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US 9,871,450 B2Granted
Isolated step-up converter
AssigneeVanner, Inc.
InventorsAlexander Isurin, Alexander Cook
Life of this patent
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Abstract
An isolated step-up converter having first and second stages is described herein. The second stage can provide either DC or AC output based on the various topologies described. Resonance inductors and capacitors are used and tuned to a commutation frequency in some embodiments. Capacitors and inductors are also used in the first stage.
Claims6
A step-up converter having first and second isolated stages, the first isolated stage comprising:
- a DC power source;
- a first inductor having a first terminal connected to the DC power source and a second terminal connected to a first terminal of a first capacitor;
- a second terminal of the first capacitor connected to a first terminal of a primary stage of a transformer;
- a second inductor having a first terminal connected to the DC power source and a second terminal connected to a first terminal of a second capacitor;
- a second terminal of the second capacitor connected to a second terminal of the primary stage of the transformer;
- a first switch having a first terminal connected to the second terminal of the first inductor and to the first terminal of the first capacitor, the first switch having a second terminal connected to a ground;
- a second switch having a first terminal connected to the second terminal of the first capacitor and to the first terminal of the primary stage of the transformer, the second switch having a second terminal connected to the ground;
- a third switch having a first terminal connected to the second terminal of the second inductor and to the first terminal of the second capacitor, the third switch having a second terminal connected to the ground;
- and
- a fourth switch having a first terminal connected to the second terminal of the second capacitor and to the second terminal of the primary stage of the transformer, the fourth switch having a second terminal connected to the ground.
7 more elements
Dependencies are inferred from the claim text.