PATENT CLAIM ANALYSIS

Application Number: 16243309
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-08
Patent Classification: ["363", "021160"]

Abstract:
A power controller provides open-circuit protection for a power supply when an open circuit occurs between a ground end of an auxiliary winding and an input ground. The power controller provides a PWM signal to determine an ON time and an OFF time of a power switch connected in series between an input voltage and the input ground. A deviation detector in the power controller detects a winding voltage at a floating end of the auxiliary winding during the ON time, and asserts an open protection signal when a variation of the winding voltage during the ON time fits a first predetermined condition, so as to keep the power switch turned OFF and provide the open-circuit protection.

Claim (Index 4):
The power controller as claimed in  claim 1 , wherein a feedback voltage is at the feedback node, and the deviation detector comprises:\n a clamping circuit for providing a feedback current during the ON time to clamp the feedback voltage not less than a predetermined voltage; a sampler for sampling the feedback current at a predetermined time point within the ON time to accordingly hold a register current representing the feedback current at the predetermined time point; and a comparator for comparing the register current and the feedback current during the ON time, and asserting the open protection signal if the feedback current is less than the register current during the ON time.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 99.0
- Lexical Diversity: 2.21818
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15692562', '15949118', '12911448', '15982965', '13798148']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7958040539916756
- 35 USC 102 Novelty (BERT): 0.4803792177408155
- Combined Prediction Score: 0.7642615703665896
- Mean Citation Score: 187.209482
- Max Citation Score: 198.63899
- Similarity Product: 157.41451259639143

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test