Power management system and method of use thereof

摘要

One embodiment of a power management system includes a reservoir configured to collect energy. The system also includes a voltage regulator coupled to the reservoir via an input terminal and configured to convert the energy to an output voltage via an output terminal when enabled. A threshold detector is coupled to the reservoir and is configured to sense the energy and enable the voltage regulator when the energy exceeds a threshold. The system further includes a feedback circuit coupled between the output terminal and the threshold detector, and configured to feedback the output voltage to the threshold detector to compensate for a voltage drop across the threshold detector due to an output current drawn by the load.

主权项

1. A power management system, comprising:
a reservoir configured to collect energy; a voltage regulator coupled to the reservoir and configured to convert the energy to an output voltage, the voltage regulator including an enable input; a threshold detector coupled to the reservoir and the enable input of the voltage regulator, the threshold detector configured to sense the energy and enable the voltage regulator when the energy exceeds a threshold; and a feedback circuit comprising a diode and coupled between an output of the voltage regulator and the enable input of the voltage regulator, the feedback circuit configured to feed back the output voltage to override threshold detector when the voltage regulator is operating.