PATENT CLAIM ANALYSIS

Application Number: 16151954
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-04
Patent Classification: ["323", "282000"]

Abstract:
A switching regulator includes a switching element, a first error amplification circuit amplifying a difference between a voltage based on an output voltage and a first reference voltage and providing a first error voltage, a clamp circuit generating a second error voltage at an output node based on the first error voltage and a second reference voltage, a PFM comparison circuit comparing the second error voltage and the second reference voltage to output a comparison result, an oscillation circuit providing and stopping a clock signal according to the comparison result, and a PWM conversion circuit turning on/off the switching element based on the second error voltage and the output of the oscillation circuit. The clamp circuit clamps a lower limit value of the second error voltage to a voltage obtained by subtracting a prescribed voltage from the second reference voltage.

Claim (Index 1):
A switching regulator which generates a prescribed output voltage at an output terminal from a power supply voltage supplied to a first power supply terminal, comprising:\n an inductor having one end connected to the output terminal; a switching element connected between the first power supply terminal and the other end of the inductor; a first error amplification circuit configured to amplify a difference between a voltage based on the output voltage and a first reference voltage and output a first error voltage; a clamp circuit configured to generate a second error voltage at an output node, based on the first error voltage supplied to a first input node and a second reference voltage supplied to a second input node, the clamp circuit clamping a lower limit value of the second error voltage to a voltage obtained by subtracting a prescribed voltage from a voltage of the second reference voltage; a PFM comparison circuit configured to compare the second error voltage supplied to a first input terminal and the second reference voltage supplied to a second input terminal and output a comparison result signal of a first or second level; an oscillation circuit configured to output a clock signal of a prescribed frequency with respect to the comparison result signal of the first level and stop the output of the clock signal with respect to the comparison result signal of the second level; and a PWM conversion circuit configured to turn on/off the switching element with a desired pulse width, based on the second error voltage and the output of the oscillation circuit.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 97.0
- Lexical Diversity: 2.72222
- Patent Class: 323.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16032338', '12554076', '14195274', '13486531', '14573837']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7696871751818182
- 35 USC 102 Novelty (BERT): 0.5550834834354692
- Combined Prediction Score: 0.7482268060071833
- Mean Citation Score: 354.569964
- Max Citation Score: 445.67645
- Similarity Product: 379.3901770126522

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