Electronic cigarette and method for controlling electronic cigarette emitting light

摘要

An electronic cigarette and a method for controlling an electronic cigarette emitting light are provided, the electronic cigarette includes a microcontroller, a light emitting unit and a power supply unit; wherein the microcontroller is electrically connected to the power supply unit, the light emitting unit is electrically connected to the microcontroller and the power supply unit; the power supply unit is configured to supply power to the microcontroller and the light emitting unit; the microcontroller is configured to control the light emitting unit in different light emitting states, so as to indicate the different smoking states of the electronic cigarette; the different light emitting states of the light emitting unit includes: gradually brightening to a preset first brightness, gradually darkening from the preset first brightness to a preset second brightness and maintaining the second brightness within a preset period of time, and stopping emitting light.

主权项

1. An electronic cigarette, comprising a microcontroller, a light emitting unit and a power supply unit, wherein
the microcontroller is electrically connected to the power supply unit, the light emitting unit is electrically connected to the microcontroller and the power supply unit; the power supply unit is configured to supply power to the microcontroller and the light emitting unit; the microcontroller is configured to control the light emitting unit in different light emitting states, so as to indicate the different smoking states of the electronic cigarette; the different light emitting states of the light emitting unit includes: gradually brightening to a preset first brightness, gradually darkening from the preset first brightness to a preset second brightness and maintaining the second brightness within a preset period of time, and stopping emitting light; wherein the electronic cigarette further includes a smoke sensor which is electrically connected to the microcontroller and the power supply unit, the smoke sensor is configured to detect smoking signals, and to transmit the smoking signals to the microcontroller; wherein the light emitting unit includes a light emitting diode; wherein the microcontroller is configured to receive a first smoking signal, and then control the light emitting diode to brighten gradually until the brightness of the light emitting diode reaches a preset first brightness; wherein the microcontroller is further configured to determine whether the first smoking signal stops, if stops, then controls the light emitting diode to darken gradually until the brightness of the light emitting diode reaches a preset second brightness; wherein the microcontroller is further configured to begin to timekeeping when the brightness of the light emitting diode reaches the preset second brightness; if the length of timekeeping is less than or equal to the preset period of time, and the microcontroller receivers a second smoking signal, then the microcontroller controls the light emitting diode to brighten gradually from the second brightness, until the brightness of the light emitting diode reaches the preset first brightness; if the length of timekeeping is more than the preset period of time, and the microcontroller has not received the second smoking signal yet, then the microcontroller controls the light emitting diode to stop emitting light; wherein a first output port of the microcontroller is connected to a cathode of the light emitting diode through a resistor R1; a second output port of the microcontroller is connected to the cathode of the light emitting diode through a resistor R2, and a first input port of the microcontroller is connected to the smoke sensor; wherein the electronic cigarette further includes: a voltage regulation circuit, a switching circuit and an atomizer; the voltage regulation circuit is connected to the atomizer, the power supply unit and the microcontroller, and is configured to regulate the voltage of the power supply unit so as to output a constant voltage to the atomizer; the switching circuit is connected to the atomizer, the power supply unit and the microcontroller; the microcontroller controls the switching circuit turning on or off according to the smoking signal detected by the smoke sensor, further connects or cut off power supplied from the power supply unit to the atomizer; wherein the voltage regulation circuit includes a MOSFET Q1; and the switching circuit includes a MOSFET Q2; a first pulse output port of the microcontroller is connected to a gate of the MOSFET Q1; a drain of the MOSFET Q1 is connected to the atomizer; a source of the MOSFET Q1 is connected to the power supply unit; a third output port of the microcontroller is connected to the gate of the MOSFET Q2; the source of the MOSFET Q2 is grounded and is connected to the power supply unit, and the drain of the MOS transistor Q2 is connected to the atomizer.