PATENT CLAIM ANALYSIS

Application Number: 16172082
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["363", "021020"]

Abstract:
A resonant power converter and a frequency tracking method for a resonant power converter are disclosed to determine a resonant status of the resonant power converter by sampling a secondary current, thereby controlling frequency of a drive signal. Therefore, the frequency of the drive signal tracks resonant frequency of the resonant power converter. The resonant power converter includes an inverter branch, which connected to the inverter branch, a transformer connected to the resonant branch, and a rectification and filtering branch connected to the transformer. A primary side of the transformer is connected to the resonant branch, and a secondary side of the transformer is connected to the rectification and filtering branch. A detection branch is connected to both the secondary side of the transformer and the rectification and filtering branch.

Claim (Index 1):
A resonant power converter, comprising:\n an inverter circuit, a resonant circuit connected to the inverter circuit, a transformer connected to the resonant circuit, a rectification and filtering circuit connected to the transformer, a detection circuit, a determining circuit, and a control circuit, wherein: a first side of the transformer is connected to the resonant circuit, a second side of the transformer is connected to the rectification and filtering circuit, the detection circuit is connected to both the second side of the transformer and the rectification and filtering circuit, the determining circuit is connected to the detection circuit, and the control circuit is connected to both the determining circuit and the inverter circuit, the detection circuit is configured to: obtain a secondary current of the transformer, generate, according to the secondary current, a pulse signal corresponding to the secondary current, and send the pulse signal corresponding to the secondary current to the determining circuit, the control circuit is configured to generate a drive signal and send the drive signal to the inverter circuit and to the determining circuit, wherein the drive signal is used to drive the inverter circuit, the determining circuit is configured to: receive the pulse signal that is corresponding to the secondary current and sent by the detection circuit and receive the drive signal that is sent by the control circuit, generate first information based on the pulse signal and the drive signal, and send the first information to the control circuit, wherein the first information is used to indicate a resonant status of the resonant power converter, and the control circuit is further configured to: receive the first information sent by the determining circuit, and control frequency of the drive signal according to the first information.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 97.0
- Lexical Diversity: 3.20455
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12250146', '13267186', '11809465', '14133044', '11720857']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8381134570900003
- 35 USC 102 Novelty (BERT): 0.502590937686252
- Combined Prediction Score: 0.8045612051496254
- Mean Citation Score: 285.61574
- Max Citation Score: 301.6645
- Similarity Product: 263.6385763583779

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