Novel electronic cigarette control chip

Abstract

The invention discloses a novel electronic cigarette control chip. The novel electronic cigarette control chip is characterized in that a capacitance type chip head device is connected with a chip head capacitance detecting device through a constant current generation circuit and the chip head capacitance detecting device is connected with a drive and control circuit device. According to the novel electronic cigarette control chip, sensitivity and reliability of the electronic cigarette chip are effectively improved so that smog can be generated by an electronic cigarette under small sucking force and the phenomenon of smoking caused by spurious triggering is avoided. A series of problems that heat emission of the electronic cigarette is excessive, a plastic outer shell of the electronic cigarette is molten due to burning, the service life of the electronic cigarette is shortened, and a passing rate is low because of smoking operation through continuous spurious triggering for a long time of an existing electronic cigarette chip are effectively solved.

Description

technical field [0001] The invention relates to a novel electronic cigarette control chip. Background technique [0002] The electronic cigarette is powered by an internal battery, and the user's smoking action is sampled and detected through the internal processing chip. When the user's smoking is detected, the trigger signal is sent to the control circuit to drive the heating wire to atomize the e-liquid to generate cigarette smell, and at the same time control the corresponding display. circuit to realize the necessary display functions. Electronic cigarettes mainly include two parts: the first is sampling and testing, and the second is heating wire control. For the sampling detection part, there is currently a switch-type microphone for detection. When the user has a smoking action, due to the effect of air pressure, the positive and negative poles of the switch-type microphone are closed. After the control circuit detects that the positive and negative poles of the mic...

AI Technical Summary

Problems solved by technology

The introduction of capacitive microphones has greatly increased the sensitivity of the microphones. However, due to the complexity of the detection of the capacitance value, and due to the design process deviation of the conductive film and the capacitive microphones will be affected by environmental conditions, such as temperature, etc. It will affect the capacitance, so the capacitive microphone has a relatively high sensitivity, and at the same time, there are more factors affecting the reliability than the traditional switch microphone.

For the heating wire control part, the commonly used method is that when the smoking action is detected, the calculation circuit sends a trigger signal to the drive circuit to control the conduction of the driving power switch tube and heat the external heating wire. In this way, when the battery voltage is high When the switch tube is turned on, the current of the heating wire is relatively large, which will shorten the battery life

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