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AssigneeSiemens Aktiengesellschaft
InventorsMarkus Amtmann, Stephan Bolz, Jurgen Rossler
Estimating the term…
A circuit configuration for generating a virtual ground includes a micro-controller, an analog circuit and a read-only memory. A pulse-width modulated signal, which is output by the micro-controller, is converted, by using the analog circuit, into the virtual ground as a common reference potential of an exhaust probe which operates according to the principle of the galvanic oxygen concentration cell with a solid electrolyte. The actual value of the virtual ground is read into the micro-controller through the use of an A/D converter and is compared with a predefined setpoint value. The potential value of the virtual ground is then controlled on the basis of the difference value. An exhaust probe configuration is also provided.
A circuit configuration for generating a virtual ground for an exhaust probe operating according to a principle of a galvanic oxygen concentration cell with a solid electrolyte, comprising:
In combination with an exhaust probe operating according to a principle of a galvanic oxygen concentration cell having a solid electrolyte, a circuit configuration for generating a virtual ground, comprising:
An exhaust probe configuration, comprising:
Dependencies are inferred from the claim text.