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US 7,095,234 B2Granted
Device for triggering ignition circuits
AssigneeRobert Bosch GmbH
InventorsMichael Ulmer, Andreas Rupp
Life of this patent
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Abstract
A device for triggering ignition circuits is provided, a coupling being provided between a positive output stage and negative output stage of different pairs. Each positive and each negative output stage is assigned a diagnostic unit and a drive circuit.
Claims4
A device for triggering at least two ignition circuits, comprising:
- a positive output stage assigned to each one of the two ignition circuits;
- a negative output stage assigned to each one of the two ignition circuits;
- a drive circuit assigned to each one of the positive output stages and negative output stages;
- and
- a diagnostic unit assigned to each one of the positive output stages and negative output stages;
- wherein a first pair of positive output stage and a negative output stage is provided on a common substrate, and wherein a second pair of positive output stage and a negative output stage is provided on the common substrate, and wherein, for each ignition circuit, a positive output stage and a negative output stage from different pairs are provided.
3 more elements
Dependencies are inferred from the claim text.