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 24):
A gate-drive controller for a power semiconductor device comprising:\n a comparator having a reference input terminal, a signal input terminal, coupled to receive an output signal of the power semiconductor device, and an output terminal, the comparator providing a Boolean output signal that is in a first state when a value of a signal applied to the signal input terminal is less than a reference value applied to the reference input terminal and in a second state when the value of the signal applied to the signal input terminal is greater than or equal to the reference value applied to the reference input terminal; a master control unit (MCU) having a first input terminal configured to receive a trigger pulse having a rising edge and a falling edge, a second input terminal configured to receive the Boolean signal provided by the comparator, a first output terminal configured to provide a drive signal for the power semiconductor device and a second output terminal configured to provide the reference value to the comparator; wherein the MCU includes program instructions that cause the MCU to: in response to detecting the rising edge of the trigger pulse, generate a first reference value and a first drive signal for the power semiconductor device the first drive signal tending to turn the power semiconductor device partially on; generate a second drive signal for the power semiconductor device when the Boolean signal changes between the first state and the second state, wherein the second drive signal tends to turn the power semiconductor device completely on; in response to the falling edge of the trigger pulse, generate a second reference value and a third drive signal for the power semiconductor device, the third drive signal tending to turn the power semiconductor device partially off; generate a fourth drive signal for the power semiconductor device when the Boolean signal changes between the second state and the first state, the fourth drive signal tending to turn the power semiconductor device completely off.

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): 0.7134706132663776
- 35 USC 102 Novelty (BERT): 0.5419080304222366
- Combined Prediction Score: 0.6963143549819636
- Mean Citation Score: 210.510204
- Max Citation Score: 381.80756
- Similarity Product: 377.5082123468972

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