Low-power mode for a USB type-C power delivery controller

In one embodiment, a system includes a power delivery ("PD") controller in a USB Type-C system that includes a configuration channel ("CC"), PD preamble detector, and a power-usage circuit. The PD controller includes a CC input that receives a PD message. The PD preamble detector...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Waters, Deric Wayne, Hastings, Roy Alan
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CALCULATING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER COMPUTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COUNTING ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY GENERATION IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS PHYSICS PULSE TECHNIQUE RESONATORS SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	In one embodiment, a system includes a power delivery ("PD") controller in a USB Type-C system that includes a configuration channel ("CC"), PD preamble detector, and a power-usage circuit. The PD controller includes a CC input that receives a PD message. The PD preamble detector is configured to detect a PD message preamble based in part upon a power of a filtered PD message and communicates a wake-up signal to the power-usage circuit in response to detecting a PD message preamble. The power-usage circuit is configured to exit a low-power mode in response to receiving the wake-up signal.