Voltage converter with soft communication networks
First Claim
1. A voltage converter comprising:
- a primary path configured to generate a pulse modulated voltage or current from an input direct current (DC) voltage;
a transformer arrangement with m≧
1 primary windings and n≧
2 secondary windings inductively coupled together, the m primary windings being connected to the primary path; and
a secondary path configured to output a pulsed direct current (DC) voltage or current, wherein the secondary path comprises n capacitors connected in series and n secondary controllable semiconductor switches, and wherein each of the n secondary windings is connected via at least one of the secondary controllable semiconductor switches to at least one of the capacitors; and
n soft commutation networks, each connected in parallel to one of the n secondary controllable semiconductor switches, wherein each of the n soft commutation networks comprises;
a series connection of a commutation inductance, a first commutation diode and a commutation capacitor, the series connection being connected in parallel to the respective secondary controllable semiconductor switch and the commutation inductance being connected to a node between the secondary controllable semiconductor switch and the respective one of the n capacitors; and
a second commutation diode connected between the node between the first commutation diode and the commutation capacitor, and the node between the respective secondary winding and the respective one of the n capacitors.
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Accused Products
Abstract
Embodiments of the present invention describe a voltage converter and a method for operating the voltage converter. In one embodiment the voltage converter includes a primary path configured to generate a pulse modulated voltage or current from an input direct current (DC) voltage, a transformer arrangement with m≧1 primary windings and n≧2 secondary windings inductively coupled together, the m primary windings being connected to the primary path, and a secondary path configured to output a pulsed direct current (DC) voltage or current, wherein the secondary path includes n capacitors connected in series and n secondary controllable semiconductor switches, and each of the n secondary windings is connected via at least one of the secondary controllable semiconductor switches to at least one of the capacitors.
12 Citations
16 Claims
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1. A voltage converter comprising:
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a primary path configured to generate a pulse modulated voltage or current from an input direct current (DC) voltage; a transformer arrangement with m≧
1 primary windings and n≧
2 secondary windings inductively coupled together, the m primary windings being connected to the primary path; anda secondary path configured to output a pulsed direct current (DC) voltage or current, wherein the secondary path comprises n capacitors connected in series and n secondary controllable semiconductor switches, and wherein each of the n secondary windings is connected via at least one of the secondary controllable semiconductor switches to at least one of the capacitors; and n soft commutation networks, each connected in parallel to one of the n secondary controllable semiconductor switches, wherein each of the n soft commutation networks comprises; a series connection of a commutation inductance, a first commutation diode and a commutation capacitor, the series connection being connected in parallel to the respective secondary controllable semiconductor switch and the commutation inductance being connected to a node between the secondary controllable semiconductor switch and the respective one of the n capacitors; and a second commutation diode connected between the node between the first commutation diode and the commutation capacitor, and the node between the respective secondary winding and the respective one of the n capacitors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification