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 7):
The switching power supply circuit of  claim 1 , wherein the secondary side control circuit further comprises:\n a first comparison circuit, configured to receive the drain-source voltage across the rectifier switch and the first threshold value, and configured to provide a first comparison signal based on a compare result of the drain-source voltage across the rectifier switch and the first threshold value; a second comparison circuit, configured to receive the drain-source voltage across the rectifier switch and a turn-off threshold value, and configured to provide a second comparison signal based on a compare result of the drain-source voltage across the rectifier switch and the turn-off threshold value; and an amplifying circuit, configured to receive the drain-source voltage across the rectifier switch and the turn-on threshold value, wherein when an on-time period of the rectifier switch is within the predetermined duration, the amplifying circuit is configured to provide an amplified signal based on a difference between the drain-source voltage across the rectifier switch and the first threshold value, and after the on-time period of the rectifier switch reaches the predetermined duration, the amplifying circuit is configured to provide the amplified signal based on a difference between the drain-source voltage across the rectifier switch and the second threshold value; wherein the secondary side control circuit is configured to generate the driving signal according to the first comparison signal, the second comparison signal and the amplified signal.

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): 0.841990811452449
- 35 USC 102 Novelty (BERT): 0.4876473804141843
- Combined Prediction Score: 0.8065564683486226
- Mean Citation Score: 256.14009000000004
- Max Citation Score: 265.99088
- Similarity Product: 236.0044844818688

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