IMPROVED POWER MANAGEMENT CIRCUITRY FOR ENERGY-HARVESTING DEVICES

摘要

Detector circuitry (12) for controlling the operation of a power management module (14) of an energy-harvesting device (10), the detector circuitry comprising: an input (13) for receiving an electrical input representative of a level of harvestable power (Vin); and a trigger coupled to the input and operable to generate an activation signal for switching on the power management module via enabler input (15); wherein the trigger is configured to generate the activation signal upon detecting at least a threshold level of harvestable power, and not to generate the activation signal upon detecting less than the threshold level of harvestable power. Also provided is a method of controlling the operation of a power management module of an energy-harvesting device, the method comprising: receiving an electrical input representative of a level of harvestable power; generating an activation signal for switching on the power management module upon detecting at least a threshold level of harvestable power; and not generating the activation signal upon detecting less than the threshold level of harvestable power.