PATENT CLAIM ANALYSIS

Application Number: 15767058
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-08
Patent Classification: ["327", "109000"]

Abstract:
A gate-drive controller for a power semiconductor device includes a master control unit (MCU) and one or more comparators that compare the output signal of the power semiconductor device to a reference value generated by the MCU. The MCU, in response to a turn-off trigger signal, generates a first intermediate drive signal for the power semiconductor device and generates a second intermediate drive signal, different from the first drive signal, when a DSAT signal indicates that the power semiconductor device is experiencing de-saturation. The MCU generates a final drive signal for the power semiconductor when the output signal of the one or more comparators indicates that the output signal of the power semiconductor device has changed relative to the reference value. The controller may also include a timer that causes the drive signals to change in predetermined intervals when the one or more comparators do not indicate a change.

Claim (Index 13):
A gate-drive controller for a power semiconductor device comprising:\n a master control unit (MCU) having a desaturation (DSAT) input terminal configured to receive a DSAT signal, an output terminal configured to provide a DSAT comparison value and an output terminal that provides a drive signal for the power semiconductor device; a DSAT detector coupled to the power semiconductor device to determine the occurrence of a DSAT condition; wherein the MCU includes program instructions that cause the MCU to: generate a first drive signal for the power semiconductor device when a DSAT condition has occurred; hold the first drive signal for a first predetermined time interval; provide a second drive signal, different from the first drive signal, at the end of the first predetermined time interval; hold the second drive signal for a second predetermined time; and provide a third drive signal, different from the first and second drive signals, at the end of the second predetermined time interval.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 91.0
- Lexical Diversity: 2.37313
- Patent Class: 327.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15074364', '15627363', '14439607', '15862202', '12897137']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7157268052044906
- 35 USC 102 Novelty (BERT): 0.5401939249643938
- Combined Prediction Score: 0.6981735171804809
- Mean Citation Score: 210.510204
- Max Citation Score: 381.80756
- Similarity Product: 291.8057280846691

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