DC-TO-DC CONVERTER AND ELECTRIC MOTOR DRIVE SYSTEM USING THE SAME
First Claim
Patent Images
1. A DC-to-DC converter comprising:
- a first capacitor having a first and second terminal;
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, and the second terminal of the second switching device is coupled to the second terminal of the second capacitor to form a fourth node.
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Abstract
A DC-to-DC converter and to an electric motor drive system using the same. The DC-to-DC converter includes first and second capacitors, an inductor, and first and second switching devices.
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Citations
20 Claims
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1. A DC-to-DC converter comprising:
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a first capacitor having a first and second terminal;
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, and the second terminal of the second switching device is coupled to the second terminal of the second capacitor to form a fourth node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electric motor drive system comprising:
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an energy storage device having a positive and a negative terminal;
a drive unit having a first and second terminal;
an electric motor in electronic communication with the drive unit; and
a DC-to-DC converter comprising;
a first capacitor having a first and second terminal;
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, and the second terminal of the second switching device is coupled to the second terminal of the second capacitor to form a fourth node;
wherein the positive terminal of the energy storage device is coupled to the first node and the negative terminal of the energy storage device is coupled to the fourth node, and the first and second terminals of the drive unit are coupled to the second and fourth nodes, respectively. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An electric motor drive system comprising:
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an energy storage device having a positive and a negative terminal;
a drive unit having a first and second terminal;
an electric motor in electronic communication with the drive unit; and
a DC-to-DC converter comprising;
a first capacitor having a first and second terminal;
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, and the second terminal of the second switching device is coupled to the second terminal of the second capacitor to form a fourth node;
wherein the positive terminal of the energy storage device is coupled to the second node and the negative terminal of the energy storage device is coupled to the first node, and the first and second terminals of the drive unit are coupled to the second and fourth nodes, respectively. - View Dependent Claims (20)
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Specification