PATENT CLAIM ANALYSIS

Application Number: 15876054
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["363", "017000"]

Abstract:
A switching power converter is provided that adaptively changes the on-time period for an auxiliary switch transistor to locate a boundary between sufficient and insufficient energy.

Claim (Index 1):
A controller for a switching power converter, comprising:\n a valley-mode detector configured to detect valleys in a drain voltage for a power switch transistor, each valley having a positive voltage, wherein the power switch transistor is configured to conduct a positive current through an inductive storage element while the power switch transistor is on; a zero-crossing detector configured to detect zero-crossings in the drain voltage; and an adaptive on-time control circuit configured to adjust an on-time period for an auxiliary switch transistor between relatively-short periods that produce only valleys in the drain voltage and relatively-long periods that produce only zero-crossings in the drain voltage to determine an optimal on-time period at a boundary between the relatively-long periods and the relatively-short periods, wherein the auxiliary switch transistor is configured to force a negative current through the inductive storage element when the auxiliary switch transistor is switched off.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 86.0
- Lexical Diversity: 1.0
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15825042', '15414593', '13470172', '14584859', '13486625']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8110142926666596
- 35 USC 102 Novelty (BERT): 0.4793135707672402
- Combined Prediction Score: 0.7778442204767176
- Mean Citation Score: 221.276818
- Max Citation Score: 240.80212000000003
- Similarity Product: 203.8991714563799

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

Dataset: test