Abstract: A power supply unit for an aerosol generating device includes a power supply, a heater connector connected to a heater, a voltage conversion IC, a circuit board, a capacitor, a first ground provided inside the circuit board and connected to the other end of the capacitor, a second ground provided inside the circuit board, insulated from the first ground inside the circuit board, and connected to the detection terminal, and a common ground configured to electrically connect the first ground and the second ground. On the second surface, no electronic component is provided in a common ground projection region overlapping with the common ground when viewed from a direction orthogonal to the circuit board.

Abstract: This inhalation device is provided with: a power source unit for supplying power; a heating unit for using power supplied from the power source unit to heat a substrate containing an aerosol source; a measurement unit for measuring a measurement value corresponding to the temperature of the heating unit; an operation unit, which is different from the heating unit, that runs on power supplied from the power source unit; and a control unit for controlling operation of the heating unit on the basis of heating settings stipulating a time series transition in a target temperature that is a target value for the temperature of the heating unit. The control unit implements correction processing to correct the measurement value in response to the start of power supply to the operation unit from the power source unit.

Abstract: A power supply unit for an aerosol generating device, includes a power supply, a heater connector connected to a heater configured to heat an aerosol source by consuming power supplied from the power supply, a case which constitutes a surface of the power supply unit, and a sensor which is disposed in the vicinity of the case and is configured to output a value related to a temperature of the case. Protection control for prohibiting one or both of charging of the power supply and discharging from the power supply to the heater is executed based on an output value of the sensor.

Abstract: A power supply unit for an aerosol generation device that generates an aerosol by heating an aerosol source, the power supply unit including: a power supply; a connector electrically connectable to an external power supply; a first load; a charging IC including an input terminal connected to the connector, a charging terminal connected to the power supply, and an output terminal connected to the first load, and configured to convert electric power input to the input terminal and output the converted electric power from the charging terminal; and a discharge path configured to connect the power supply and a second load without passing through the charging IC, in which the charging IC is configured to supply electric power input from the power supply to the charging terminal to the first load via the output terminal.

Abstract: A power supply unit of an aerosol generation device which a heating unit is attachable to and detachable from includes: a secondary battery; a case forming a surface of the power supply unit; a chassis accommodated in an internal space of the case and made of an insulating resin; a plurality of magnets held by the chassis with a gap therebetween; an inner member covering a side surface of the chassis; and an outer member covering an outer surface of the inner member. The inner member includes a plurality of through holes exposing the plurality of magnets, and the outer member is replaceably fixed by the plurality of magnets exposed from the plurality of through holes.

Abstract: A power supply unit of an aerosol generation device includes: a power supply; a heater connector to which a heater is connected; a controller configured to control supply of power from the power supply to the heater connector, a charging IC including an input terminal and a charging terminal connected to the power supply and configured to convert power input to the input terminal and output the power from the charging terminal; a receptacle including a power supply terminal and a data terminal and electrically connected to an external power supply; a power supply line connecting the power supply terminal and the input terminal; a data line connecting the data terminal and the controller; first protective components on the power supply line; and a second protective component on the data line. The number of the first protective components is larger than the number of the second protective component.

Abstract: A power supply unit for an aerosol generating device includes a power supply, a heater connector connected to a heater configured to heat an aerosol source by consuming power supplied from the power supply, a connector electrically connectable to an external power supply, a charging IC which includes an input terminal connected to the connector and a charging terminal connected to the power supply, and is configured to convert power input to the input terminal and output power which is converted from the charging terminal, and a first load having one end connected in parallel with the input terminal. The charging IC is configured to supply power input from the power supply to the charging terminal to the first load via the input terminal.

Abstract: A power supply unit of an aerosol generation device includes: a power supply; a heater connector to which a heater configured to heat an aerosol source by consuming power supplied from the power supply is connected; a first sensor disposed in the vicinity of the heater or the power supply and configured to output a value related to a temperature of the heater or a value related to a temperature of the power supply; and a second sensor provided at a position separated from the first sensor and configured to output a value related to a temperature at the position. At least one of the output value of the first sensor and the output value of the second sensor is abnormal, at least one or both of charging of the power supply and discharging from the power supply to the heater are temporarily prohibited.

Abstract: A circuit for an aerosol generation device includes: a heater connector to which is connected a heater that consumes power supplied from a power supply and heats an aerosol source; a controller that includes a first communication terminal and a second communication terminal for serial communication, and controls supply of power from the power supply to the heater; a first IC that is a separate entity from the controller and that includes a third communication terminal for serial communication; a second IC that is a separate entity from the controller and the first IC, and that includes a fourth communication terminal for serial communication; a first communication line that connects the first communication terminal and the third communication terminal; and a second communication line that connects the second communication terminal and the fourth communication terminal and that does not have an electrical contact with the first communication line.

Abstract: A power supply unit for an aerosol generation device configured to operate in a sleep mode, includes: a power supply; a heater connector to which a heater configured to heat an aerosol source by consuming power supplied from the power supply is connected; a controller configured to control a supply of the power from the power supply to the heater; and a first electronic component configured to operate by a first accessory voltage generated from the power supply and separating from the controller. The first accessory voltage is not supplied to the first electronic component when the power supply unit operates in the sleep mode.

