PATENT CLAIM ANALYSIS

Application Number: 15877869
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["323", "271000"]

Abstract:
Various methods and devices that involve control circuits for power converters are disclosed. One method comprises controlling a switch using a control signal based on a comparison signal. The switch controls a transfer of power between an input node, which receives an input, and an output node. The method comprises measuring an output of the power converter, generating an error signal based on the output, generating a periodic ramp signal with a varying period, providing the error signal to a first input terminal of a comparator, providing the ramp signal to a second input terminal of the comparator, and generating the comparison signal based on the error signal and the ramp signal using the comparator. The method comprises increasing a slope of the ramp signal in response to an increase in the input, and increasing the slope of the ramp signal in response to a decrease in the varying period.

Claim (Index 1):
A power converter comprising:\n an input node to receive an input voltage; an output node to provide an output voltage; a switch with a switch control input and a variable impedance path, the variable impedance path being configured to be controlled by a control signal received at the switch control input, and the variable impedance path being configured to control a transfer of power from the input node to the output node; a sensing circuit coupled to the output node; an error amplifier with a first error amplifier input coupled to the sensing circuit and a second error amplifier input coupled to a reference voltage, the error amplifier being configured to generate an error signal based on a signal received at the error amplifier from the sensing circuit; a periodic ramp generator circuit to generate a ramp signal with a slope and a varying period; a comparator with: (i) a first comparator input communicatively coupled to an output of the error amplifier to receive the error signal, (ii) a second comparator input communicatively coupled to the periodic ramp generator circuit to receive the ramp signal, and (iii) a comparator output to provide a comparison signal; a driver circuit with: (i) an input communicatively coupled to the comparator output to receive the comparison signal, and (ii) an output coupled to the switch control input; a first control circuit communicatively coupled to the periodic ramp generator circuit and that is configured to change a slope of the ramp signal in response to a change in the input voltage; a second control circuit communicatively coupled to the periodic ramp generator circuit and that is configured to change the slope of the ramp signal in response to a change in the varying period of the ramp signal; and a third control circuit communicatively coupled to the periodic ramp generator circuit and that is configured to change the slope of the ramp signal in response to a change in the output voltage.

Metadata:
- Claim Count in Document: 25.0
- Percentile: 86.0
- Lexical Diversity: 2.76271
- Patent Class: 323.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15347693', '14089955', '15651998', '15251936', '11681672']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7030975698473628
- 35 USC 102 Novelty (BERT): 0.5247860610604622
- Combined Prediction Score: 0.6852664189686728
- Mean Citation Score: 265.328036
- Max Citation Score: 347.34686
- Similarity Product: 308.0040665732312

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

Dataset: test