Electric circuit
First Claim
1. An electric circuit for an electrical system in a motor vehicle, the electrical system being powered by a voltage supply and having two functional states, the electric circuit comprising:
- at least one control stage including a switching device, an electronic switching module, a single signal output, and a single connecting line connecting the signal output to the electrical system;
the switching device including at least one manually operated push-button switching element switchable between two switching states for generating respective switching state output signals at the signal output in order to switch the electrical system between the two functional states;
the electronic switching module including a non-volatile flip-flop formed by EEPROM cells which are operable for storing the switching state of the switching element, wherein the electronic switching module maintains the switching state output signal corresponding to the stored switching state at the signal output to maintain the functional state of the electrical system until the switching element is switched to the other switching state, and maintains the switching state output signal corresponding to the stored switching state at the signal output to maintain the functional state of the electrical system during an interruption of power from the voltage supply to the electrical system.
1 Assignment
0 Petitions
Accused Products
Abstract
An electric circuit for a vehicle electrical system powered by a voltage supply. The circuit includes a control stage having a switching device, a switching module, a signal output, and a connecting line connecting the signal output to the electrical system. The switching device includes a switching element switchable between two switching states for generating respective switching state output signals at the signal output to switch the electrical system between functional states. The switching module includes a non-volatile flip-flop formed by EEPROM cells which are operable for storing the switching state. The switching module maintains the switching state output signal to maintain the functional state of the electrical system until the switching element is switched to a different switching state, and maintains the switching state output signal to maintain the functional state of the electrical system during a voltage supply interruption.
-
Citations
20 Claims
-
1. An electric circuit for an electrical system in a motor vehicle, the electrical system being powered by a voltage supply and having two functional states, the electric circuit comprising:
-
at least one control stage including a switching device, an electronic switching module, a single signal output, and a single connecting line connecting the signal output to the electrical system;
the switching device including at least one manually operated push-button switching element switchable between two switching states for generating respective switching state output signals at the signal output in order to switch the electrical system between the two functional states;
the electronic switching module including a non-volatile flip-flop formed by EEPROM cells which are operable for storing the switching state of the switching element, wherein the electronic switching module maintains the switching state output signal corresponding to the stored switching state at the signal output to maintain the functional state of the electrical system until the switching element is switched to the other switching state, and maintains the switching state output signal corresponding to the stored switching state at the signal output to maintain the functional state of the electrical system during an interruption of power from the voltage supply to the electrical system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16, 17, 18, 19, 20)
-
-
14. An electric circuit for an electrical system in a motor vehicle, the electrical system being powered by a voltage supply and having two functional states, the electric circuit comprising:
-
at least one control stage including a switching device, an electronic switching module, a single signal output, and a single connecting line connecting the signal output to the electrical system;
the switching device including two manually operated push-button switching elements switchable between two switching states for generating respective switching state output signals at the signal output in order to switch the electrical system between the two functional states;
the electronic switching module including a non-volatile flip-flop formed by EEPROM cells which are operable for storing the switching state of the switching element, wherein the electronic switching module maintains the switching state output signal corresponding to the stored switching state at the signal output to maintain the functional state of the electrical system until the switching elements are switched to the other switching state, and maintains the switching state output signal corresponding to the stored switching state at the signal output to maintain the functional state of the electrical system during an interruption of power from the voltage supply to the electrical system.
-
-
15. An electric circuit for an electrical system in a motor vehicle and powered by a voltage supply, the electric circuit comprising:
-
at least one control stage including a switching device, an electronic switching module, a single signal output, and a single connecting line connecting the signal output to the electrical system for switching an appertaining part of the electrical system in one of two functional states;
the switching device including at least one manually operated push-button switching element switchable between two switching states for generating respective switching state output signals at the signal output in order to switch the appertaining part of the electrical system between the two functional states;
the electronic switching module including a non-volatile flip-flop formed by EEPROM cells which are operable for storing the switching state of the switching element, wherein the electronic switching module maintains the switching state of the output signal corresponding to the stored switching state at the signal output to maintain the functional state of the appertaining part of the electrical system until the switching element is switched to the other switching state, and maintains the switching state of the output signal corresponding to the stored switching state at the signal output to maintain the functional state of the appertaining part of the electrical system during an interruption of power from the voltage supply to the electrical system.
-
Specification