Vorrichtung und Verfahren zur Beschleunigung eines Kaltstarts einer Schaltung zur Verwaltung der Eingangsleistung einer Energieerntemaschine

Details

Veröffentlichungs-Nr.

EP4773489

Anmeldetag

7. Januar 2025

Veröffentlichung

8. Juli 2026

Rechtsraum

EP

Abstract

The present invention relates to a method and apparatus for accelerating a cold-start of a power management circuit (PMC) (1) for managing an input power from an energy harvester (2). The PMC (1) comprises: a main voltage converter (6) for converting input power from the energy harvester (2) into a load output power, a controller (7) for controlling the main voltage converter (6) and operable if supplied by a supply voltage Vint of at least Vint_min (Vint ≥ Vint_min), a biasing circuit for converting part of the input power from the energy harvester (2) and supplying power to the controller (7) at least when Vint = Vint_min, a step-down voltage converter (10) configured for converting energy supplied by the energy harvester at a voltage Vin and for supplying power to the controller (7) if and only if Vin ≥ Vint and Vint ≤ Vint_min. Upon starting to receive energy from the energy harvester (2), the PMC (1) is configured such that: i) while Vint ≤ Vint_min, the step-down voltage converter (10) supplies power to the controller (7) such that Vint increases up to Vint_min; and ii) upon Vint reaches Vint_min, the step-down voltage converter (10) interrupts the supply of power to the controller (7), and the biasing circuit supplies power to the controller (7).

Anmelder

Firma

E-peas

Land

🇧🇪 Belgien