Patent ID: 11888447
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A circuit, comprising:
an operational amplifier having:
a positive input;
a negative input;
an operational amplifier output;
a differential front end with differential inputs and differential outputs, the differential inputs coupled to the positive and negative inputs;
a positive channel (PCH) input stage with PCH inputs and an PCH output, the PCH inputs coupled to the differential outputs;
a negative channel (NCH) input stage with NCH inputs and an NCH output, the NCH inputs coupled to the differential outputs; and
an output stage with output stage inputs and an output stage output, the output stage inputs coupled to the PCH and NCH outputs; and

a current limit circuit coupled to the output stage output, the current limit circuit having:
an output current sense voltage circuit having an output;
an indirect current feedback circuit coupled to the output of the output current sense voltage circuit, the indirect current feedback circuit having an output; and
control circuitry coupled to the indirect current feedback circuit.