PATENT CLAIM ANALYSIS

Application Number: 15768552
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["363", "123000"]

Abstract:
A single-phase four-level inverter circuit topology and a three-phase four-level inverter circuit topology. The single-phase four-level inverter circuit topology is adapted to be used with two series-connected direct current power sources, so as to enable a first direct current power source or a second direct current power source to supply power to a load of the four-level inverter circuit topology, alternatively, any one of two direct current power sources is first algebraically superimposed with a flying capacitor and then supplies the power to the load of the four-level inverter circuit topology (M), thereby making the four-level inverter circuit topology output four different levels. The single-phase and three-phase four-level inverter circuit topologies reduce the system cost and volume by using a flying capacitor, the voltage utilization rate is three times that of the existing four-level inverter circuit topology under the same operating conditions, and the direct current side neutral point voltage can be balanced without requiring additional circuits.

Claim (Index 6):
The four-level inverter topology unit of  claim 5 , wherein the first circuit module comprises a first terminal, a second terminal, a third terminal and a fourth terminal;\n there is at least one circuit branch between the first terminal and the third terminal, and between the second terminal and the fourth terminal; the first terminal of the first circuit module is connected to the positive terminal of the first DC power supply, and the second terminal of the first circuit module is connected to the negative terminal of the second DC power supply; the second circuit module comprises a first input terminal, a second input terminal, a third input terminal, a fourth input terminal and an output terminal; there is at least one circuit branch between each of the input terminals and the output terminal; the third terminal of the first circuit module is connected to the third input terminal of the second circuit module and the fourth terminal of the first circuit module is connected to the fourth input terminal of the second circuit module; the first input terminal of the second circuit module is connected to the positive terminal of the first DC power supply and the second input terminal of the second circuit module is connected to the negative terminal of the second DC power supply; the output terminal of the second circuit module is connected to a first terminal of AC utilities or AC load.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 91.0
- Lexical Diversity: 2.1
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15767721', '15751329', '14690761', '15547005', '15770493']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8430578762221348
- 35 USC 102 Novelty (BERT): 0.5787668100906823
- Combined Prediction Score: 0.8166287696089896
- Mean Citation Score: 401.077892
- Max Citation Score: 483.06448
- Similarity Product: 406.7052261094475

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