PATENT CLAIM ANALYSIS

Application Number: 16142642
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-04
Patent Classification: ["363", "126000"]

Abstract:
An electric power conversion device has an electric power converter and a control device. The control device adjusts an output voltage of the electric power converter to approach a first current flowing a first drive switch to an instruction current during a first period in which an input voltage supplied from an AC power source has a positive polarity, and adjusts the output voltage of the electric power converter to approach a second current flowing a second drive switch to the instruction current during a second period in which the input voltage supplied from the AC power source has a negative polarity. The control device operates a switch arranged in a second current sensor during the first period, and operates a switch arranged in a first current sensor during the second period.

Claim (Index 1):
An electric power conversion device comprising:\n an electric power converter, capable of converting an input alternating current voltage (input AC voltage) supplied from an alternating current power source (AC power source) to a direct current voltage (DC voltage), and of supplying the DC voltage through an output terminal of the electric power conversion device to outside; and a control device capable of controlling the electric power converter, wherein the electric power converter comprises a reactor connected to the AC power source, a first drive switch, a second drive switch, a first current sensor connected to the first drive switch, and a second current sensor connected to the second drive switch, wherein the first current sensor comprises a first current transformer, a first detection resistance, a first rectifier diode, and a detection switch, the first current transformer comprising a primary coil and a secondary coil, the first detection resistance connected parallel with the secondary coil of the first current transformer, the first rectifier diode capable of allowing a current to flow from the secondary coil to the first detection resistance when a positive current flows in the secondary coil of the first current transformer, and capable of prohibiting the current from flowing to the first detection resistance from the secondary coil of the first current transformer when a negative current flows in the secondary coil of the first current transformer, and the detection switch arranged parallel with one of the primary coil, the secondary coil, an auxiliary coil magnetically connected with the primary coil and the secondary coil of the first transformer, the second current sensor comprises a second current transformer, a second detection resistance, a second rectifier diode, and a detection switch, the second current transformer comprising a primary coil and a secondary coil, the second detection resistance connected parallel with the secondary coil of the second current transformer, the second rectifier diode capable of allowing a current to flow from the secondary coil of the second current transformer to the second detection resistance when a positive current flows in the secondary coil of the second current transformer, and capable of prohibiting the current from flowing to the second detection resistance from the secondary coil of the second current transformer when a negative current flows in the secondary coil of the second current transformer, and the detection switch being arranged parallel with one of the primary coil, the secondary coil, an auxiliary coil magnetically connected with the primary coil and the secondary coil of the second transformer, wherein the control device performs turns on/off control of the first drive switch and the second drive switch so as to determine, as an instruction current, a first current flowing in the first drive switch during a first period in which the input AC voltage has a positive polarity, and to determine, as the instruction current, a second current flowing in the second drive switch during a second period in which the input AC voltage has a negative polarity, and the control device turns on the detection switch of the second current sensor during the first period, and turns on the detection switch of the first current sensor during the second period.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 97.0
- Lexical Diversity: 3.18605
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11526966', '13462755', '11545040', '15987396', '11508497']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8299104647546135
- 35 USC 102 Novelty (BERT): 0.4955086976883318
- Combined Prediction Score: 0.7964702880479854
- Mean Citation Score: 274.480516
- Max Citation Score: 283.99164
- Similarity Product: 239.8235442740965

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

Dataset: test