Patent ID: 8729879

Claim:
A device of inductance detection, coupled to an object to be detected and a switching regulator, the device comprising: a current pulse generator, generating a current pulse signal to the object according to a control signal; a detector, coupled to the object and the current pulse generator, for detecting a reflective signal responded by the object after receiving the current pulse signal, determining whether the reflective signal meets at least one inductor requirement, and when the reflective signal meets the at least one inductor requirement, generating a judge signal according to the reflective signal, wherein the at least one inductor requirement comprises determining whether an inductance impedance is between a range defined by a preset inductor impedance range of an outside inductor of the switching regulator or not, and if the inductance impedance is not between the defined range, the at least one inductor requirement is not met; and a controller, coupled to the detector and the current pulse generator, for generating the control signal, and generating an enable signal used for enabling the switching regulator to generate an output voltage based on the judge signal.