Circuit for temperature-dependent regulation of the heating current of seat heaters

US5981918A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Rainer Topp · Reutlingen, DE
• Gerald Materna · Balingen, DE

Key dates

• Filing date: Mar 5, 1998
• Grant date: Nov 9, 1999
• Expiry date: Mar 5, 2018

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B9/02
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A circuit is provided for temperature-dependent control of the heating current of seat heaters to detect with a high functional reliability an interruption in the lead wire to a temperature element and to shut down the heating current in the event that an interrupt is found.