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 4):
The switch mode DC-AC converter driven oscillation system in  claim 1  wherein the VCSC, further comprising:\n a switch mode capacitor, a ZVS detection module and a mono-stable flip flop; \n wherein:\n the switch mode capacitor comprises a capacitor and a switch in series or parallel; \n the switch is turned on when a resonant voltage across the capacitor is zero; \n the switch is turned off when the resonant voltage across the capacitor is not zero; \n an average equivalent capacitance of the switch mode capacitor is controlled by adjusting a conduction period of the switch or the capacitor; \n an output pulse signal of the mono-stable flip flop is used as a gate driving signal of the switch; \n the conduction period of the switch or the capacitor is controlled by an output pulse width of the output pulse signal of the mono-stable flip flop; \n the output pulse width of the mono-stable flip flop is controlled by a voltage; \n the ZVS detection module detects the resonant voltage across the capacitor and outputs a signal representing zero voltage crossing (ZVC) points of the resonant voltage across the capacitor; \n an output signal from the ZVS detection module is used as a triggering signal for the mono-stable flip flop; \n the switch of the switch mode capacitor is turned on by a leading edge of an output signal of the mono-stable flip flop; \n as the triggering signal is from the ZVS detection module representing the ZVC points of the resonant voltage across the capacitor, the switch is turned on when the resonant voltage across the capacitor is zero.

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): 0.7834802653028791
- 35 USC 102 Novelty (BERT): 0.4899541819491608
- Combined Prediction Score: 0.7541276569675072
- Mean Citation Score: 212.727028
- Max Citation Score: 225.76561
- Similarity Product: 172.8794890016043

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

Dataset: test