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US 4,406,991 AGranted
High power resonance filters
AssigneeWestinghouse Electric Corp.
InventorsEugene C. Strycula, Derek A. Paice, Laszlo Gyugyi
Life of this patent
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Abstract
There is provided by this invention a novel high power resonance filter utilizing a resistive element between two resonant branches disposed to dampen resonant harmonic currents or voltages while maintaining minimal losses at the fundamental frequency.
Claims4
A high power resonance filter, comprising:
- (a) a first resonant branch having a first series connected capacitive element and inductive element;
- (b) a second resonant branch having a second series connected capacitive element and inductive element;
- (c) a resistive branch connected at a junction of the first series connected capacitive element and inductive element and a junction of the second series connected capacitive element and inductive element between the first and second resonant branches;
- (d) the first resonant branches and second resonant branches having two common nodes to form a resonant filter network;
- and
- (e) the first resonant branches and second resonant branches having a common junction to an a.c. power network.
3 more elements
A high power resonance filter, comprising:
- (a) a first resonant branch having a series connected capacitive element and two inductive elements;
- (b) a second resonant branch having a series connected capacitive element and inductive element;
- (c) a resistive branch connected at a junction of the first two series connected inductive elements and a junction of the second series connected capacitive element and inductive element between the first and second resonant branches;
- (d) the first and second resonant branches having two common nodes to form a resonant filter network;
- and
- (e) the first and second resonant branches having a common junction to an a.c. power system.
3 more elements
A high power resonance filter, comprising:
- (a) a first resonant branch having a series connected inductive element and two capacitive elements;
- (b) a second resonant branch having a series connected inductive element and capacitive element;
- (c) a resistive branch connected at a junction of the first two series connected capacitive elements and a junction of the second series connected inductive element and capacitive element between the first and second resonant branches;
- (d) the first and second resonant branches having two common nodes to form a resonant filter network;
- and
- (e) the first and second resonant branches having a common junction to an a.c. power system.
3 more elements
Dependencies are inferred from the claim text.