Patent ID: 11923813
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A pulse width modulated (PWM) amplifier, comprising:
a digital-to-analog converter (DAC) having an input and first and second outputs;
a synchronization logic circuit having a first input, having a second input and first and second outputs;
a ramp generator having a first input a second input, third input, coupled to the first output of the synchronization logic circuit, a fourth input coupled to the second output of the synchronization logic circuit and an output;
a loop filter having first and second inputs coupled to the first and second outputs of the DAC respectively, having a third input coupled to a first differential output voltage and having a fourth input coupled to a second differential output voltage and first and second outputs; and
a comparator having a first input coupled to the output of the ramp generator, and having second and third inputs coupled to the first and second outputs of the loop filter, and the comparator having first and second outputs.