PATENT CLAIM ANALYSIS

Application Number: 16197139
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["363", "071000"]

Abstract:
A sequential extraction control device for use in a 3-phase DC/AC converter. The 3-phase converter has three single-phase DC/AC converters, each controlled by a respective PWM extractor. Duty factor adjustments are made depending on a current portion of an AC power cycle. A sequential regulator causes the PWM extractors to have non-overlapping duty cycles such that extractions of each of the single-phase DC/AC converters is performed in sequence, rather than concurrently. This improves the efficiency in extracting power from the DC power.

Claim (Index 11):
A sequential extraction control device for use in a 3-phase DC/AC converter that comprises a first single-phase DC/AC converter comprising a first PWM extractor to extract from DC power first AC power that has a first phase and that conforms to a power grid convention, a second single-phase DC/AC converter comprising a second PWM extractor to extract from the DC power second AC power that has a second phase and that conforms to the power grid convention, and a third single-phase DC/AC converter comprising a third PWM extractor to extract from the DC power third AC power that has a third phase and that conforms to the power grid convention, the sequential extraction control device comprising:\n a sequential regulator that causes the first PWM extractor to have a first duty cycle during which the first PWM extractor performs extraction, causes the second PWM extractor to have a second duty cycle during which the second PWM extractor performs extraction, and causes the third PWM extractor to have a third duty cycle during which the third PWM extractor performs extraction; and such that the first, second and third duty cycles do not overlap, such that the first, second and third PWM extractors perform extraction sequentially, the sequential regulator configured to direct duty factor adjustments for the first, second, and third duty cycles depending on a current portion of an AC power cycle of at least one of the first AC power, the second AC power and the third AC power, the duty factor adjustments being such that the first duty cycle is 2/3 cos 2 (\u03c9t), the second duty cycle is 2/3 cos 2 (\u03c9t+120\u00b0), and the third duty cycle is 2/3 cos 2 (\u03c9t\u2212120\u00b0) as function of time t in the AC power cycle.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 98.0
- Lexical Diversity: 1.4127
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16024480', '15424566', '12902049', '15796506', '14562429']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8281518790598336
- 35 USC 102 Novelty (BERT): 0.5206003855602291
- Combined Prediction Score: 0.7973967297098732
- Mean Citation Score: 261.448348
- Max Citation Score: 346.75342
- Similarity Product: 283.92871793103694

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