| US 7,606,053 B2 | ||
| DC-to-DC converter and electric motor drive system using the same | ||
| Chingchi Chen, Ann Arbor, Mich. (US); Michael Degner, Novi, Mich. (US); and Venkateswa Sankaran, Farmington Hills, Mich. (US) | ||
| Assigned to Ford Global Technologies, LLC, Dearborn, Mich. (US) | ||
| Filed on Apr. 06, 2006, as Appl. No. 11/278,867. | ||
| Prior Publication US 2007/0236965 A1, Oct. 11, 2007 | ||
| Int. Cl. H02M 7/5378 (2006.01); G05F 1/00 (2006.01) | ||
| U.S. Cl. 363—132 [363/17; 323/282; 323/352] | 21 Claims |
| 1. A DC-to-DC converter comprising:
a first capacitor having a first and second terminal and being rated to a first voltage rating;
a second capacitor having a first and second terminal;
an inductor having a first and second terminal, wherein the first terminal of the inductor is coupled to both the first terminal
of the second capacitor and the second terminal of the first capacitor to form a first node;
a first switching device having a first and second terminal and configured to electrically couple the first and second terminals
of the first switching device in response to a first control signal, wherein the first terminal of the first switching device
is coupled to the first terminal of the first capacitor to form a second node; and
a second switching device having a first and second terminal and configured to electrically couple the first and second terminals
of the second switching device in response to a second control signal, wherein:
the first terminal of the second switching device is coupled to the second terminal of the first switching device and the
second terminal of the inductor to form a third node,
the second terminal of the second switching device is coupled to the second terminal of the second capacitor to form a fourth
node,
the DC-to-DC converter is configured to facilitate bi-directional voltage transfer therethrough, and
the first voltage rating of the first capacitor is substantially similar to a voltage between the first and second nodes.
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