Integrated overload protective device

US5969927A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Guenter Schirmer · Bietigheim-Bissingen, DE
• Frank Werner · Jackson, US
• Hans Raub · Portree, GB

Key dates

• Filing date: Oct 23, 1997
• Grant date: Oct 19, 1999
• Expiry date: Oct 23, 2017

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2924/0002

Abstract

An overload protective device for integrated components that responds rapidly to transient local temperature increases to protect the respective component from overload or overheating. The protective device includes an ohmic measuring resistor made of metal, aluminum in particular, that is integrated into the component. Temperature increases and power loss in individual transistor cells can thus be detected reliably.