PATENT CLAIM ANALYSIS

Application Number: 15872481
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["363", "021170"]

Abstract:
A method for controlling a power switch of a power converter includes: detecting whether a zero current event occurs; generating an error signal; generating an ramp signal having a slope proportional to a ratio of an on time during which of the power switch is turned on in a previous switching cycle to a time length of the previous switching cycle; comparing the ramp signal with the error signal; turning on the power switch when the zero current event occurs; and turning off the power switch and rapidly lowering the level of the ramp signal when the ramp signal is greater than or equal to the error signal.

Claim (Index 8):
A method for controlling a power switch ( 113 ) of an asynchronous-type buck-boost power converter ( 400 ), the asynchronous-type buck-boost power converter ( 400 ) comprising a first coil ( 407 ), an inductive coil ( 411 ), and a diode ( 415 ), wherein the first coil ( 407 ) is coupled between an input voltage signal (Vin) and the power switch ( 113 ), the inductive coil ( 411 ) is configured to operably sense the first coil ( 407 ) to provide an inductive signal (SS), the power switch ( 113 ) is coupled between the first coil ( 407 ) and a fixed-voltage terminal, and the diode ( 415 ) is coupled between the first coil ( 407 ) and a load ( 119 ) of the asynchronous-type buck-boost power converter ( 400 ), the method comprising:\n detecting the inductive signal (SS) to determine whether a zero current event occurs; generating an error signal (COMP) corresponding to an output voltage signal (Vout) or an output current signal (Iout) of the asynchronous-type buck-boost power converter ( 400 ) according to a reference signal (Vref); generating an ramp signal (RAMP) having a slope proportional to a ratio of an on time during which of the power switch ( 113 ) is turned on in a previous switching cycle to a time length of the previous switching cycle; comparing the ramp signal (RAMP) with the error signal (COMP); turning on the power switch ( 113 ) when the zero current event occurs; and when the ramp signal (RAMP) is greater than or equal to the error signal (COMP), turning off the power switch ( 113 ) and rapidly lowering the level of the ramp signal (RAMP).

Metadata:
- Claim Count in Document: 4.0
- Percentile: 86.0
- Lexical Diversity: 2.12963
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14547870', '12016950', '10973748', '12674618', '13191282']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8054996583627109
- 35 USC 102 Novelty (BERT): 0.5245004301615667
- Combined Prediction Score: 0.7773997355425964
- Mean Citation Score: 227.033244
- Max Citation Score: 351.64597000000015
- Similarity Product: 252.42519237636336

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