Smart electronic switch

US11955957B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Christian Djelassi-Tscheck · Villach, AT
• Michael Asam · Aichach, DE
• Mirko Bernardoni · Villach, AT
• David Jacquinod · La Fare-les-Oliviers, FR
• Andre Mourrier · Manosque, FR
• Mario Tripolt · Ferndorf, AT

Key dates

• Filing date: Nov 16, 2021
• Grant date: Apr 9, 2024
• Expiry date: Dec 23, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03K17/08142
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

In accordance with an embodiment, a circuit for driving an electronic switch includes a control circuit configured to trigger a switch-on and a switch-off of the electronic switch in accordance with an input signal, wherein the control circuit is further configured to trigger the switch-off of the electronic switch in response to an under-voltage signal signaling an under-voltage state; and an under-voltage detection circuit configured to signal the under-voltage state when a supply voltage received at a supply node is below an under-voltage threshold value, wherein the under-voltage threshold value depends on a load current passing through the electronic switch.