PATENT CLAIM ANALYSIS

Application Number: 15911556
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-06
Patent Classification: ["323", "226000"]

Abstract:
A flyback converter with adjustable frequency curve includes a primary winding configured to receive an input voltage, a secondary winding coupled to the primary winding to generate an output DC voltage, a feedback circuit configured to receive the output DC signal and generate a feedback signal, a multi-mode control circuit, an auxiliary winding configured to provide power for operating the multi-mode control circuit, an exterior adjustable circuit connected between the auxiliary winding and the multi-mode controller for adjusting the input voltage level of the input feedthrough of the multi-mode control circuit, wherein the multi-mode control circuit configured to generate a switch control signal based on the information associated with the adjusted input signal through the input feedthrough of the multi-mode control circuit and the feedback signal, and a switching device configured to receive the switch control signal and change a current flowing through the primary winding.

Claim (Index 1):
A flyback converter with adjustable frequency curve comprising:\n a primary winding configured to receive an input voltage; a secondary winding coupled to the primary winding and connected to a rectifier circuit to generate an output DC voltage; a feedback circuit coupled to output of the rectifier circuit of the secondary winding to generate a feedback signal; a multi-mode control circuit including:\n a voltage input for providing a power to operate the multi-mode control circuit; \n a switching device current sense input for providing a current sense signal of the switching device and generating a control signal; \n a feedback signal input for providing a feedback signal; \n a comparator circuit having an input connected to the exterior adjustable circuit for detecting an input voltage and generating a control voltage; \n a quasi-resonant valley detection circuit having an input connected to the exterior adjustable circuit for performing quasi-resonant valley detection or zero crossing detection; \n a multi-mode control module configured to receive the feedback signal, the quasi-resonant valley detection signal, and the signal from the frequency-reducing curve selection circuit for generating a control signal; \n a pulse width modulation comparator configured to perform a logic operation and generate a corresponding signal by comparing the received current sense signal and feedback signal; \n a SR flip-flop configured to receive the control signal from the multi-mode control module through its set terminal and the logic operation signal through its reset terminal for generating a control signal through its output; and a gate driver configured to receive the control signal from the SR flip-flop for controlling the switching device; an auxiliary winding is configured to provide power for operating the multi-mode control circuit; an exterior adjustable circuit connected between the auxiliary winding and the multi-mode control circuit for adjusting the input voltage level of the input feedthrough of the multi-mode control circuit, wherein the multi-mode control circuit is configured to generate a switch control signal based on the information associated with the adjusted input signal through the input feedthrough of the multi-mode control circuit and the feedback signal; and a switching device connected to the primary winding and the multi-mode control circuit to receive the switch control signal and change a current flowing through the primary winding.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 90.0
- Lexical Diversity: 2.70175
- Patent Class: 323.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12973591', '15664019', '12409287', '15095365', '13433083']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7504458829419332
- 35 USC 102 Novelty (BERT): 0.501311886786909
- Combined Prediction Score: 0.7255324833264308
- Mean Citation Score: 274.12455
- Max Citation Score: 302.5781
- Similarity Product: 254.1246925481141

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