Power generation device, transmission device, switching device

A power generation device comprising:

• a rotation member configured to rotate with a predetermined position as a supporting point by an externally applied operation force;
• and
• a supporting member configured to support the rotation member by attracting the rotation member with a magnetic force exerted at a predetermined portion of the supporting member,
• wherein the power generation device is configured to induce a current to a coil by causing a magnetic flux of a permanent magnet passing through the coil to fluctuate in cooperation with the rotation of the rotation member, and
• wherein when the operation force is applied in a first state in which the rotation member is supported by the supporting member by being attracted to a first portion and to a second portion of the supporting member at a first position and a second position, the rotation member transitions to a second state by rotating with the first position of the supporting member as a first supporting point, and further transitions to a third state by rotating with a position of the supporting member different from the first position as a second supporting point.