PATENT CLAIM ANALYSIS

Application Number: 16282735
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["363", "021010"]

Abstract:
A switching power supply circuit includes an intermittent oscillation control circuit, which performs intermittent oscillation control that repeats a cycle including an oscillation time period and a stop time period according to a feedback signal so that output voltage or current becomes constant, compares an intermittent oscillation period that is a sum of the oscillation time period and the stop time period with a preset target period, sets the oscillation time period of current cycle to a length obtained by extending the oscillation time period of previous cycle by first predetermined time when the intermittent oscillation period is shorter than the target period, and sets the oscillation time period of current cycle to a length obtained by subtracting second predetermined time from the oscillation time period of previous cycle when the intermittent oscillation period is longer than the target period, in each cycle of intermittent oscillation control.

Claim (Index 1):
A switching power supply device, comprising:\n an energy conversion circuit to which an input voltage is input, the input voltage being a direct current input voltage; a rectifying and smoothing circuit that rectifies and smooths a voltage output from the energy conversion circuit, and outputs an output voltage to a load; a switching element connected to the energy conversion circuit, the switching element switching the input voltage; a switching control circuit that controls switching operation of the switching element; and an output state detection circuit that outputs a feedback signal in accordance with one of the output voltage and an output current flowing through the load, wherein: the switching control circuit includes an intermittent oscillation control circuit that performs intermittent oscillation control in which a cycle including an oscillation time period in which the switching element performs switching operation and a stop time period in which the switching operation stops is repeated in accordance with the feedback signal so that one of the output voltage and the output current becomes constant; and the intermittent oscillation control circuit compares an intermittent oscillation period that is a sum of the oscillation time period and the stop time period with a target period that is preset, sets the oscillation time period of a current cycle to a length obtained by extending the oscillation time period of a previous cycle by a first predetermined time when the intermittent oscillation period is shorter than the target period, and sets the oscillation time period of the current cycle to a length obtained by subtracting a second predetermined time from the oscillation time period of the previous cycle when the intermittent oscillation period is longer than the target period, in each cycle of the intermittent oscillation control.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 99.0
- Lexical Diversity: 2.59322
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14051167', '13696037', '12816686', '12721851', '14284897']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8376806798708538
- 35 USC 102 Novelty (BERT): 0.5167904196012952
- Combined Prediction Score: 0.805591653843898
- Mean Citation Score: 310.0069660000001
- Max Citation Score: 338.67966
- Similarity Product: 274.85502094512105

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