] The invention relates to the technical field of electronic cigarettes, in particular to a temperature compensation circuit and a control method for an electronic cigarette vaporizer. Background technique [0002] E-cigarettes use high-temperature atomization technology, and usually detect the temperature indirectly through the change of the resistance of the temperature-controlled heating wire at different temperatures. The main problems of this method include: first, the sampling amplifier offset introduces errors, resulting in inaccurate temperature estimation; second , the law of resistance changing with temperature is limited by physics, and the dynamics of the ADC cannot be fully utilized due to direct sampling by the ADC. Moreover, when the ADC collects in a large range, the acquisition accuracy is not enough, resulting in a large deviation in temperature estimation, which cannot guarantee the consistency of the taste of the electronic cigarette. ...

AI Technical Summary

Problems solved by technology

[0002] E-cigarettes use high-temperature atomization technology, and usually detect the temperature indirectly through the change of the resistance of the temperature-controlled heating wire at different temperatures. The main problems of this method include: first, the sampling amplifier offset introduces errors, resulting in inaccurate temperature estimation; second , the change of resistance with temperature is limited by physics, and the dynamics of ADC cannot be fully utilized directly by ADC sampling, and the acquisition accuracy of ADC is not enough when collecting in a large range, resulting in too large deviation of temperature estimation, which cannot guarantee the consistency of the taste of electronic cigarettes

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