Topology detection

摘要

Driver circuits comprise power converters detecting automatically a topology used by the driver circuits. A controller controls a plurality of different types of power converters in accordance to a corresponding plurality of different operation modes. The controller comprises a measurement pin coupled to a first topology resistor of a first power converter of a type from the plurality of different types. The different types of power converters comprise topology resistors of corresponding different resistor values. The controller senses a voltage at the measurement pin wherein the voltage at the measurement pin is indicative of a voltage drop at the first topology resistor. Furthermore, the controller determines a type of the first power converter based on the sensed voltage, and selects an operation mode for controlling the first power converter.

主权项

1. A controller configured to control a plurality of different types of power converters in accordance to a corresponding plurality of different operation modes; wherein
the controller comprises a measurement pin configured to be coupled to a first topology resistor of a first power converter of a type from the plurality of different types of power converters; wherein the plurality of different types of power converters comprise topology resistors at a corresponding plurality of different resistor values; the controller comprises a memory unit configured to store a plurality of different pre-determined voltage values; the plurality of different pre-determined voltage values correspond to the plurality of different types of power converters; the controller is configured to sense a voltage at the measurement pin; wherein the voltage at the measurement pin is indicative of a voltage drop at the first topology resistor; the controller is configured to compare the sensed voltage with the plurality of different pre-determined voltage values to determine the type of the first power converter; and the controller is configured to select an operation mode for controlling the first power converter, based on the determined type of the first power converter.