High resolution control for a multimode SMPS converter and high resolution slope generator

摘要

In various embodiments a controller for controlling the operation of a switched mode power supply is provided, the controller comprising: a first signal source configured to provide a first set of signals including a set signal and a clear signal, wherein the first set of signals may correspond to a first mode of operation of the switched mode power supply; a second signal source configured to provide a second set of signals including a set signal and a clear signal, wherein the second set of signals may correspond to a second mode of operation of the switched mode power supply; a selecting circuit coupled to the first signal source and to the second signal source, the selecting circuit being configured to select either the first set of signals or the second set of signals; a switching signal generating circuit coupled to the selecting circuit and configured to provide a switching signal to the switched mode power supply based on the set of signals received from the selecting circuit.

主权项

1. A controller for controlling the operation of a switched mode power supply, the controller comprising:
a first signal source configured to provide a first set of signals comprising a set signal and a clear signal, wherein the first set of signals corresponds to a first mode of operation of the switched mode power supply; a second signal source configured to provide a second set of signals comprising a set signal and a clear signal, wherein the second set of signals corresponds to a second mode of operation of the switched mode power supply; a selecting circuit coupled to the first signal source and to the second signal source, the selecting circuit being configured to select a set of signals from either the first set of signals or the second set of signals; a switching signal generating circuit coupled to the selecting circuit and configured to provide a switching signal to the switched mode power supply based on the set of signals selected by the selecting circuit; and a high resolution signal forwarding circuit, wherein the selecting circuit is coupled to the switching signal generating circuit via the high resolution signal forwarding circuit; wherein the high resolution signal forwarding circuit is configured to generate a high resolution set signal and a high resolution clear signal on the basis of a selected set signal and a selected clear signal of the set of signals selected by the selectin circuit.