PATENT CLAIM ANALYSIS

Application Number: 15910027
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["327", "109000"]

Abstract:
The present disclosure discloses a gate voltage control circuit of an IGBT and a control method thereof. The gate voltage control circuit of the IGBT comprises a voltage control circuit, an active clamping circuit and a power amplifier circuit. A control voltage outputted by the voltage control circuit indirectly controls a gate voltage of the IGBT, so as to achieve a better control of the gate voltage of the IGBT with a smaller loss. It may prevent the active clamping circuit from a too-early response and may increase the active clamping circuit response speed; and may avoid the voltage oscillation of the collector-emitter voltage Vce and the gate voltage Vge, and may improve the reliability of the IGBTs connected in series.

Claim (Index 12):
The gate voltage control circuit of the IGBT according to  claim 8 , wherein when the IGBT is turned off and the collector-emitter voltage is less than a clamping voltage, the second terminal of the active clamping circuit injects charges into the gate of the IGBT and the voltage control circuit, and the gate voltage outputted by the voltage control circuit is less than a gate threshold voltage.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 90.0
- Lexical Diversity: 2.30357
- Patent Class: 327.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11986615', '15034952', '14483846', '13098287', '14438232']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8165081564334207
- 35 USC 102 Novelty (BERT): 0.5164569603584411
- Combined Prediction Score: 0.7865030368259227
- Mean Citation Score: 304.09233400000005
- Max Citation Score: 325.50946
- Similarity Product: 239.33705722539065

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