PATENT CLAIM ANALYSIS

Application Number: 15950666
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["363", "132000"]

Abstract:
An ANPC inverter, a zero-crossing switching method and a zero-crossing switching apparatus of the ANPC inverter are provided. The method includes: controlling switch states of switch devices in a bridge leg to change according to a preset logic when zero-crossing switching occurs in an output voltage instruction of the bridge leg, so as to prevent overvoltage in the switch device in the bridge leg. The preset logic includes switching among a sequence of switch state combinations. Switch state combinations of the switch devices before and after the zero-crossing switching occurs are defined as the first and second switch state combinations of the sequence. The second to the penultimate switch state combinations are all safe switch state combinations selected in advance, in each of which a maximum voltage borne by the switch devices in the bridge leg is clamped to a safe limit value.

Claim (Index 7):
The zero-crossing switching apparatus of an active neutral point clamped inverter according to  claim 6 , wherein the safe switch state combinations comprise:\n a switch state combination in which at least one clamping transistor in the bridge leg is switched on, and a switch state combination in which only two inner transistors in the bridge leg are switched on.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 91.0
- Lexical Diversity: 2.33846
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15662044', '12095546', '15806352', '14153103', '14211719']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7862679634784933
- 35 USC 102 Novelty (BERT): 0.5049044139030688
- Combined Prediction Score: 0.7581316085209509
- Mean Citation Score: 201.902512
- Max Citation Score: 238.01175
- Similarity Product: 163.32590973597766

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