PATENT CLAIM ANALYSIS

Application Number: 15918218
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["323", "268000"]

Abstract:
A comparator circuit includes a first comparator, a second comparator, and a logic portion. The logic portion adjust a variable reference voltage input to the second comparator to become close to a reference voltage input to the first comparator, during a period from a time point when reverse current of current flowing in a coil disposed in a switching power supply device is detected in a state where a first comparison signal is output as a comparison signal while the first comparator and the second comparator are operated, until a first predetermined period of time elapses in a state where switching operation of the switching power supply device is stopped (excluding a period from a time point when the reverse current is detected until a second predetermined period of time shorter than the first predetermined period of time elapses).

Claim (Index 28):
A power supply control IC comprising integration of:\n a ripple injection circuit arranged to superimpose a ripple voltage simulating coil current to an output voltage or a divided voltage thereof so as to generate a feedback voltage; a reference voltage generating circuit arranged to generate a predetermined reference voltage; a main comparator arranged to compare the feedback voltage with the reference voltage so as to generate a comparison signal; a one-shot pulse generating circuit arranged to generate a one-shot pulse in a set signal in response to the comparison signal; an RS flip-flop arranged to set an output signal to a first logical level in response to the set signal and to reset the output signal to a second logical level in response to a reset signal; an on-time setting circuit arranged to generate a one-shot pulse in the reset signal at a time point when a predetermined on-time elapses after the output signal is set to the first logical level; a gate driver circuit arranged to generate drive signals for an output transistor and a synchronous rectification transistor in response to the output signal; and a reverse current detecting circuit arranged to detect reverse current of the coil current so as to forcibly turn off the synchronous rectification transistor, wherein the power supply control IC includes the comparator circuit according to  claim 18  as the main comparator.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 90.0
- Lexical Diversity: 2.45
- Patent Class: 323.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15459100', '15094245', '14804795', '14930773', '14059647']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7158642283235834
- 35 USC 102 Novelty (BERT): 0.538032361666787
- Combined Prediction Score: 0.6980810416579039
- Mean Citation Score: 294.1937220000001
- Max Citation Score: 392.3382
- Similarity Product: 387.6851106147768

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