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US 8,074,631 B2Granted
Circuit configuration for switching current flow through an ignition coil
AssigneeRobert Bosch GmbH
InventorsShike Hu, Rainer Topp, Thomas Jacke, Christian Pluntke
Life of this patent
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Abstract
A circuit configuration for switching current flow through an ignition coil, in which the switching process is able to be executed by at least one first transistor that is controllable by a control signal which is able to be supplied via a control signal input of the circuit configuration, and the control signal input is connected to at least one variable resistor.
Claims10
A circuit configuration for switching a current flow through an ignition coil, comprising:
- at least one first transistor to perform the switching process, and which is controllable by a control signal;
- at least one variable resistance element;
- and
- a measuring resistor connected in series with the at least one variable resistance element and connected in parallel with the ignition coil, the circuit configuration being configured to determine the current flowing through the at least one variable resistance element by measuring a voltage across the measuring resistor,
- wherein the control signal is suppliable via a control signal input of the circuit configuration, and wherein the control signal input is connected to the at least one variable resistance element and the measuring resistor.
2 more elements
A motor vehicle arrangement, comprising:
- a motor vehicle;
- and
- a circuit configuration for switching a current flow through an ignition coil, including:
- at least one first transistor to perform the switching process, and which is controllable by a control signal;
- at least one variable resistance element;
- and
- a measuring resistor connected in series with the at least one variable resistance element and connected in parallel with the ignition coil, the circuit configuration being configured to determine the current flowing through the at least one variable resistance element by measuring a voltage across the measuring resistor,
- wherein the control signal is suppliable via a control signal input of the circuit configuration, and wherein the control signal input is connected to the at least one variable resistance element and the measuring resistor.
5 more elements
Dependencies are inferred from the claim text.