PATENT CLAIM ANALYSIS

Application Number: 15914630
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["363", "071000"]

Abstract:
A circuit according to an embodiment includes a circuit configured to, for each of values of output currents output from power conversion devices connected in parallel to one another and driven based on common ON signals applied to the power conversion devices, output a difference between the output current value and a reference value when a polarity of the output current value is positive, and output a difference between an absolute value of the output current value and an absolute value of the reference value when the polarity of the output current value is negative; and a circuit configured to output adjustment time signals each of which indicates an amount of a delay time of a rising timing or a falling timing of the ON signal, according to an output value of the output current difference calculation circuit.

Claim (Index 4):
A power conversion system comprising:\n a control device including a current balance adjustment circuit according to  claim 1 , and configured to provide the ON signals and the adjustment time signals to the plurality of power conversion devices; and the plurality of power conversion devices, wherein AC output terminals of the plurality of power conversion devices are connected in parallel to one another, each of the power conversion devices comprises: a two-level conversion circuit including an upper arm and a lower arm in which the switching devices having diodes connected in anti-parallel between a positive electrode and a negative electrode of a DC power source are connected in series; a current detection circuit configured to detect an AC output current of the power conversion device; and a delay circuit configured to receive the adjustment time signals and the ON signals each of which instructs ON and OFF to each of the switching devices of the plurality of power conversion devices, and delay each of an ON timing and an OFF timing of each of the ON signals based on the adjustment time signals, the control device is configured to receive, from the current detection circuit, an AC output current value after the switching device of the power conversion device is turned off, when a polarity of a detected current value is positive and the detected current value is greater than the reference value at the time of OFF, the control device is configured to generate a signal which decreases a delay time of a next OFF timing of the switching device of the upper arm of the power conversion device, when the polarity of the detected current value is positive and the detected current value is less than the reference value at the time of OFF, the control device is configured to generate a signal which increases a delay time of a next OFF timing of the switching device of the upper arm of the power conversion device, when the polarity of the detected current value is negative and an absolute value of the detected current value is greater than an absolute value of the reference value at the time of OFF, the control device is configured to generate a signal which decreases a delay time of a next OFF timing of the switching device of the lower arm of the power conversion device, and when the polarity of the detected current value is negative and the absolute value of the detected current value is less than the absolute value of the reference value at the time of OFF, the control device is configured to generate a signal which increases a delay time of a next OFF timing of the switching device of the lower arm of the power conversion device,

Metadata:
- Claim Count in Document: 7.0
- Percentile: 90.0
- Lexical Diversity: 2.44068
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13832998', '14901317', '12881624', '12440934', '15763325']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8048728718868429
- 35 USC 102 Novelty (BERT): 0.4556211924398524
- Combined Prediction Score: 0.7699477039421438
- Mean Citation Score: 173.44903399999995
- Max Citation Score: 183.48312
- Similarity Product: 158.56125578696253

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