Summing comparator for higher order class D amplifiers
The summing comparator includes: a first integrator; a second integrator for receiving an output of the first integrator; and a comparator for switching when the output of the first integrator is greater than the output of the second integrator. The outputs of the first and second integrators are directly compared by the comparator without the necessity of a summing amplifier.
Texas Instruments Incorporated
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Srinath M. Jagadeesh Gangadhar
Ramaswamy Krishnan Burra