PATENT CLAIM ANALYSIS

Application Number: 16195712
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-05
Patent Classification: ["363", "021140"]

Abstract:
A switching power supply circuit with synchronous rectifier has an energy storage component, a rectifier switch coupled to a secondary side of the energy storage component, and a secondary side control circuit. The secondary side control circuit provides a driving signal to control the rectifier switch. When the drain-source voltage across the rectifier switch is less than a first threshold value, the secondary side control circuit controls the driving signal to be a maximum voltage to control the rectifier switch being fully on for a predetermined duration. After a predetermined duration, the secondary side control circuit adjusts the voltage of the driving signal based on the drain-source voltage across the rectifier switch and a second threshold value.

Claim (Index 10):
A control method for a switching power supply circuit with synchronous rectification, wherein the switching power supply circuit comprises an energy storage component, a primary switch coupled to a primary side of the energy storage component, and a rectifier switch coupled to a secondary side of the energy storage component, and the switching power supply circuit is configured to provide an output voltage at the secondary side of the energy storage component, the control method comprising:\n providing a driving signal according to a drain-source voltage across the rectifier switch to control the rectifier switch; turning on the rectifier switch when the drain-source voltage across the rectifier switch is less than a first threshold value; controlling the driving signal to be a maximum voltage for a predetermined duration after the rectifier switch is turned on; adjusting the driving signal according to the drain-source voltage across the rectifier switch and a second threshold value after an on-time period of the rectifier switch reaches the predetermined duration; and turning off the rectifier switch when the drain-source voltage across the rectifier switch is greater than a turn-off threshold value, wherein the turn-off threshold value is greater than the second threshold value.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 98.0
- Lexical Diversity: 2.40385
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13478575', '13966248', '15061192', '14290621', '16022645']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8251467008085918
- 35 USC 102 Novelty (BERT): 0.4885412238950345
- Combined Prediction Score: 0.7914861531172361
- Mean Citation Score: 256.14009000000004
- Max Citation Score: 265.99088
- Similarity Product: 225.68594054849623

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