PATENT CLAIM ANALYSIS

Application Number: 16118480
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["363", "021160"]

Abstract:
Embodiments of the present application provide a control circuit and a control method of a flyback converter, the control circuit comprises: a first sampling module, a second sampling module, and a control module; the first sampling module is coupled to the control module and the flyback converter, and outputs a first voltage signal to the control module; the second sampling module is coupled to the control module and the flyback converter, and outputs a second voltage signal to the control module; where the first voltage signal reflects an input voltage of the flyback converter, the second voltage signal reflects an output voltage of the flyback converter; the control module outputs a control signal according to the first voltage signal and the second voltage signal, and the control signal reflects a turn-on time of the switch in the flyback converter.

Claim (Index 17):
The control method according to  claim 16 , wherein,\n the number of turns of the auxiliary winding is the same as the number of turns of a secondary side winding of the flyback converter, and of a turn-on voltage drop of the diode of the primary side auxiliary circuit is the same as a turn-on voltage drop of a secondary diode of the flyback converter; the turn-on time is calculated as follows: t on = 2 \ue89e t s \ue8a0 ( R \ue89e \ue89e 3 + R \ue89e \ue89e 4 R \ue89e \ue89e 4 \ue89e V O_Sense + V F ) \ue89e N S N A \ue89e L P \ue89e I out * R \ue89e \ue89e 1 + R \ue89e \ue89e 2 R \ue89e \ue89e 2 \ue89e V IN_Sense wherein t on  is the turn-on time, R 1  is a resistance value of the first resistor, R 2  is a resistance value of the second resistor, R 3  is a resistance value of the third resistor, R 4  is a resistance value of the fourth resistor, V IN _ Sense  is the first voltage signal, V O _ Sense  is the second voltage signal, N S  is the number of turns of the secondary side winding of the flyback converter, N A  is the number of turns of the auxiliary winding, L P  is an inductance of a primary side winding of the flyback converter, I* out  is an expected value of an output current of the flyback converter, V F  is the turn-on voltage drop of the secondary diode of the flyback converter, t s  is an switching cycle of the switch.

Metadata:
- Claim Count in Document: 25.0
- Percentile: 96.0
- Lexical Diversity: 4.0
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15707067', '14697438', '15944812', '13525288', '12288927']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8482264075548808
- 35 USC 102 Novelty (BERT): 0.5047331141358139
- Combined Prediction Score: 0.8138770782129741
- Mean Citation Score: 280.30362
- Max Citation Score: 289.36667
- Similarity Product: 221.4240540043444

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