PATENT CLAIM ANALYSIS

Application Number: 16075882
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["315", "20000R"]

Abstract:
Various improvements are provided to resonant DC/DC and AC/DC converter circuit. The improvements are of particular interest for LLC circuits. Some examples relate to self-oscillating circuit and others relate to converter circuits with frequency control, for example for power factor correction, driven by an oscillator.

Claim (Index 10):
An AC/DC PFC conversion method, comprising:\n rectifying an AC input; operating a half bridge inverter comprising a first switch and a second switch using a gate drive signal and providing an output from a node between the switches, wherein a high gate drive signal turns on one switch and turns off the other and a low gate drive signal turns off the one switch and turns on the other switch; providing a voltage across a capacitor of an LLC circuit as an electrical feedback parameter which is representative of the input current; controlling the switching of the first switch and the second switch in dependence on the electrical feedback parameter, by:\n setting a threshold level for the electrical feedback parameter in an outer control loop in dependence on the converter output voltage or current and the rectified input voltage without measurement of the input current; and \n comparing the electrical feedback parameter with the threshold in an inner control loop to derive the gate drive signal.

Metadata:
- Claim Count in Document: 28.0
- Percentile: 96.0
- Lexical Diversity: 1.38889
- Patent Class: 315.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16075778', '16073361', '16073862', '16078871', '16087014']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7792362909305676
- 35 USC 102 Novelty (BERT): 0.577855870478906
- Combined Prediction Score: 0.7590982488854014
- Mean Citation Score: 432.274318
- Max Citation Score: 470.4678
- Similarity Product: 446.89025516195295

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test