Electronic vaping device having pressure sensor
At least one example embodiment discloses a section of an electronic-vaping device including a pressure sensor configured to measure a current ambient pressure, the pressure sensor further configured to output the current ambient pressure measurement in accordance with a read request frequency, and a controller configured to determine a mode of operation of the electronic-vaping device, control the read request frequency based on the determined mode of operation, and detect a threshold pressure change based on the current ambient pressure and a baseline pressure.
1. A controller of an electronic vaping (e-vaping) device, comprising:
control circuitry configured to cause the e-vaping device to,
generate a control signal for controlling detection of whether a cartridge section is connected to a power supply section,
receive a detection signal based on the control signal,
detect attachment events based on the detection signal, the attachment events indicating whether the cartridge section is attached to or detached from the power supply section, and
enter a sleep mode if a first time period elapses after one of the detected attachment events; and
a cartridge detector to cause the controller to,
receive an input voltage from an anode of a connecting portion of the power supply section, the connecting portion detachably connecting the power supply section to the cartridge section,
divide the input voltage to generate an output voltage, and
generate the detection signal based on the output voltage,
the cartridge detector including,
a first terminal configured to receive the input voltage from the connecting portion of the power supply section,
a voltage divider configured to divide the input voltage to generate the output voltage, and
a second terminal configured to output the detection signal based on the output voltage, wherein the voltage divider includes,
a first resistive element connected to the first terminal;
a second resistive element connected to a common voltage; and
a first switching element connected between the first resistive element and the second resistive element, the first switching element being configured to receive a control signal to control a frequency at which the voltage divider generates the detection signal.
2. The controller of claim 1 , wherein the cartridge detector further comprises:
a second switching element configured to operate according to the output voltage to generate the detection signal.
3. The controller of claim 2 , wherein
the first switching element and the second switching element are transistors,
the control circuitry is configured to apply the control signal to a gate of the first switching element, and
the voltage divider is configured to apply the output voltage to a gate of the second switching element.