Abstract: A driver can be configured to provide sensed phase currents as feedback to a controller to indicate the output currents from each phase of a switch mode power supply (SMPS). The driver can be configured to temperature compensate the sensed currents in one of two ways. If a temperature sensor is directly coupled to the driver, then the driver may be configured to temperature compensate the sensed currents from each phase based on a temperature measurement made by the temperature sensor. If a temperature sensor is not directly coupled to the driver, then the driver may be configured to temperature compensate the sensed current from each phase based on a temperature signal received from a bus coupled to the driver. The bus can communicate the temperature signal so that multiple drivers can utilize one temperature sensor.

Abstract: A musical teaching system including a plurality of blocks adjacent one another. Each block includes a graphical representation of upbeat and downbeat, and also includes a graphical representation of a musical beat and a musical note or rest. In one embodiment the blocks are mounted on a shaft and are urged into frictional engagement by shaft mounted springs.