Patent ID: 11937649
Assignee: HUIZHOU HAPPY VAPING TECHNOLOGY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC A  G  H  Y | IPC A  G  H

Claim 7:
8. A method of controlling a constant-power electronic cigarette protecting against dry-heating, wherein the method comprises steps of:
(1) setting a preset dry-heating resistance value, a preset power value, and a preset stand-by time value;
(2) determining, by means of a microcontroller chip, whether the electronic cigarette is in an on state or not, if no, go to next step; if yes, go to a step (4);
(3) unlocking an unlock switch button to perform a power on operation;
(4) determining, by means of the microcontroller chip, whether a starting switch is turned on or not, if yes, go to next step; if no, go to a step (10);
(5) by means of a resistance detection unit, detecting a resistance value of a heating coil and sending a resistance value signal to the microcontroller chip;
(6) controlling, by means of the microcontroller chip, a constant-power output control unit to output preset power to a heating resistor;
(7) determining, by means of the microcontroller chip, whether the resistance value of the heating resistor is increased or not, if yes, go to next step; if no, go to the step (4);
(8) by means of the resistance detection unit, detecting the resistance value and determining whether the resistance value is greater than the preset dry-heating value or not, if yes, stop output by the constant-power output control unit and control a red light to flash 5 times and go to a step (12); if no, go to next step;
(9) by means of the constant-power output control unit, adjusting a PWM output voltage according to the preset power value, to maintain constant-power output;
(10) turning off the starting switch, ending an using state, and entering a stand-by state;
(11) determining, by means of the microcontroller chip, whether a stand-by time exceeds the preset value or not, if yes, go to next step; if no, go back to the step (4);
(12) entering an off state.