Mechanical relay and solid-state relay for controlling heating elements

US10119727B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Alfons Graf · Kaufering, DE
• Thomas Klug · Augsburg, DE

Key dates

• Filing date: May 6, 2015
• Grant date: Nov 6, 2018
• Expiry date: Apr 23, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02H7/222
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A circuit comprises a mechanical relay and a solid-state relay. The mechanical relay is configured to switch a first supply current of the first heating element on a first supply line. The solid-state relay is configured to switch a second supply current of a second heating element on a second supply line.