Safety device for a conducting path in a load device
AssigneeRobert Bosch GmbH
InventorsDieter Neuhaus, Gerhard Sohner, Walter Ruf, Erich Jesse, Helmut Roth
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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.
Claims8
In combination with a user device and a current supply device, each device having at least two terminal connections and a ground connection, one of the terminal connections of the current supply device being connected to its ground connection, one of the terminal connections of the user device being connected to its ground connection, the other terminal connection of the user device being connected to a load element in the user device, a diode means in series with said load element between said other terminal of said user device and said load element;
- said load element also being connected to the ground connected terminal connection, of the user device said two terminal connections of both devices being engageable to produce a current flow, and a safety device within the user device connected between the ground connected terminal connection of the user device and the ground connection of the user device whereby during correct polarization of said user device, no current flows through said safety device, and during incorrect polarization of said user device said safety device operates to isolate said user device ground connection from said ground connected terminal connection.
Dependencies are inferred from the claim text.