Patent ID: 11936229
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 19:
20. The device of claim 19, wherein:
the first circuit includes a first voltage comparator having a first voltage comparator output and first and second voltage comparator inputs, wherein the first voltage comparator input is coupled to the D+ data pin, the second voltage comparator input is coupled to a voltage source of 0.25-0.4V, and the first voltage comparator output is coupled to the first control circuit input;
the second circuit includes a second voltage comparator having a second voltage comparator output and third and fourth voltage comparator inputs, wherein the third voltage comparator input is coupled to the D+ data pin, the fourth voltage comparator input is coupled to a voltage source of 0.8-2.0V, and the second voltage comparator output is coupled to the second control circuit input; and
the third circuit includes a third voltage comparator having a third voltage comparator output and fifth and sixth voltage comparator inputs, wherein the fifth voltage comparator input is coupled to the D+ data pin, the sixth voltage comparator input is coupled to a voltage source of 2.32V, and the third voltage comparator output is coupled to the control circuit third input.