PATENT CLAIM ANALYSIS

Application Number: 16000066
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-01
Patent Classification: ["363", "021120"]

Abstract:
A flyback power converter includes a transformer having a primary winding receiving an input power, a secondary winding generating an output power, and an auxiliary winding generating an auxiliary voltage and providing a supply voltage, a primary side switch controlling the primary winding, a start-up switch coupled to the input voltage and the supply voltage, and a primary side controller supplied by the supply voltage. The primary side controller includes a shared pin coupled to a control terminal of the start-up switch, a start-up circuit for controlling the start-up switch to be conductive through the shared pin when the supply voltage is lower than a threshold, and a signal processing circuit receiving an auxiliary signal related to the auxiliary voltage through the shared pin and operating the flyback power converter accordingly, wherein the shared pin, besides providing a function of controlling the start-up switch, provides another function.

Claim (Index 17):
A primary side controller circuit, configured to operably control a flyback power converter circuit, wherein the flyback power converter circuit includes: a transformer, which includes 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 and configured to control the primary side winding; and 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; the primary side controller circuit being located at a primary side of the transformer and powered by the controller supply voltage, and the primary side controller circuit being configured to operably generate a switch control signal to control the primary side switch; the primary side controller circuit comprising:\n a multi-function pin, which is coupled to a control terminal of the HV start-up switch and is coupled to an auxiliary sensing signal, wherein the auxiliary sensing signal relates to the auxiliary voltage; 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 a signal processing circuit, configured to operably receive the auxiliary sensing signal through the multi-function pin, wherein when the controller supply voltage exceeds the start-up voltage threshold, the signal processing circuit operates the flyback power converter circuit according to the auxiliary sensing signal.

Metadata:
- Claim Count in Document: 55.0
- Percentile: 94.0
- Lexical Diversity: 2.69492
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15147182', '15892724', '14707730', '14697438', '15878483']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8396276242608892
- 35 USC 102 Novelty (BERT): 0.5094372724750714
- Combined Prediction Score: 0.8066085890823075
- Mean Citation Score: 309.88707
- Max Citation Score: 324.1896
- Similarity Product: 282.20920079641337

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