Method and apparatus for reducing switching losses in a switching circuit
First Claim
1. A method of reducing switching losses in a leg of a switching circuit during commutation of current between first and second complementary switching elements of the switching circuit, the method comprising:
- impeding changes in current flow between a load current node and a first supply conductor through a first path comprised of a first saturable inductor and the first switching element, while impeding changes in current flow between said load current node and a second supply conductor through a second path comprised of a second saturable inductor and the second switching element.
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Abstract
A method and apparatus for reducing switching losses in a leg of a switching circuit during commutation of current between first and second complementary switching elements thereof is disclosed. The method involves impeding changes in current flow between a load current node and a first supply conductor through a first path comprised of a first saturable inductor and the first switching element, while impeding changes in current flow between the load current node and a second supply conductor through a second path comprised of a second saturable inductor and the second switching element.
46 Citations
17 Claims
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1. A method of reducing switching losses in a leg of a switching circuit during commutation of current between first and second complementary switching elements of the switching circuit, the method comprising:
impeding changes in current flow between a load current node and a first supply conductor through a first path comprised of a first saturable inductor and the first switching element, while impeding changes in current flow between said load current node and a second supply conductor through a second path comprised of a second saturable inductor and the second switching element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A switching circuit apparatus comprising:
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a load current node operable to receive load current;
a first current path comprised of a first saturable inductor connected to said load current node and a first switching element connected to said first saturable inductor and a first supply conductor, a second current path comprised of a second saturable inductor connected to said load current node and a second switching element connected to said second saturable inductor and a second supply conductor;
said first saturable inductor being operable to impede changes in current flow between said load current node and said first supply conductor while said second saturable inductor is operable to impede changes in current flow between said load current node and said second supply conductor. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification