US 11,653,704 B2
Heating engine control circuits and nicotine electronic vaping devices including the same
Niall Gallagher, Richmond, VA (US); Terrance Theodore Bache, Richmond, VA (US); Rangaraj S. Sundar, Richmond, VA (US); Jarrett Keen, Richmond, VA (US); Raymond W. Lau, Richmond, VA (US); and Eric Hawes, Midlothian, VA (US)
Assigned to Altria Client Services LLC, Richmond, VA (US)
Filed by Altria Client Services LLC, Richmond, VA (US)
Filed on Jul. 15, 2020, as Appl. No. 16/929,569.
Prior Publication US 2022/0015448 A1, Jan. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A24F 40/10 (2020.01); A24F 40/40 (2020.01); A24F 40/46 (2020.01); A24F 40/57 (2020.01); H02M 3/07 (2006.01); H03K 17/687 (2006.01); A24F 40/44 (2020.01)
CPC A24F 40/57 (2020.01) [H02M 3/073 (2013.01); H03K 17/687 (2013.01); A24F 40/10 (2020.01); A24F 40/44 (2020.01); A24F 40/46 (2020.01)] 28 Claims
OG exemplary drawing
1. A heating engine control circuit to control operation of a heater of a nicotine electronic vaping device, the heating engine control circuit comprising:
a rail converter circuit configured to convert a power supply voltage into a power signal based on a vaping enable signal, the vaping enable signal being a pulse width modulated signal; and
a gate driver circuit including an integrated gate driver, the integrated gate driver configured to control application of power to the heater to heat nicotine pre-vapor formulation drawn from a nicotine reservoir at the nicotine electronic vaping device based on the power signal, a first enable signal and a second enable signal.