PATENT CLAIM ANALYSIS

Application Number: 15943164
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["363", "053000"]

Abstract:
A converter apparatus includes: a converter for converting an AC voltage into a DC voltage; a DC link capacitor connected to the converter; a voltage detector for DC link voltage; a charging circuit for the DC link capacitor; a charging circuit controller for a switch connected with a charging resistor; a current detector for detecting a current of the converter; a turn-on controller for controlling the turning-on of power devices; a switch for connecting or disconnecting a power supply; a power supply monitor for monitoring a connection state of the power supply; a threshold value setter for setting a first or second threshold value; and a failure detector for determining the presence or absence of the failure of the power devices by a comparison between a current flowing upon turning on the power device, immediately after disconnection of the power supply, and the first or second threshold value.

Claim (Index 1):
A converter apparatus comprising:\n a converter including a plurality of power devices, configured to convert an AC voltage supplied from a power supply into a DC voltage, and output the DC voltage; a DC link capacitor connected to an output side of the converter; a voltage detector configured to detect a voltage of the DC link capacitor; a charging circuit disposed between the converter and the DC link capacitor, configured to charge the DC link capacitor; a charging circuit controller configured to control a switch connected in parallel with a charging resistor in the charging circuit; a current detector configured to detect a current flowing between the converter and the DC link capacitor; a turn-on controller configured to control turning-on of the power devices of the converter; a switch configured to connect or disconnect between the power supply and the converter; a power supply monitor configured to control switching of the switch, and to monitor a connection state between the power supply and the converter by detecting a voltage to be inputted to the converter; a threshold value setter configured to set a first threshold value or a second threshold value to determine the presence or absence of a failure of the power devices; and a failure detector configured to determine the presence or absence of the failure of the power devices by a comparison between a current flowing upon turning on the power device of the converter using electric charge of the DC link capacitor, immediately after the switch disconnects the power supply from the converter and the switch is turned off, and the first threshold value or the second threshold value.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 91.0
- Lexical Diversity: 2.45455
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15622797', '14731557', '13930561', '13360844', '13803805']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8127236856620729
- 35 USC 102 Novelty (BERT): 0.4737293420517371
- Combined Prediction Score: 0.7788242513010394
- Mean Citation Score: 211.070246
- Max Citation Score: 216.45755
- Similarity Product: 177.13307251557708

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

Dataset: test