Dynamic switching frequency control for a digital switching...

Details Dynamic switching frequency control for a digital switching... Dynamic switching frequency control for a digital switching...

H - Electricity

03

F

H03F 3/217 (2006.01)

Patent

CA 2380273

A switching amplifier (500) is described which includes an input stage having 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 to the reference loop delay.

L'invention concerne un amplificateur à découpage (500) comprenant un étage d'entrée ayant un premier noeud associé à celui-ci et un étage d'alimentation ayant un second noeud associé à celui-ci. Un temps de propagation en boucle réel est défini par référence aux premier et second noeuds. Un circuit (504) de détection de temps de propagation compare le temps de propagation en boucle réel à un temps de propagation en boucle de référence. Une ligne (502) à temps de propagation dynamique commandée par le circuit de détection de temps de propagation commande le temps de propagation en boucle réel afin qu'il corresponde au temps de propagation en boucle de référence.

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