FIG. 11 illustrates a variation of FIGS. 9 and 10 where the control circuit 1110 is coupled to or includes an energy storage device. In this embodiment, the control circuit 1110 may include regulating circuitry to control charging and health monitoring of the energy storage device. The control circuit 1110 may also include regulating circuitry to regulate voltage or current provided to the voltage regulator circuit 1107. The control circuit 1110 can include data/control as well as power transfer lines between it and the voltage regulator circuit 1107. While only a single data/control channel and a single power transfer line are shown, those of skill in the art will recognize that each of these can represent one or more channels or one or more physical lines. For instance, the power transfer line may be embodied by a low voltage (e.g., 5V) line and a high voltage (e.g., 5-50V) line.
