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 2):
The switch mode DC-AC converter driven oscillation system in  claim 1  wherein the primary side controller, further comprising:\n a PC 1  and a Low-pass Filter (LF); \n wherein:\n there are two input signals for PC 1 , one is from the ZVC or ZCC detection module and the other is the gate driving signal of the switch mode DC-AC converter; \n an output signal of PC 1  is input into the LF; \n an output voltage of the LF is input into the VCO to control its output frequency; \n the output frequency of the VCO is used directly as the gate driving signal of the switch mode DC-AC converter or the driving frequency of the system; \n PC 1  is a kind of phase comparator characterized in that no phase difference exists at locked condition, which means that the output voltage of the LF and therefore the output frequency of the VCO vary continuously until the two input signals of PC 1  are equal in both phase and frequency; \n as such, whenever the driving and innate resonant frequency of the system deviate from each other leading to the two input signals of PC 1  are not equal in phase, the output voltage of the LF and therefore the output frequency of the VCO vary continuously to change the driving frequency of the system until the driving and innate resonant frequency of the system equal to each other so that the two input signals of PC 1  become equal in both phase and frequency again meaning that the system regains its resonant and soft-switching condition.

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): 0.782433062153286
- 35 USC 102 Novelty (BERT): 0.4964255611380253
- Combined Prediction Score: 0.7538323120517599
- Mean Citation Score: 212.727028
- Max Citation Score: 225.76561
- Similarity Product: 160.00909060514093

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