Switched-Mode Power Supply Unit
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Accused Products
Abstract
A switched-mode power supply unit includes at least two LLC resonant converters connected in parallel and which each include a test circuit that generates a respective test signal that is proportionate to the transmitted current of the associated LLC resonant converter, wherein each respective test signal is supplied to a load controller that modifies at least one switching frequency of an LLC resonant converter such that the test signals converge so as to allow the current or load to be accurately split when a plurality of LLC resonant converters is connected in parallel.
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Citations
34 Claims
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1-15. -15. (canceled)
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16. A switched-mode power supply unit, comprising:
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at least two LLC resonant converters which are corrected in parallel; and a load controller; wherein each LLC resonant convener comprises a measuring circuit, which generates a respective measuring signal which is proportionate to the transmitted current of the associated LLC resonant converter; wherein each measuring signal is supplied to the load controller and at least one switching frequency of an LLC resonant converter of the at least two LLC resonant converters which are connected in parallel is changed via the load controller such that measuring signals converge. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method for controlling a switched-mode power supply unit, the method comprising:
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detecting a measuring signal for each LLC resonant converter of two resonant conveners, each respective measuring signal being proportionate to a transmitted current of a respective LLC resonant converter; forming a control deviation from each respective measuring signal; and specifying a change variable from the formed control deviation for at least one switching frequency of an LLC resonant converter to converge the measuring signals. - View Dependent Claims (33, 34)
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Specification