PATENT CLAIM ANALYSIS

Application Number: 15898691
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["323", "282000"]

Abstract:
A switching power supply circuit, which keeps an output voltage constant highly accurately by a buck-boost action, is provided. The switching power supply circuit comprises: a switching circuit formed by combining four switching elements with a coil in the shape of H; a coil current emulation circuit for generating an output voltage VC similar to a coil current; and a control circuit which, based on a feedback voltage representing an output voltage VO of the switching circuit, and the output voltage VC, performs on-off control of the switching circuit. The coil current emulation circuit has a CR integration circuit to generate the output voltage VC similar to the coil current. One of three voltages is applied to one terminal of the CR integration circuit, while a voltage proportional to the output voltage VO is applied to the other terminal of the CR integration circuit. The three voltages are a voltage proportional to an input voltage VIN, a ground voltage, and a voltage proportional to the sum of the input voltage VIN and the output voltage VO.

Claim (Index 5):
The switching power supply circuit according to  claim 3 , wherein\n the peak detection circuit comprises: a summing circuit for adding the output voltage similar to the coil current to the error voltage to generate an addition output voltage, and a peak detecting comparison circuit for comparing the addition output voltage with the reference voltage to detect the peak.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 88.0
- Lexical Diversity: 2.74286
- Patent Class: 323.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14561066', '12640236', '14557133', '12674349', '13280471']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7748396706911708
- 35 USC 102 Novelty (BERT): 0.5005363707107403
- Combined Prediction Score: 0.7474093406931277
- Mean Citation Score: 267.556542
- Max Citation Score: 274.86252
- Similarity Product: 208.21214142617228

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