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 4):
The switching power supply circuit of  claim 1 , wherein the secondary side control circuit further comprises:\n a threshold selection circuit, configured to receive the first threshold value and the second threshold value, and configured to provide a turn-on threshold value, wherein when an on-time period of the rectifier switch is within the predetermined duration, the threshold selection circuit is configured to provide the turn-on threshold value according to the first threshold value, and after the on-time period of the rectifier switch reaches the predetermined duration, the threshold selection circuit is configured to provide the turn-on threshold value according to the second threshold value; and a gate logic circuit, configured to provide the driving signal and control a turn-on moment of the rectifier switch by the driving signal based on a compare result of the drain-source voltage across the rectifier switch and the first threshold value, and configured to adjust the driving signal based on a difference between the drain-source voltage across the rectifier switch and the turn-on threshold value.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 98.0
- Lexical Diversity: 2.40385
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13478575', '13966248', '15061192', '14290621', '16022645']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8412496940700558
- 35 USC 102 Novelty (BERT): 0.4944209224479848
- Combined Prediction Score: 0.8065668169078487
- Mean Citation Score: 256.14009000000004
- Max Citation Score: 265.99088
- Similarity Product: 214.102493643198

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