PATENT CLAIM ANALYSIS

Application Number: 15948380
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["363", "037000"]

Abstract:
Systems, methods, and articles of manufacture are provided wherein inverter topologies and inverter control employ primary and secondary windings with a half-bridge circuit and an unfolding bridge circuit positioned between the second winding and an AC grid. Certain topologies may employ control circuits for controlling the bridges suitable for a phase angle of the AC grid.

Claim (Index 12):
A multi-port inverter for converting an input direct current (DC) waveform from a DC source to an output alternating current (AC) waveform for delivery to an AC grid, the inverter comprising:\n a transformer; a DC-AC inverter electrically coupled to a first winding of the transformer, wherein the DC-AC inverter is adapted to convert the input DC waveform to an AC waveform delivered to the transformer at the first winding; an AC-AC converter electrically coupled to a second winding of the transformer and adapted to convert the AC waveform received at the second winding of the transformer to the output AC waveform having a grid frequency of the AC grid, the AC-AC converter comprising:\n a half-bridge circuit electrically coupled to the first winding of the transformer; and \n an unfolding bridge circuit electrically coupled between the half-bridge circuit and the AC grid; \n an active filter electrically coupled to a winding of the transformer wherein the active filter is adapted to sink and source power with one or more energy storage devices based on a mismatch in power between the DC source and the AC grid; and a controller electrically coupled to receive an AC voltage from the AC grid and having an output signal comprising an estimate of the phase angle of the AC voltage, wherein the controller, in response to the estimated phase angle of the AC voltage, controls the switching cycles of a plurality of electrical switches of the AC-AC converter.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 91.0
- Lexical Diversity: 1.46341
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15199239', '15080142', '15080110', '14214896', '12563499']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.79192581620734
- 35 USC 102 Novelty (BERT): 0.5221162413860857
- Combined Prediction Score: 0.7649448587252147
- Mean Citation Score: 270.69422000000003
- Max Citation Score: 343.5232
- Similarity Product: 338.97414076728825

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

Dataset: test