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 16):
The gate voltage control method of the IGBT according to  claim 15 , wherein when the IGBT is turned off and the collector-emitter voltage is less than a clamping voltage, the active clamping circuit injects charges into the voltage control circuit and a gate of the IGBT, and the control voltage outputted by the voltage control circuit controls the gate voltage to be 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): 0.8164977416166186
- 35 USC 102 Novelty (BERT): 0.5167929454624374
- Combined Prediction Score: 0.7865272620012005
- Mean Citation Score: 304.09233400000005
- Max Citation Score: 325.50946
- Similarity Product: 236.29990699981448

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

Dataset: test