US 12,251,509 B2
Vaporizer power system
Nicholas J. Hatton, Oakland, CA (US); and Val Valentine, San Francisco, CA (US)
Assigned to JUUL Labs, Inc., Washington, DC (US)
Filed by JUUL Labs, Inc., Washington, DC (US)
Filed on Jan. 25, 2023, as Appl. No. 18/101,550.
Application 18/101,550 is a continuation of application No. 16/657,857, filed on Oct. 18, 2019, granted, now 11,590,296, issued on Feb. 28, 2023.
Claims priority of provisional application 62/915,294, filed on Oct. 15, 2019.
Claims priority of provisional application 62/748,203, filed on Oct. 19, 2018.
Prior Publication US 2023/0201488 A1, Jun. 29, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 11/04 (2006.01); H02M 3/158 (2006.01)
CPC A61M 11/042 (2014.02) [A61M 2205/3368 (2013.01); A61M 2205/3576 (2013.01); A61M 2205/50 (2013.01); A61M 2205/8206 (2013.01); A61M 2205/8237 (2013.01); H02M 3/1582 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
measuring a current through a heating element of a vaporizer atomizer, the current supplied by a converter configured to electrically couple to a power source and to the heating element, the converter further configured to receive a first voltage from the power source and provide a second voltage to the heating element, the converter being a direct-current to direct-current (DC-DC) converter;
measuring a voltage over the heating element;
calculating a power and/or a resistance;
varying the second voltage to maintain a target power or a target temperature over the heating element;
measuring the first voltage from the power source; and
selecting an operating circuit for powering the heating element, wherein the operating circuit is a pulse width modulation control circuit when the first voltage modulated by the pulse width modulation control circuit is sufficient to achieve the target power or the target temperature of the heating element, and wherein the operating circuit is a DC-DC converter control circuit including the DC-DC converter when the first voltage modulated by the pulse width modulation control circuit is not sufficient to achieve the target power or the target temperature of the heating element.