Multi-phase DC-to-AC and DC-to-DC boost converter
First Claim
1. A multi-phase voltage boost converter comprising:
- (a) a plurality of transformer primary windings electrically interconnected in a single loop mesh configuration;
(b) a plurality of voltage boosting phase-channels electrically connected with said primary windings and commonly connected to a low voltage power source; and
(c) means for controlling said phase-channels such that each said phase-channel periodically provides a boosted voltage potential to said primary windings, the periodic boosted voltage potential being provided in a continuously cycling, multi-phase synchronous relationship to one another so that a corresponding multi-phase, high-voltage AC potential appears across each of said primary windings.
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Accused Products
Abstract
A multi-phase DC-to-AC voltage boosting converter suitable for use as the primary stage of power isolated, high output voltage DC-to-DC voltage converters. The converter is comprised of a plurality of transformer primary windings electrically interconnected in a single loop mesh configuration and a plurality of voltage boosting channels operatively associated with the respective primary windings and commonly connected to a low voltage power source. The phase channels are operated so as to periodically provide a boosted voltage potential to the primary windings in a continuously cycling, multi-phase synchronous relation to one another so that a corresponding multi-phase, high-voltage AC potential is provided across each of said primary windings. Various conventional AC-to-DC converters and voltage multiplier circuits may be inductively coupled to the transformer primary windings to provide a wide variety of highly efficient low-to-high voltage DC-to-DC boost converters.
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Citations
12 Claims
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1. A multi-phase voltage boost converter comprising:
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(a) a plurality of transformer primary windings electrically interconnected in a single loop mesh configuration; (b) a plurality of voltage boosting phase-channels electrically connected with said primary windings and commonly connected to a low voltage power source; and (c) means for controlling said phase-channels such that each said phase-channel periodically provides a boosted voltage potential to said primary windings, the periodic boosted voltage potential being provided in a continuously cycling, multi-phase synchronous relationship to one another so that a corresponding multi-phase, high-voltage AC potential appears across each of said primary windings. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An N-phase low-to-high voltage DC-to-DC converter comprising:
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(a) a primary N-phase DC to AC boost converter stage including; (1) means for generating a low-voltage DC voltage potential difference between a first and a second input terminal; (2) N primary transformer windings electrically connected at N winding nodes in a single loop mesh configuration; (3) N identical phase-channels, each said phase channel including an inductor electrically connected between said first input terminal and a separate one of said winding nodes and a switch electrically connected between said winding node and said second input terminal for selectively shorting said winding node to said second input terminal; and (b) a secondary AC-to-DC converter stage including; (1) at least one secondary transformer winding inductively coupled to each said primary transformer winding; and (2) means for converting a high AC voltage potential induced in each of said secondary windings to a corresponding DC voltage potential, said means including conventional AC-to-DC converter and voltage multiplier circuits, so that at least one high-voltage, isolated DC power output is provided. - View Dependent Claims (9, 10)
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11. A 3-phase DC-to-AC boost converter comprising:
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(a) means for generating an input DC voltage potential difference between a power input node and a ground reference node; (b) three transformer primary windings electrically connected at winding nodes to form a delta connected network; (c) three inductors each being electrically connected between said power input node and a separate one of said winding nodes so as to form a wye configuration within said delta configured network of primary windings; and (d) three switches, each being electrically connected between a separate one of said winding nodes and said ground reference node. - View Dependent Claims (12)
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Specification