Abstract: |
An aerosol delivery device is provided that includes a power source, a heating element, a switch coupled to and between the power source and the heating element, and processing circuitry coupled to the switch. The processing circuitry outputs a PWM signal during a heating time period to cause the switch to switchably connect and disconnect the output voltage to the heating element to power the heating element. The processing circuitry outputs a pulse of known current to the heating element, and measure voltage across the heating element, between adjacent pulses of the PWM signal. And the processing circuitry calculates the resistance of the heating element based on the known current and the voltage, calculates the temperature of the heating element based on the resistance, and adjusts a duty cycle of the PWM signal when the temperature deviates from a predetermined target. |
Inventor: |
Novak, III, Charles Jacob (Winston-Salem, NC, US); Daugherty, Sean A. (Yadkinville, NC, US); Galloway, Michael Ryan (Winston-Salem, NC, US); Wood, Jason L. (Lexington, NC, US); Frisbee, Mark (Raleigh, NC, US); Lamb, Wilson Christopher (Hillsborough, NC, US); Henry, Jr., Raymond Charles (Green Cove Springs, FL, US); Findikli, Nadi (Clinton, NJ, US) |
Applicant: |
RAI STRATEGIC HOLDINGS, INC. (Winston-Salem, NC, US) |
Face Assignee: |
N/A |
Filed: |
2019-10-30 |
Issued: |
2020-05-21 |
Claims: |
24 |
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US20200154787
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1. An aerosol delivery device comprising:
(5)
(6)
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7. An aerosol delivery device comprising:
(2)
(5)
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13. A method of controlling an aerosol delivery device including a power source configured to provide an output voltage, and a heating element powerable to vaporize components of an aerosol precursor composition and thereby produce an aerosol, the heating element having a resistance that is variable and proportional to a temperature of the heating element, the method comprising:
(5)
(5)
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19. A method of controlling an aerosol delivery device including a power source configured to provide an output voltage, and a heating element powerable to vaporize components of an aerosol precursor composition and thereby produce an aerosol, the method comprising:
(2)
(3)
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