US 12,408,237 B2
Circuit for sensing and controlling heater voltage in aerosol generator
Young-je Kim, Seoul (KR)
Assigned to EM-TECH Co., Ltd., Gyeongsangnam-do (KR)
Appl. No. 17/777,161
Filed by EM-TECH Co., Ltd., Gyeongsangnam-do (KR)
PCT Filed Nov. 18, 2020, PCT No. PCT/KR2020/016226
§ 371(c)(1), (2) Date May 16, 2022,
PCT Pub. No. WO2021/101228, PCT Pub. Date May 27, 2021.
Claims priority of application No. 10-2019-0147655 (KR), filed on Nov. 18, 2019.
Prior Publication US 2022/0400535 A1, Dec. 15, 2022
Int. Cl. H05B 1/02 (2006.01); A24F 40/51 (2020.01); A24F 40/57 (2020.01); G01R 19/165 (2006.01); A24F 40/10 (2020.01)
CPC H05B 1/0244 (2013.01) [A24F 40/51 (2020.01); A24F 40/57 (2020.01); G01R 19/16576 (2013.01); H05B 1/0227 (2013.01); A24F 40/10 (2020.01); H05B 2203/035 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A circuit for sensing and controlling a heater voltage in an aerosol generator, the circuit comprising:
a battery configured to supply power;
a microcontroller;
a first FET connected to the battery and configured to turn on/off according to a sensing control signal output from the microcontroller;
a sensing resistor connected to the first FET;
a second FET connected to the battery and configured to turn on/off according to a heater control signal output from the microcontroller; and
a heater resistor connected to the second FET and to one end of the sensing resistor,
wherein an upstream end of the sensing resistor is connected to the microcontroller, and a downstream end of the sensing resistor has one side connected to the microcontroller and another side connected to the second FET.