PATENT CLAIM ANALYSIS

Application Number: 16180636
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-10
Patent Classification: ["363", "041000"]

Abstract:
A sinusoidal modulation method and a three-phase inverter are disclosed. A pulse driving signal controller is disposed to connect the three-phase inverter. The pulse driving signal controller controls the transistors of the three-arm full-bridge architecture. By examining the phase angle of the output current, operations of the upper and lower bridge power transistors can be adjusted, so that three power transistors are turned on and the other three power transistors are turned off during the PWM operations. As a result, the dead time is not required to set during the PWM operation for preventing a short-circuit due to dynamic switching errors of the upper and lower bridge power transistors. The requirements of the hardware circuits can be also reduced.

Claim (Index 6):
A three-phase inverter, comprising:\n three phase arms, wherein each of the three phase arms comprises two bridge arms, and two bridge arms are controlled by a lower bridge transistor and an upper bridge transistor, respectively; and a pulse driving signal controller electrically connected the upper bridge transistors and the lower bridge transistors of the three phase arms; wherein, for each of the three phase arms, the pulse driving signal controller performs the following operations: determining whether a sinusoidal control signal of a phase angle is positive, and turning on the upper bridge transistor and turning off the lower bridge transistor, or turning off the upper bridge transistor and turning on the lower bridge transistor according to determination result, so that upper bridge transistor and the lower bridge transistor in each of the three phase arms are turned-on in one half period and turned-off in the other half period for each sinusoidal cycle; and according to whether a duty cycle corresponding to the phase angle is higher than a triangular carrier wave, transmitting a pulse control signal to the turned-on upper bridge transistor or the turned-on lower bridge transistor.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 98.0
- Lexical Diversity: 1.80282
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13121044', '13311592', '13055610', '11570639', '14140922']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7841013520410267
- 35 USC 102 Novelty (BERT): 0.4825938166689558
- Combined Prediction Score: 0.7539505985038196
- Mean Citation Score: 212.47095
- Max Citation Score: 218.55324
- Similarity Product: 176.75809262775417

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

Dataset: test