Siemens Building Technologies Ag

Electrowatt Technology Innovation Ag

Alexander Meier

Josef Lelle

Hans-Peter Bauer

Method for controlling or regulating a burner () to which a defined air quantity () and fuel quantity () are fed, the exhaust gas () formed during the combustion being fed to a sensor (), and the actual value () detected by the sensor being compared with a desired value (), and a control deviation being obtained from the difference between desired value and actual value, which control deviation is converted into a control variable () which is independent of the burner power, characterized in that a power-dependent control variable () is generated from the power-independent control variable () and from burner-specific parameters () which are determined during setting of the burner for the respective power points of the burner, and in that the power-dependent control variable () is converted into a control signal () in order to influence the ratio of the air quantity () to the fuel quantity ().

Method for controlling or regulating a burner

There is proposed a circuit for operation of at least one relay having an OFF-position and an ON-position, wherein the relay assumes the OFF-position in the event of a component failure of any element of the circuit. In the ON-position of the relay a capacitor, the relay and a voltage source are switched in a predetermined cycle in such a way that in a first time interval of the cycle the voltage source delivers a current which flows through the relay and partially charges up the capacitor and that in a second time interval of the cycle the capacitor delivers the current which flows through the relay, with the capacitor being partially discharged again.

Growing community of inventors

Bühlertal, Germany

Alexander Meier