PATENT CLAIM ANALYSIS

Application Number: 16207942
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["363", "021140"]

Abstract:
A flyback converter includes a primary-side switch connected to a primary-side winding of a transformer and a secondary-side switch connected to a secondary-side winding of the transformer. The flyback converter is operated by controlling the primary-side switch to store energy in the transformer during ON periods of the primary-side switch, switching on the secondary-side switch synchronously with switching off the primary-side switch to transfer energy from the transformer to the secondary side, determining an off time of the secondary-side switch based on a reflected input voltage measured at the secondary-side winding when the primary-side switch is on, accounting for a settling time of the reflected input voltage when determining the off time of the secondary-side switch so that the settling time has little or no effect on the off time, and switching off the secondary-side switch based on the off time.

Claim (Index 5):
A flyback converter, comprising:\n a primary-side switch connected to a primary-side winding of a transformer; a secondary-side switch connected to a secondary-side winding of the transformer; a primary-side controller operable to control the primary-side switch to store energy in the transformer during ON periods of the primary-side switch; and a secondary-side controller operable to:\n switch on the secondary-side switch synchronously with switching off the primary-side switch to transfer energy from the transformer to the secondary side; \n determine an off time of the secondary-side switch based on a reflected input voltage measured at the secondary-side winding when the primary-side switch is on; \n account for a settling time of the reflected input voltage when determining the off time of the secondary-side switch, so that the settling time has little or no effect on the off time; \n switch off the secondary-side switch based on the off time; \n sample values of the reflected input voltage during a present switching cycle of the secondary-side switch and hold one of the values sampled at steady-state of the reflected input voltage; and \n use the value of the reflected input voltage sampled at steady-state during the present switching cycle of the secondary-side switch in determining the off time of the secondary-side switch for the present switching cycle.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 98.0
- Lexical Diversity: 2.57895
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15627579', '14334166', '15971629', '15334170', '15334173']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7910181261197788
- 35 USC 102 Novelty (BERT): 0.5934947526717774
- Combined Prediction Score: 0.7712657887749786
- Mean Citation Score: 314.876842
- Max Citation Score: 490.33896
- Similarity Product: 482.52263031440737

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