PATENT CLAIM ANALYSIS

Application Number: 15904679
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["363", "017000"]

Abstract:
A DC-DC converter includes a full-bridge circuit connected to a primary winding of a transformer and a full-bridge circuit connected to a secondary winding of the transformer. The full-bridge circuit includes a first series circuit including a first set of switching elements, a second series circuit including a second set of switching elements, a first charge-discharge capacitor connected to a node between a first pair of the first switching elements and a node between a second pair of first switching elements, and a second charge-discharge capacitor connected to a node between the a first pair of the second switching elements and a node between a second pair of the second switching elements. The full-bridge circuit can operate in one of a full-bridge operation mode and a half-bridge operation mode. The disclosed DC-DC converter can constantly operate with high efficiency even when the variation range of a load is wide.

Claim (Index 1):
A direct current-to-direct current converter comprising:\n an input configured to receive a direct-current voltage V 1 ; an output configured to output a direct-current voltage V 2 ; a first full-bridge circuit connected to the input; a second full-bridge circuit connected to the output; a transformer having a first winding connected to the first full-bridge circuit and a second winding connected to the second full-bridge circuit; and a controller configured to perform switching control of the first full-bridge circuit, wherein the first full-bridge circuit includes:\n a first series circuit including first, second, third and fourth switching elements sequentially connected in series to each other, \n a second series circuit connected in parallel to the first series circuit and including fifth, sixth, seventh and eighth switching elements sequentially connected in series to each other, \n a first floating capacitor connected to a first node between the first and second switching elements and a second node between the third and fourth switching elements, and \n a second floating capacitor connected to a third node between the fifth and sixth switching elements and a fourth node between the seventh and eighth switching elements, \n wherein a first end of the first winding of the transformer is connected to a fifth node between the second and third switching elements and a second end of the first winding of the transformer is connected to a sixth node between the sixth and seventh switching elements, and wherein the controller performs the switching control of the first full-bridge circuit in at least two modes including a full-bridge operation mode in which the first to eighth switching elements are controlled so that the direct-current voltage V 1  is applied to the first and second ends of the first winding of the transformer and a half-bridge operation mode in which the first to eighth switching elements are controlled so that half of the direct-current voltage V 1  is applied to the first and second ends of the first winding of the transformer.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 88.0
- Lexical Diversity: 3.12
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12315166', '11965327', '15764776', '12524640', '12021793']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8042888425464466
- 35 USC 102 Novelty (BERT): 0.5061760066169652
- Combined Prediction Score: 0.7744775589534985
- Mean Citation Score: 281.553016
- Max Citation Score: 292.86578
- Similarity Product: 245.22199958259225

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test