PATENT CLAIM ANALYSIS

Application Number: 16234860
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-08
Patent Classification: ["327", "109000"]

Abstract:
A semiconductor device includes a power semiconductor switching element, a comparator circuit, a filter circuit and an erroneous-detection prevention circuit. The comparator circuit compares a value of an output voltage of the switching element with a threshold and outputs a comparison result as a determination signal. The filter circuit outputs the determination signal to the control circuit after a delay time required for the output voltage of the switching element to reach a predetermined voltage value for determining that the switching element is in a normal ON state after the switching element is turned on. The erroneous-detection prevention circuit changes a turn-on time of the switching element, the delay time, or a voltage value of the determination signal when a voltage of the power supply drops in a case where the switching element is normally turned on.

Claim (Index 1):
A semiconductor device which includes a power semiconductor switching element configured to drive a load with electric power from a power supply by switching, and which is configured to output a determination signal for detecting whether the power semiconductor switching element is in a normal ON state to a control circuit configured to perform the detection, the semiconductor device comprising:\n a comparator circuit configured to compare a value of an output voltage of the power semiconductor switching element with a threshold representing an overcurrent state of the power semiconductor switching element and output a comparison result as the determination signal; a filter circuit provided on an output side of the comparator circuit so as to output the determination signal to the control circuit after a delay time required for the output voltage of the power semiconductor switching element to reach a predetermined voltage value for determining that the power semiconductor switching element is in the normal ON state after the power semiconductor switching element is turned on; and an erroneous-detection prevention circuit configured to change a turn-on time of the power semiconductor switching element, the delay time, or a voltage value of the determination signal when a voltage of the power supply drops in a case where the power semiconductor switching element is normally turned on, so as to prevent an error in overcurrent state detection which is performed by the control circuit.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 98.0
- Lexical Diversity: 2.45763
- Patent Class: 327.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10947274', '14023619', '11180702', '12538640', '10754604']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.744181496389676
- 35 USC 102 Novelty (BERT): 0.4915611959987704
- Combined Prediction Score: 0.7189194663505856
- Mean Citation Score: 231.068998
- Max Citation Score: 235.56885
- Similarity Product: 181.66739777761103

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

Dataset: test