PATENT CLAIM ANALYSIS

Application Number: 16083491
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-03
Patent Classification: ["363", "013000"]

Abstract:
A switch mode DC-AC converter driven oscillation system which always works on square wave driving, soft-switching and resonant conditions supported by the following techniques is disclosed. {circle around (1)} the techniques composed of totally analog circuitry to dynamically detect the innate resonant frequency of the system through comparison between the phases of the gate driving and zero voltage or current crossing signals of the main oscillation of the system and to drive the system with the detected innate resonant frequency to realize resonant operation and soft-switching. Based on different types of PLL technologies, two of such techniques are disclosed. {circle around (2)} the technique to realize a Voltage Controlled Soft-switching Capacitor (VCSC) to compensate the innate resonant frequency or to adjust the output voltage or power of the system through its tuning/detuning effect. The disclosed techniques can be combined to realize “square wave driving, soft-switching and resonant” systems which operate in either variable or fixed frequency conditions.

Claim (Index 1):
A switch mode DC-AC converter driven oscillation system, comprising:\n a primary and a secondary side circuit; wherein:\n the primary side circuit comprises a switch mode DC-AC converter, a primary side resonant tank, a VCO, a ZVC or ZCC detection module and a primary side controller; \n the VCO generates a square wave which is used directly as a gate driving signal of the switch mode DC-AC converter without passing through any digital circuits; \n a frequency of the gate driving signal generated by the VCO is a driving frequency of the system; \n the driving frequency of the system is neither larger nor smaller than, but always equals to an innate resonant frequency of the system accurately at steady state; \n the ZVC or ZCC detection module detects zero voltage or current crossing points of a voltage or current in the primary side resonant tank, and outputs a square wave representing the detected ZVC or ZCC points, which is input into the primary side controller; \n the whole primary side circuit is of analog circuitry where there is no digital circuits of any kind; \n the secondary side circuit comprises a secondary side resonant tank, a VCSC, a PI controller, a regulation circuit and load.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 97.0
- Lexical Diversity: 1.82474
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11867349', '14328077', '15168569', '13208954', '13299020']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7824897627084763
- 35 USC 102 Novelty (BERT): 0.4960755843282128
- Combined Prediction Score: 0.7538483448704499
- Mean Citation Score: 212.727028
- Max Citation Score: 225.76561
- Similarity Product: 160.7050431289673

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