PATENT CLAIM ANALYSIS

Application Number: 15866239
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-06
Patent Classification: ["363", "021030"]

Abstract:
The zero voltage switching quasi-resonant PFC buck-boost converter is directed to a circuit and method of operating the circuit that provides improved efficiency, decreased switching losses and operation at higher frequencies as compared to conventional bridgeless PFC buck-boost converter. The zero voltage switching quasi-resonant PFC buck-boost converter includes a buck transistor switch coupled to an input AC voltage source, a PFC transistor switch and a PFC diode coupled to an output voltage bulk capacitor, and a zero crossing detect inductor magnetically coupled to a buck-boost inductor for determining minimum voltage levels at which to turn ON the buck transistor switch and the PFC transistor switch. The zero voltage switching quasi-resonant PFC buck-boost converter with voltage shifter control addresses the problems of conventional bridgeless PFC buck-boost converters by using different voltage modes and zero crossing detection control.

Claim (Index 2):
The bridgeless power factor correction buck-boost converter of  claim 1  wherein a cathode of the first diode, a first node of the first transistor, and a first node of the first inductor are commonly coupled.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 86.0
- Lexical Diversity: 2.05797
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14262660', '14586151', '14337497', '13429028', '12429465']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8570583718254868
- 35 USC 102 Novelty (BERT): 0.5155864677160791
- Combined Prediction Score: 0.8229111814145461
- Mean Citation Score: 303.300748
- Max Citation Score: 322.2747
- Similarity Product: 260.08898879159693

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

Dataset: test