Pwm control for electromagnetic valves
AssigneeBuerkert Werke GmbH
InventorsMarkus Feinauer, Simon Kastner, Dinko Begovic, Sebastian Frank
Life of this patent
Estimating the term…
Loading patent…
AssigneeBuerkert Werke GmbH
InventorsMarkus Feinauer, Simon Kastner, Dinko Begovic, Sebastian Frank
Estimating the term…
A circuit and a method of controlling a circuit is provided for an electronic control of an electromagnetic drive of an electromagnetic valve. The circuit provides a control signal for the electromagnetic drive which has a high level and a low level. The control signal comprises at least a first time interval having a first duty cycle, an optional second time interval having a second duty cycle, and a third time interval having a third duty cycle, the first, second and third duty cycles being less than one. The first duty cycle is greater than the second duty cycle and the second duty cycle is greater than the third duty cycle. The time length of the time intervals and the size of the duty cycles are configured such that the electromagnetic drive changes from a first operating state to a second operating state in the first time interval, optionally remains in the second operating state in the second time interval, and changes from the second operating state to the first operating state in the third time interval.
A circuit for the electronic control of an electromagnetic drive of an electromagnetic valve, the circuit being arranged to provide a control signal for the electromagnetic drive which has a high level and a low level, the control signal comprising at least a first time interval having a first duty cycle, an optional second time interval having a second duty cycle, and a third time interval having a third duty cycle, the first, second and third duty cycles being less than one, and the first duty cycle being greater than the second duty cycle, and the second duty cycle being greater than the third duty cycle, and a time length of the first, second, and third time intervals and the size of the first, second, and third duty cycles being configured such that the electromagnetic drive changes from a first operating state to a second operating state in the first time interval, optionally remains in the second operating state in the second time interval, and changes from the second operating state to the first operating state in the third time interval.
A method of controlling an electromagnetic drive for an electromagnetic valve comprising:
Dependencies are inferred from the claim text.