PATENT CLAIM ANALYSIS

Application Number: 16134906
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-05
Patent Classification: ["363", "021140"]

Abstract:
A ZVS (zero voltage switching) control circuit for use in a flyback power converter includes a primary side controller circuit, a secondary side controller circuit, and a pulse transformer. In one switching cycle, a synchronous rectifier transistor is turned ON twice to generate a circulation current at the primary side winding, and after the synchronous rectifier transistor is turned OFF, the power transistor is turned ON for zero voltage switching. A synchronous signal coupled between the primary side and the secondary side is employed to synchronize the power transistor and the synchronous transistor. The synchronous signal also triggers an SR-ZVS pulse to turn ON the synchronous rectifier transistor for achieving the zero voltage switching when the power transistor is turned ON.

Claim (Index 14):
The ZVS control circuit as  claim 10 , wherein the SR-ZVS pulse controls the synchronous rectifier transistor to be ON for the predetermined ZVS time period when a voltage of a drain terminal of the synchronous rectifier transistor is lower than a low-voltage threshold.

Metadata:
- Claim Count in Document: 34.0
- Percentile: 97.0
- Lexical Diversity: 2.27586
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15971629', '15989025', '15334170', '15334173', '13956298']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8525133692573309
- 35 USC 102 Novelty (BERT): 0.516371759396321
- Combined Prediction Score: 0.81889920827123
- Mean Citation Score: 304.663114
- Max Citation Score: 312.0288700000001
- Similarity Product: 207.92229956354268

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