PATENT CLAIM ANALYSIS

Application Number: 16023565
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-01
Patent Classification: ["363", "021160"]

Abstract:
A flyback power converter includes a transformer having a primary winding for receiving an input power, a secondary winding for generating an output power, and an auxiliary winding for generating a supply voltage, a primary side switch coupled to the primary winding, a high voltage start-up switch coupled to the input voltage and the controller supply voltage, and a primary side controller powered by the controller supply voltage. The primary side controller includes a multi-function pin coupled to a control terminal of the high voltage start-up switch, a high voltage start-up circuit for controlling the high voltage start-up switch to be ON through the multi-function pin when the controller supply voltage is lower than a threshold, and a protection control circuit which is coupled to an protection sensing signal through the multi-function pin; the protection control circuit operates the flyback power converter according to the protection sensing signal.

Claim (Index 1):
A flyback power converter circuit, comprising:\n a transformer, having a primary side winding for receiving an input voltage; a secondary side winding for generating an output voltage; and an auxiliary winding for generating an auxiliary voltage and providing a controller supply voltage; a primary side switch, coupled to the primary side winding and configured to operably control the primary side winding; a high voltage (HV) start-up switch, wherein a current inflow terminal of the HV start-up switch is coupled to an input voltage related signal, and a current outflow terminal of the HV start-up switch is coupled to the controller supply voltage, wherein the input voltage related signal relates to the input voltage; a protection sensing circuit, configured to operably sense a system temperature or an input signal to generate a protection sensing signal; and a primary side controller circuit, which is located at a primary side of the transformer and powered by the controller supply voltage, and is configured to operably generate a switch control signal to control the primary side switch; the primary side controller circuit including:\n a multi-function pin, which is coupled to a control terminal of the HV start-up switch and is coupled to the protection control circuit; \n a high voltage (HV) start-up circuit, coupled to the control terminal of the HV start-up switch through the multi-function pin, wherein when the controller supply voltage does not exceed a start-up voltage threshold, the HV start-up circuit controls the HV start-up switch to be ON, and when the controller supply voltage exceeds the start-up voltage threshold, the HV start-up circuit controls the HV start-up switch to be OFF; and \n a protection control circuit, configured to operably receive the protection sensing signal through the multi-function pin, wherein when the controller supply voltage exceeds the start-up voltage threshold, the protection control circuit performs a protection operation according to whether the protection sensing signal exceeds a protection threshold.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 94.0
- Lexical Diversity: 2.82143
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16000066', '15147182', '15892724', '15963058', '15878483']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8222885600956192
- 35 USC 102 Novelty (BERT): 0.5726112240935184
- Combined Prediction Score: 0.7973208264954093
- Mean Citation Score: 310.436556
- Max Citation Score: 460.9455
- Similarity Product: 453.9353282160759

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