Patent ID: 11897762
Assignee: KNOWLES ELECTRONICS, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 11:
12. An integrated circuit for interfacing with a transducer of a digital sensor assembly, the integrated circuit comprising:
a signal processing circuit connectable to a transducer of the digital sensor assembly;
an output driver circuit coupled to the signal processing circuit;
a low drop out (LDO) regulator circuit coupled to the output driver circuit; and
an over-voltage protection circuit comprising:
a current-sink circuit coupled to the output driver circuit and configured to sink current associated with reflected energy received by the output driver circuit;
a current comparator circuit coupled to the current-sink circuit; and
a control circuit coupled to the current comparator and configured to change a state of the current comparator when a voltage of the reflected energy exceeds a threshold,
wherein the current comparator enables the current-sink circuit to sink current associated with the reflected energy upon changing state.