PATENT CLAIM ANALYSIS

Application Number: 16017121
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["327", "427000"]

Abstract:
A FET driving circuit includes: inputs into which a DC voltage is inputted; outputs connected to gate and source electrodes of a FET; a switch; a capacitance connected across the switch; and an LC resonance circuit connected in series with the switch across the inputs. A voltage generated across the switch during switching is outputted to drive the FET. The LC resonance circuit has a first connector connected to one input and a second connector connected to the switch, and is configured with a path including an inductance and a path including an inductance and a capacitance. An impedance between the first and second connectors has two resonant frequencies. The impedance has a local maximum at the lower resonant frequency, which is higher than a switching frequency, and a local minimum at the higher resonant frequency, which is around double the switching frequency.

Claim (Index 1):
A FET driving circuit comprising\n two direct current (DC) input terminals that are positive and negative and into which a DC voltage is inputted; two output terminals connected to a gate electrode and a source electrode of a FET to be driven; a switch with two ends; a resonant capacitance connected across both ends of the switch; and an LC resonance circuit connected in series with the switch across the DC input terminals, wherein a voltage generated across both ends of the switch during a switching operation is outputted across the two output terminals as a driving voltage for the FET, the LC resonance circuit has a first connector that is connected to one DC input terminal out of the two DC input terminals and a second connector that is connected to the switch, the LC resonance circuit is configured as a single-terminal-pair network in which a current path including an inductance and a current path including a series circuit composed of an inductance and a capacitance are formed between the first connector and the second connector, in the LC resonance circuit, frequency characteristics of an impedance between the first connector and the second connector have two resonant frequencies, a first resonant frequency that is a lower frequency out of the two resonant frequencies is higher than a switching frequency of the switch and the impedance has a local maximum at the first resonant frequency, and a second resonant frequency that is a higher frequency out of the two resonant frequencies is around double the switching frequency and the impedance has a local minimum at the second resonant frequency.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 94.0
- Lexical Diversity: 2.30882
- Patent Class: 327.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16016879', '15790354', '16012099', '15268118', '13127890']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7586188841488536
- 35 USC 102 Novelty (BERT): 0.5420858400841541
- Combined Prediction Score: 0.7369655797423836
- Mean Citation Score: 306.786186
- Max Citation Score: 387.98425
- Similarity Product: 348.87412805843354

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