Smart electronic switch

US11431162B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Christian Djelassi-Tscheck · Villach, AT
• Bernhard Auer · Millstatt, AT
• Thomas Blasius · Haar, DE
• Robert Illing · Finkenstein, AT
• David Jacquinod · La Fare-les-Oliviers, FR
• Michael Luschin · Krumpendorf, AT
• Andre Mourrier · Manosque, FR
• Mario Tripolt · Ferndorf, AT

Key dates

• Filing date: Aug 12, 2020
• Grant date: Aug 30, 2022
• Expiry date: Aug 12, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02H3/085
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An integrated circuit that may be employed as a smart switch is described herein. In accordance with one embodiment the integrated circuit includes a power transistor coupled between a supply pin and an output pin and further includes a control circuit configured to trigger a switch-on and a switch-off of the power transistor in accordance with an input signal. The control circuit is configured to trigger a switch-off of the power transistor when a load current passing through the power transistor is at or above a predetermined current and a supply voltage received at the supply pin is at or below a predetermined threshold voltage.