PATENT CLAIM ANALYSIS

Application Number: 16073862
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-02
Patent Classification: ["315", "201000"]

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 1):
An AC/DC PFC converter, comprising:\n an AC input; a rectifier; a half bridge inverter comprising a first switch and a second switch, wherein an output is defined from a node between the first and second switches; a self-oscillating LLC circuit coupled to the output, the LLC circuit being arranged to provide an electrical feedback parameter; and a control circuit for generating a gate drive signal for controlling the switching of the first and second switches in dependence on the electrical feedback parameter, wherein a high gate drive signal turns on the first switch and turns off the second switch and a low gate drive signal turns off the first switch and turns on the second switch, wherein the control circuit is for determining a first time duration corresponding to an on-time of the first switch and for determining a second time duration corresponding to an on-time of the second switch, the first time duration and the second time duration together defining a duty cycle of the second switch, the duty cycle of the second switch having a defined value, and wherein the control circuit further comprises an integrator for: integrating a first constant value until the control circuit detects that the electrical feedback parameter reaches a threshold value defining the first time duration; and subsequently integrating a second constant value of opposite sign to the first constant value defining the second time duration.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 95.0
- Lexical Diversity: 1.38889
- Patent Class: 315.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16073361', '16075778', '16075882', '16078871', '16083809']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7449926228631912
- 35 USC 102 Novelty (BERT): 0.5884051843025271
- Combined Prediction Score: 0.7293338790071249
- Mean Citation Score: 433.2101080000001
- Max Citation Score: 480.49368
- Similarity Product: 451.4428167186642

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

Dataset: test