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 14):
The four-level inverter topology unit of  claim 11 , wherein the first circuit module further comprises a first bidirectional switch, a second bidirectional switch, a third bidirectional switch, a fourth bidirectional switch, a first diode, a second diode, a first current-limiting inductor and a second current-limiting inductor.\n the first terminal of the first bidirectional switch is connected with both the first terminal of the first circuit module and a first terminal of the first current-limiting inductor, and the second terminal of the first bidirectional switch is connected with a first terminal of the second current-limiting inductor whose second terminal is connected to the second terminal of the first circuit module; a second terminal of the first current-limiting inductor is connected to the first terminal of the second bidirectional switch whose second terminal is connected to the second terminal of the first circuit module; the first terminal of the third bidirectional switch is connected with the second terminal of the first current-limiting inductor and the second terminal of the third bidirectional switch is connected with the positive terminal of the first diode whose negative terminal is connected to the third terminal of the first circuit module; the second terminal of the fourth bidirectional switch is connected to the first terminal of the second current-limiting inductor and the first terminal of the fourth bidirectional switch is connected to the negative terminal of the second diode whose positive terminal is connected to the fourth terminal of the first circuit module.

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): 0.844261535172766
- 35 USC 102 Novelty (BERT): 0.5736830296134342
- Combined Prediction Score: 0.8172036846168329
- Mean Citation Score: 401.077892
- Max Citation Score: 483.06448
- Similarity Product: 377.5895711151505

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