DYNAMIC SWITCHING FREQUENCY CONTROL FOR A DIGITAL SWITCHING AMPLIFIER

摘要

A switching amplifier (500) is described which includes an input stage havin g a first node associated therewith and a power stage having a second node associated therewith. An actual loop delay is defined with reference to the first and second nodes. Delay detection circuitry (504) compares the actual loop delay to a reference loop delay. A dynamic delay line (502) controlled by the delay detection circuitry controls the actual loop delay to correspond t o the reference loop delay.