Safety device for a conducting path in a load device

US4393432A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Dieter Neuhaus · Pocking, DE
• Gerhard Sohner · Schorndorf, DE
• Walter Ruf · Ditzingen, DE
• Erich Jesse · Erbach, DE
• Helmut Roth · Stuttgart, DE

Key dates

• Filing date: Feb 21, 1980
• Grant date: Jul 12, 1983
• Expiry date: Feb 21, 2000

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05K2203/168
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A safety device is included in a circuit comprising a power source and a user device. The power source has one terminal connected to ground, as does the user device, with the safety device connected in a conducting path leading to the ground in the user device. In the event of an incorrect polarity connection between the power source and user device, a current path through the safety device and to ground is established.