Patent ID: 11955816
Assignee: GREEN SOLUTION TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 4:
5. The metal object detecting device according to claim 2, further comprising:
a display controller unit including a voltage follower, a comparator and a light-emitting component, wherein a first input terminal of the voltage follower is connected to an output terminal of the voltage follower, a second input terminal of the voltage follower is connected to a node of the oscillation detector circuit, and an output terminal of the voltage follower is connected to an input terminal of the first digital signal processor;
wherein a first input terminal of the comparator is connected to the node, a first terminal of a fourth capacitor is connected to the common voltage source and a second input terminal of the comparator, and the comparator is configured to compare the voltage of the node with a voltage of the fourth capacitor to output a comparison signal;
wherein the light-emitting component is connected to an output terminal of the comparator, and configured to emit light when the metal object is close to the wireless charging device according to the comparison signal.