PATENT CLAIM ANALYSIS

Application Number: 15925930
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["363", "021170"]

Abstract:
A device and method for controlling a power supply. The method includes: a voltage signal in a primary winding is delayed, and the delayed voltage signal is sampled and held after a time when a rectifying diode stops conducting a current, then the sampled and held signal is used as a feedback signal of the power supply. Therefore, only one sampling and holding circuit is needed, the area of the circuit can be reduced and the cost of the integrated circuit can be decreased, meanwhile regulation characteristics are not deteriorated.

Claim (Index 1):
A device for controlling a power supply; the power supply comprising a switching element, a transformer with a primary winding and a secondary winding, and a rectifying diode connected to the secondary winding;\n wherein the device comprises: a smooth filtering circuit configured to filter at least one of a ringing voltage and a surging voltage of a voltage signal in the primary winding and pass a voltage greater than a reference voltage and to generate a filtered voltage signal; a snubber circuit connected to the primary winding, wherein the snubber circuit is configured to filter at least one of the ringing voltage and the surging voltage of the voltage signal in the primary winding; a delay circuit configured to delay the filtered voltage signal from the smooth filtering circuit and generate a delayed voltage signal; and a sampling and holding circuit configured to sample and hold the delayed voltage signal after a time when the rectifying diode stops conducting a current, and to output a feedback signal used for controlling the switching element.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 90.0
- Lexical Diversity: 1.73684
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11700924', '14601791', '13478575', '11367337', '11545040']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.814393563331103
- 35 USC 102 Novelty (BERT): 0.4782350943427204
- Combined Prediction Score: 0.7807777164322648
- Mean Citation Score: 217.562722
- Max Citation Score: 229.75557
- Similarity Product: 188.5408655987352

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