PATENT CLAIM ANALYSIS

Application Number: 16132367
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-04
Patent Classification: ["363", "021140"]

Abstract:
A flyback power converter includes: a transformer, a power switch, a switch control unit, a synchronous rectifier switch and a secondary side control circuit. The secondary side control circuit includes: a switch signal generation circuit and a first power conversion circuit. The secondary side control circuit is coupled to the synchronous rectifier switch and the secondary winding of the transformer. The switch signal generation circuit generates the synchronous rectifier switch signal selectively according to a first power or a second power, to control the synchronous rectifier switch. The first power is related to the output voltage. The first power conversion circuit generates the second power according to a secondary phase signal on a phase node between the secondary winding of the transformer and the synchronous rectifier switch.

Claim (Index 14):
A secondary side control circuit of the flyback power converter, the flyback power converter being configured to operably convert an input voltage to an output voltage at an output terminal of the flyback power converter, wherein the flyback power converter includes: a transformer, including a primary winding coupled to the input voltage and a secondary winding coupled to the output voltage; a power switch coupled to the primary winding, wherein the power switch is configured to be turned ON or OFF according to an operation signal, to control the primary winding so that the input voltage is converted to the output voltage; a switch control unit coupled to the power switch, wherein the switch control unit is configured to operably generate the operation signal according to a feedback signal related to the output voltage; a synchronous rectifier switch, which is coupled in serial to the secondary winding, wherein the synchronous rectifier switch and the secondary winding are coupled between the output terminal and a ground voltage level, and the synchronous rectifier switch and the secondary winding are coupled to each other through a secondary phase node, wherein the synchronous rectifier switch is configured to be turned ON or OFF according to a synchronous rectifier switch signal, so as to provide a synchronous rectification function; the secondary side control circuit being coupled to the synchronous rectifier switch and the secondary winding of the transformer, the secondary side control circuit comprising:\n a switch signal generation circuit, which is configured to operably generate the synchronous rectifier switch signal selectively according to a first power or a second power, to control the synchronous rectifier switch, wherein the first power is related to the output voltage and the second power is not the first power; and a first power conversion circuit, which is configured to operably convert a secondary phase signal, to generate the second power, wherein the secondary phase signal is a voltage signal on the secondary phase node.

Metadata:
- Claim Count in Document: 55.0
- Percentile: 97.0
- Lexical Diversity: 3.30952
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15809595', '15865212', '15147182', '10911558', '15144610']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8052057734529469
- 35 USC 102 Novelty (BERT): 0.5050521400434315
- Combined Prediction Score: 0.7751904101119953
- Mean Citation Score: 286.209454
- Max Citation Score: 302.84225
- Similarity Product: 281.5342317038923

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