Abstract: A power supply unit for an aerosol generating device, includes a power supply, a heater connector, a first plus-side circuit, a second plus-side circuit having one end connected to the positive electrode, including a second plus-side switch, and connected in parallel with the first plus-side circuit, a minus-side switch connected to the negative electrode, and a controller configured to execute predetermined control based on a voltage applied to the fixed resistor or the heater connector when the first plus-side switch and the minus-side switch are ON. One or both of a first condition in which the first plus-side switch is different from at least one of the second plus-side switch and the minus-side switch and a second condition in which the second plus-side switch is different from the minus-side switch is satisfied.

Abstract: A power supply unit of an aerosol generation device includes: a power supply; a heater connector to which a heater configured to heat an aerosol source by consuming power supplied from the power supply is connected; a controller configured to control supply of power from the power supply to the heater and including a power supply terminal to which power for operation is input; a restart circuit configured to restart the controller; and an IC including the power supply terminal to which the power for operation is input and that is separated from the controller. The power supply terminal of the controller is configured to be supplied with a second system voltage generated from the power supply, and the power supply terminal of the IC is supplied with a first system voltage generated from the power supply even while the controller is restarted by the restart circuit.

Abstract: A power supply unit for an aerosol generating device, includes a power supply, a heater connector connected to a heater configured to heat an aerosol source by consuming power supplied from the power supply, thermistors, thermistor connectors connected to the thermistors, a first circuit board, and a second circuit board separate from the first circuit board. The heater connector is disposed on the second circuit board of the first circuit board and the second circuit board. The number of the thermistor connectors disposed on the first circuit board is larger than the number of the thermistor connectors disposed on the second circuit board.

Abstract: A power supply unit for an aerosol generating device, the power supply unit includes: a power supply; a heater connector to which a heater configured to heat an aerosol source by consuming a power supplied from the power supply is connected; a controller configured to control a supply of a power from the power supply to the heater and including a power supply terminal configured to receive a power for operation; a switch configured to connect the power supply and the power supply terminal of the controller; and a restart circuit configured to control opening and closing of the switch. The restart circuit performs a first operation of opening the switch when a restart condition is satisfied, and performs a second operation of closing the switch after performing the first operation.

Abstract: A power supply unit for an aerosol generation device including a plurality of boards including a first board. The power supply unit also includes a control unit configured to control supply of power to a heater configured to heat an aerosol source using the power supplied from a power supply, a resistor arranged in a path to which a current output from the power supply flows, and a measurement circuit configured to measure a state of the power supply using the resistor. The resistor and the measurement circuit are arranged on the first board.

Abstract: A power supply unit for an aerosol generating device, the power supply unit: a power supply; a power supply connector to which the power supply is connected; a heater connector to which a heater configured to heat an aerosol source by consuming a power supplied from the power supply is connected; a controller configured to control a supply of a power from the power supply to the heater; a first circuit board on which an electronic component is mounted; a second circuit board on which an electronic component is mounted and which is separated from the first circuit board; and a step-up IC configured to step up a voltage supplied from the power supply and output the stepped-up voltage to the heater. The power supply connector and the step-up IC are not mounted on the second circuit board, but are mounted on the first circuit board.

Abstract: A power supply unit for an aerosol generation device includes a connector to which a heater for heating aerosol source is connected, a control unit for controlling supply of power to the heater and charge operation of the power supply, and a measurement circuit for measuring state of the power supply. The control unit has a first terminal for receiving information having correlation with the state of the power supply and acquires first index according to the information supplied to the first terminal. The measurement circuit has a second terminal for receiving information having correlation with the state of the power supply and generates second index according to the information supplied to the second terminal and provides the second index to the control unit. The control unit controls the charge operation of the power supply in accordance with the first index and the second index.

Abstract: A power supply unit for an aerosol generating device includes a power supply, a heater connector connected to a heater, a charging IC, a receptacle electrically connectable to an external power supply and including a power supply terminal, a power supply line configured to connect the power supply terminal and the input terminal, a first protection component provided in the power supply line, a first board, and a second board separate from the first board. The charging IC is disposed on the first board. The receptacle is disposed on the second board. The first protection component is disposed only on the second board of the first board and the second board.

Abstract: A power supply unit for an aerosol generation device, includes a control unit configured to control supply of power to a heater configured to heat an aerosol source using the power supplied from a power supply and a charge of the power supply, and a measurement circuit configured to measure a state of the power supply, wherein the measurement circuit includes a detection circuit configured to detect that the state of the power supply is an abnormal state, and an output unit configured to output an abnormality notification in response to the detection by the detection circuit.

Abstract: A power source unit for an aerosol generation device comprises: a communication module including an integrated circuit portion and an antenna portion; and a power source configured to supply power for driving a heater configured to heat an aerosol source. The power source unit comprises a controller configured to control the supply of the power from the power source to the heater; and a circuit board on which the communication module and an electronic component are mounted. A first side edge portion closest to the communication module is located at a position closer to the antenna portion than the integrated circuit portion.