PATENT CLAIM ANALYSIS

Application Number: 15762509
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["363", "053000"]

Abstract:
An IGBT short-circuit detection and protection circuit, comprising: a driving unit, the output end thereof outputting a PWM driving signal and being connected to gate ends of a first IGBT (IGBT1) and a second IGBT (IGBT2), so as to simultaneously control the turning ON/OFF of the first IGBT and the second IGBT; a comparing unit, comprising a threshold pin and a detection pin (Vdesat), the threshold pin being connected to a threshold voltage, the detection pin being connected by means of a first diode (D1) and a second diode (D3) to collectors (C) of the first IGBT and the second IGBT, respectively, the detection pin supplying a detection current to the first diode and the second diode, cathodes of the first diode and the second diode being connected to the collectors of the first IGBT and the second IGBT, respectively; when the voltage at the detection pin is higher than the threshold voltage, the driving unit controlling the first IGBT and the second IGBT to be turned off. The IGBT short-circuit detection protection circuit achieves bidirectional short-circuit protection of two IGBTs in inverse series connection, without requiring an additional protection circuit.

Claim (Index 10):
The IGBT-based controllable rectifier circuit as claimed in  claim 7 , characterized in that the drive unit and the comparison unit are integrated in a single chip.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 90.0
- Lexical Diversity: 2.82051
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14483846', '15910027', '14528888', '14478568', '14159945']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8392904339713232
- 35 USC 102 Novelty (BERT): 0.4962221765865789
- Combined Prediction Score: 0.8049836082328489
- Mean Citation Score: 258.446014
- Max Citation Score: 265.53662
- Similarity Product: 212.9375743771756

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