CIRCUIT ARRANGEMENT WITH A POWER INPUT AND AN OPERATING METHOD FOR CONTROLLING A POWER INPUT CIRCUIT
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Accused Products
Abstract
A circuit arrangement with a power input and at least one power supply unit that generates a DC voltage for operating an electronic device including a power input circuit inserted between the power input and the at least one power supply unit that selectively disconnects or rectifies an AC voltage provided via the power input for the at least one power supply unit, wherein the power input circuit has at least one first semiconductor switching element that switches a first electrical load path with a current limiting element from the power input to the at least one power supply unit, and at least one second semiconductor switching element that switches a second electrical load path from the power input to the at least one power supply unit, and a power input filter, wherein the power input filter includes a first filter circuit arranged between the power input and the power input circuit and a second filter circuit arranged between the power input circuit and the at least one power supply unit.
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Citations
35 Claims
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1-15. -15. (canceled)
- 16. A circuit arrangement with a power input and at least one power supply unit that generates a DC voltage for operating an electronic device comprising a power input circuit inserted between the power input and the at least one power supply unit that selectively disconnects or rectifies an AC voltage provided via the power input for the at least one power supply unit, wherein the power input circuit has at least one first semiconductor switching element that switches a first electrical load path with a current limiting element from the power input to the at least one power supply unit, and at least one second semiconductor switching element that switches a second electrical load path from the power input to the at least one power supply unit, and a power input filter, wherein the power input filter comprises a first filter circuit arranged between the power input and the power input circuit and a second filter circuit arranged between the power input circuit and the at least one power supply unit.
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29. A circuit arrangement with a power input and at least one power supply unit that generates a DC voltage for operating an electronic device, comprising:
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a power input circuit inserted between the power input and the at least one power supply unit that selectively disconnects or rectifies an AC voltage provided via the power input for the at least one power supply unit, wherein the power input circuit has at least one first semiconductor switching element that switches a first electrical load path with a current limiting element from the power input to the at least one power supply unit, and at least one second semiconductor switching element that switches a second elegrical load path from the power input to the at least one power supply unit; and a drive circuit that drives the at least one first semiconductor switching element and the at least one second semiconductor switching element, wherein the drive circuit opens the first semiconductor switching element and the second semiconductor switching element in an energy-saving state, closes at least the second semiconductor switching element at least temporarily in an operating state, and closes only the first semiconductor switching element in a transitional phase from the energy-saving state to the operating state, the second semiconductor switching element remaining open. - View Dependent Claims (30, 31, 32)
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33. An operating method for driving a power input circuit with at least one first semiconductor switching element for switching a first electrical load path with a current-limiting element from a power input to at least one power supply unit and at least one second semiconductor switching element for switching a second electrical load path from the power input and to the power supply unit, comprising:
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opening the first and the second semiconductor switching element in an energy-saving state; at least temporarily closing the first semiconductor switching element and leaving the at least one second semiconductor switching element open in a transition phase from the energy-saving state to an operating state; and at least temporarily closing the at least one second semiconductor switching element in the operating state. - View Dependent Claims (34, 35)
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Specification