PATENT CLAIM ANALYSIS

Application Number: 15944565
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["363", "021030"]

Abstract:
An apparatus is disclosed for improving zero voltage switching (“ZVS”) of a converter circuit such as an active clamp flyback converter. The apparatus includes a first timing circuit acting as the T D(L-H)  optimizer, which uses the zero-crossing of the auxiliary winding voltage directly to adaptively vary the dead time. A second timing circuit acting as the T D(H-L)  optimizer adaptively varies the dead time with a simple piece-wide linear function as an approximation of the complex optimal equation. A third timing circuit acting as the T DM  optimizer contains a charge-pump circuit that adaptively adjusts the ON time of the clamp switch based on the zero-voltage detection of switching node voltage and feed-forwards the input voltage signal to enhance tuning speed so that the correct amount of negative magnetizing current is generated to improve zero voltage switching.

Claim (Index 12):
The apparatus of  claim 11 , wherein the at least one first sensing circuit comprises an input voltage sensing circuit configured to determine an input voltage of the flyback converter circuit based on the auxiliary voltage.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 91.0
- Lexical Diversity: 1.73864
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15334170', '15334173', '15715818', '15662301', '12417780']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8289394737031851
- 35 USC 102 Novelty (BERT): 0.4929314102081852
- Combined Prediction Score: 0.7953386673536851
- Mean Citation Score: 213.516146
- Max Citation Score: 234.92357
- Similarity Product: 169.66700566356718

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