Patent ID: 11953365
Assignee: CHENGLI LI
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 8:
9. The switching device of claim 2, wherein the detection circuit includes:
a first operational amplifier, having an inverting input terminal coupled to an output of the first position sensor, and a non-inverting input terminal coupled to a threshold voltage;
a second operation amplifier, having an inverting input terminal coupled to another threshold voltage, a non-inverting input terminal coupled to an output of the second position sensor and an output terminal of the first operational amplifier, and an output terminal coupled to its non-inverting input terminal and the switch; and
a unidirectional conducting element, having an input terminal coupled to the non-inverting input terminal of the second operational amplifier, and an output terminal coupled to the output terminal of the first operational amplifier.