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 8):
A gate-drive controller for a power semiconductor device comprising:\n a master control unit (MCU) having a first input terminal configured to receive a desaturation (DSAT) signal indicating that the power semiconductor device is experiencing a DSAT condition and an output terminal that provides a drive signal for the power semiconductor device; and a comparator having an output terminal coupled to the MCU and first and second input terminals, the first input terminal coupled to receive a signal representing an output signal of the power semiconductor device, the second input terminal coupled to receive, from the MCU, a target value representing an expected value of the output signal of the power semiconductor device and to provide, at the output terminal, a Boolean output signal having a first value when the signal representing the output signal of the power semiconductor device is greater than the target value and having a second value when the signal representing the output signal of the power semiconductor is less than or equal to the target value; wherein the MCU includes program instructions that cause the MCU to:\n generate a first drive signal for the power semiconductor device and a first target value for the comparator when the DSAT signal indicates that the power semiconductor device experiencing a DSAT condition; \n hold the first drive signal until the Boolean signal exhibits a first transition between the first value and the second value; \n provide a second drive signal, different from the first drive signal, and a second target value to the comparator in response to the first transition of the Boolean signal between the first and second values; \n hold the second drive signal until the Boolean signal exhibits a second transition between the first and second values; and \n provide a third drive signal, different from the first and second drive signals, in response to the second transition of the Boolean signal.

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): 0.7146407222435064
- 35 USC 102 Novelty (BERT): 0.5410202113011348
- Combined Prediction Score: 0.6972786711492693
- Mean Citation Score: 210.510204
- Max Citation Score: 381.80756
- Similarity Product: 333.1135107804203

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