PATENT CLAIM ANALYSIS

Application Number: 15888027
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["315", "077000"]

Abstract:
A converter controller controls a switching converter. A current detection circuit generates a current detection signal V CS  that corresponds to a coil current I L  of the switching converter. An error amplifier amplifies the difference between the current detection signal V CS  and an analog signal V ADIM  that indicates a current to be supplied to a semiconductor light source, so as to generate an error signal V ERR . A hysteresis comparator compares the current detection signal V CS  with an upper threshold signal V THH  and a lower threshold signal V THL  determined according to the error signal V ERR , and generates a control pulse S CNT  that corresponds to a comparison result. A driver drives a switching transistor according to the control pulse S CNT .

Claim (Index 18):
The lighting circuit according to  claim 16 , wherein the converter controller comprises:\n a first error amplifier structured to amplify a difference between a third current detection signal that corresponds to a DC component of a coil current of the switching converter or otherwise a DC component of an output current thereof and a first analog signal, so as to generate a first error signal; an oscillator structured to generate a periodic signal having any one from among a triangle wave, a sawtooth wave, and a ramp wave; a hysteresis voltage source structured to generate an upper threshold signal and a lower threshold signal determined according to a second analog signal; a comparator unit structured such that: (i) in the hysteresis control mode, the comparator unit compares a fourth current detection signal that corresponds to the coil current with the upper threshold signal and the lower threshold signal, and generates a control pulse that corresponds to a comparison result; and such that (ii) in the error amplifier control mode, the comparator unit compares the first error signal with the periodic signal, and generates a control pulse that corresponds to a comparison result; and a driver structured to drive a switching transistor of the switching converter according to the control pulse.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 88.0
- Lexical Diversity: 2.14286
- Patent Class: 315.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15686520', '14874005', '14855439', '15887802', '15784147']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7647592287072073
- 35 USC 102 Novelty (BERT): 0.5273277276219831
- Combined Prediction Score: 0.7410160785986849
- Mean Citation Score: 305.461404
- Max Citation Score: 338.69284
- Similarity Product: 242.1061411041617

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