PATENT CLAIM ANALYSIS

Application Number: 16365100
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["363", "021020"]

Abstract:
This disclosure describes a flyback converter with a series-parallel mode (SPM) active clamp. The active clamp, coupled in parallel with the primary coil, may include a clamp switch, two or more snubber capacitors, and associated diodes. The active clamp may be configured to absorb and retain the leakage energy from the leakage inductance of the flyback converter. The clamp switch may be turned on selectively as the primary switch approaches one of a plurality peak values to adjust frequencies of the switching devices. With the active clamp circuit, the flyback converter may first re-capture the leakage energy in the active clamp circuit and then recover it back to the power source.

Claim (Index 17):
A power converter, comprising:\n a primary coil coupled in series with a first switch, the primary coil configured to receive an input voltage; a secondary coil electromagnetically coupled to the primary coil, the secondary configured to provide an output voltage; an active clamp circuit coupled in parallel to the primary coil, the active clamp circuit comprising a second switch coupled in series with a first capacitor and a second capacitor; and a controller coupled to the first switch and the second switch, the controller configured to:\n turn the first switch on, so as to store energy in the primary coil; \n turn the first switch off, so as to charge the first and the second capacitors in series; \n turn the second switch on when a voltage across the first switch approaches a peak value, so as to discharge the first and the second capacitors in parallel; and \n turn the second switch off when at least one of: a voltage across the first capacitor and a voltage across the second capacitor, falls to a predetermined voltage level.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 99.0
- Lexical Diversity: 1.83582
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15829253', '15042885', '15585715', '11565549', '16071807']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8156350144534252
- 35 USC 102 Novelty (BERT): 0.5170551168791342
- Combined Prediction Score: 0.7857770246959961
- Mean Citation Score: 273.862258
- Max Citation Score: 290.68698
- Similarity Product: 254.6674163266182

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