PATENT CLAIM ANALYSIS

Application Number: 15933826
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["323", "271000"]

Abstract:
A switching power supply detects a short circuit to ground, for example, by comparing a soft-start voltage Vss with a feedback voltage Vfb while securing an offset voltage ΔV. The switching power supply includes, for example, a short-circuit-to-ground detection circuit which detects a short circuit to ground at a monitoring target terminal. When a short circuit to ground occurs for the first time, the output of the short-circuit-to-ground detection circuit is masked for a first period. When a short circuit to ground occurs for the second or any succeeding time, the output of the short-circuit-to-ground detection circuit is masked for a second period shorter than the first period.

Claim (Index 1):
A switching power supply comprising:\n a switching unit arranged to turn on and off an output transistor and a synchronous rectification semiconductor element to drive an inductor so that an output voltage is generated from an input voltage; an error amplifier arranged to generate an error voltage corresponding to a difference between a predetermined first reference voltage and the output voltage or a feedback voltage corresponding to the output voltage; a soft-start circuit arranged to generate a soft-start voltage; a pulse width modulation (PWM) comparator arranged to compare the error voltage with the soft-start voltage so as to generate a pulse width modulation signal; a driving circuit arranged to receive an input of the pulse width modulation signal so as to generate a drive signal for the switching unit; and an offset comparator arranged to compare the soft-start voltage with the feedback voltage, with a predetermined offset voltage, wherein when Vss\u2265Vfb+\u0394V holds, where Vss represents the soft-start voltage, Vfb represents the feedback voltage, and \u0394V represents the offset voltage, then the output transistor is turned off via the driving circuit based on an offset detection signal output from the offset comparator.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 2.26923
- Patent Class: 323.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15259154', '15189583', '11811834', '14804795', '12932617']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7054130758882041
- 35 USC 102 Novelty (BERT): 0.4905378993997528
- Combined Prediction Score: 0.6839255582393591
- Mean Citation Score: 244.394344
- Max Citation Score: 269.63345
- Similarity Product: 245.78878704987167

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

Dataset: test