PATENT CLAIM ANALYSIS

Application Number: 15923340
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["363", "132000"]

Abstract:
A power conversion apparatus is provided in which an upper arm semiconductor device, a lower arm semiconductor device and a capacitor. At least either upper arm semiconductor device or lower arm semiconductor device constitutes a parallel-connected body. In an opposite arm against the parallel-connected body, a permissible element is provided. In the switching elements that constitute the parallel-connected body, a last off element and a non-last off circuit are identified. Inductance of a last off closed circuit where current flows through the last off element, reflux element in the opposite arm and the capacitor is smaller than inductance of a non-last off closed circuit where current flows through the last off element, reflux element in the opposite arm and the capacitor.

Claim (Index 1):
A power conversion apparatus comprising:\n a high potential line and a low potential line; an upper arm semiconductor device connected to the high potential line; a lower arm semiconductor device serially connected to the upper arm semiconductor device and connected to the low potential line; and a capacitor connected between the high potential line and the low potential line, wherein at least one of the upper arm semiconductor device and the lower arm semiconductor device which are serially connected to each other constitutes a parallel-connected body configured of two or more switching elements connected in parallel; a reflux element is provided at least in an opposite arm opposite to an arm configured of the parallel-connected body among the upper arm semiconductor device and the lower arm semiconductor device, the reflux element allowing current to flow towards a high-potential line side from a low potential line side; the switching elements that constitute the parallel-connected body are controlled such that turn-off timings are to be different from each other; a last off element that turns off last and a non-last off element as the other element are identified among the switching elements that constitute the parallel-connected body; inductance of a last off closed circuit where current passes through the last off element, the reflux element in an opposite arm opposite to the last off element and the capacitor is smaller than inductance of a non-last off closed circuit where current passes through the non-last off element connected in parallel to the last off element, the reflux element in an opposite arm opposite to the last off element and the capacitor.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 90.0
- Lexical Diversity: 2.4717
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16090145', '15657856', '12826409', '16307103', '14693281']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8114673670252465
- 35 USC 102 Novelty (BERT): 0.4771571674417589
- Combined Prediction Score: 0.7780363470668977
- Mean Citation Score: 203.545422
- Max Citation Score: 221.1572
- Similarity Product: 177.77258726363183

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test