Position detection circuit and electronic cigarette

A position detection circuit having a first switch module outputting a first state signal wherein the position detection circuit is connected to a processing circuit (200) for detecting whether a placement member is laced in a reset position, wherein the position detection circuit comprises:

• the first switch module (110), the first switch module (110) comprising a first end, a second end and a first switch (T1), the first switch module (110) configured to control on-off state of the first switch (T1) according to whether the placement member is placed in the first placement position, the first end of the first switch module (110) receiving system voltage (Vcc), the second end of the first switch module (110) connected to the processing circuit (200) and outputting the first state signal to the processing circuit (200) according to the on-off state of the first switch (T1);
• the first state signal being to detect whether the placement member is placed in a preset position, and a first ground resistor (R1) comprising a first ground resistor end and a second ground resistor end, the first ground resistor end of the first ground resistor (R1) connected to the second end of the first switch module (110), the second ground resistor end of the first ground resistor (R1) is grounded.