Programming controller parameters through external terminals of a power converter

#1. Field

#The present disclosure relates generally to power converters and, more specifically, to programming controllers for switched-mode power converters.

#2. Related Art

#Non-limiting and non-exhaustive embodiments are described with reference to the following figures, wherein like reference numerals refer to like parts throughout the various views unless otherwise specified.

#FIG. 1 illustrates a simplified block diagram of an example power converter having a controller that is configured to be programmed through input or output terminals of the power converter according to various examples.

#FIGS. 2A-F illustrate example signals that can be applied to the input or output terminals of a power converter to program parameters of a controller according to various examples.

#In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present technology. It will be apparent, however, to one having ordinary skill in the art that the specific detail need not be employed to practice the present technology. In other instances, well-known materials or methods have not been described in detail in order to avoid obscuring the present technology.

#Reference throughout this specification to “one embodiment”, “an embodiment”, “one example”, or “an example” means that a particular feature, structure or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present disclosure. Thus, appearances of the phrases “in one embodiment”, “in an embodiment”, “one example”, or “an example” in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures or characteristics may be combined in any suitable combinations and/or subcombinations in one or more embodiments or examples. Particular features, structures or characteristics may be included in an integrated circuit, an electronic circuit, a combinational logic circuit, or other suitable components that provide the described functionality. In addition, it is appreciated that the figures provided herewith are for explanation purposes to persons ordinarily skilled in the art and that the drawings are not necessarily drawn to scale.

#To provide a thorough understanding of the present technology, numerous details have been set forth and, in some cases, simplified equivalent implementation circuits have been described. However, it will be apparent to one having ordinary skill in the art that the equivalent simplified circuits may differ from the actual implementations and that all specific details need not be employed to practice the various examples. Additionally, it should be appreciated that in the description below and in all described examples, a switched-mode power supply may include a controller incorporated into an IC having some or none of the switching and power components in a monolithic or hybrid structure.