Patent ID: 7242187

Claim:
A Hall Effect switching circuit, comprising: a power supply apparatus for providing an operation power; a magnetic detecting apparatus, comprising: a magnetic north pole detecting unit, having a first sensing unit and a first comparator, detecting a field intensity of magnetic north pole for obtaining a first detected result by using the first sensing unit, and determining a voltage level of a first triggering signal outputting to a first output terminal in accordance to a compare result obtained from comparing the first detected result with a predetermined value by using the first comparator; and a magnetic south pole detecting unit, having a second sensing unit and a second comparator, detecting a field intensity of magnetic south pole for obtaining a second detected result by using the second sensing unit, and determining a voltage level of a second triggering signal outputting to a second output terminal in accordance to a compare result obtained from comparing the second detected result with a predetermined value by using the second comparator; and a buffer unit for receiving and buffering the voltage levels of the first triggering signal and the second triggering signal.