公开(公告)号：US11552554B2

公开(公告)日：2023-01-10

申请号：US17237973

申请日：2021-04-22

申请人： Robert S. Wrathall

发明人： Robert S. Wrathall

IPC分类号： H02M1/42 ,  H02M1/12 ,  H02M5/293 ,  H02M1/00

摘要： Provided are electrical circuits and methods for power factor correction. An example method includes receiving, by converter, an input voltage at a fundamental frequency and generating an output voltage; generating, based on the output voltage, a first measurement signal; subtracting a first reference signal from the first measurement signal to obtain a first error signal; generating an adaptive current sense signal, generating a reference voltage based on the input voltage, subtracting the reference voltage from the current sense signal thus generating a second measurement signal to control the current measurement; subtracting the second measurement signal from the input voltage to obtain a difference signal, wherein the difference signal is largely minimized by removing overtones of the fundamental frequency; generating, based on the difference signal, a second error signal; using a sum of the second error signal as a first order correction to the first error signal to regulate the converter.

公开(公告)号：US20220166307A1

公开(公告)日：2022-05-26

申请号：US17589425

申请日：2022-01-31

申请人： Robert S. Wrathall

发明人： Robert S. Wrathall

IPC分类号： H02M1/42 ,  H02M1/12 ,  H02M5/293

摘要： Provided are electrical circuits and methods for power factor correction. An example method includes receiving, by converter, an input voltage at a fundamental frequency and generating an output voltage; generating, based on the output voltage, a first measurement signal; subtracting a first reference signal from the first measurement signal to obtain a first error signal; generating an adaptive current sense signal, generating a reference voltage based on the input voltage, subtracting the reference voltage from the current sense signal thus generating a second measurement signal to control the current measurement; subtracting the second measurement signal from the input voltage to obtain a difference signal, wherein the difference signal is largely minimized by removing overtones of the fundamental frequency; generating, based on the difference signal, a second error signal; using a sum of the second error signal as a first order correction to the first error signal to regulate the converter.

公开(公告)号：US20220166306A1

公开(公告)日：2022-05-26

申请号：US17237973

申请日：2021-04-22

申请人： Robert S. Wrathall

发明人： Robert S. Wrathall

IPC分类号： H02M1/42 ,  H02M1/12 ,  H02M5/293

摘要： Provided are electrical circuits and methods for power factor correction. An example method includes receiving, by converter, an input voltage at a fundamental frequency and generating an output voltage; generating, based on the output voltage, a first measurement signal; subtracting a first reference signal from the first measurement signal to obtain a first error signal; generating an adaptive current sense signal, generating a reference voltage based on the input voltage, subtracting the reference voltage from the current sense signal thus generating a second measurement signal to control the current measurement; subtracting the second measurement signal from the input voltage to obtain a difference signal, wherein the difference signal is largely minimized by removing overtones of the fundamental frequency; generating, based on the difference signal, a second error signal; using a sum of the second error signal as a first order correction to the first error signal to regulate the converter.

公开(公告)号：US11637493B2

公开(公告)日：2023-04-25

申请号：US17589425

申请日：2022-01-31

申请人： Robert S. Wrathall

发明人： Robert S. Wrathall

IPC分类号： H02M1/42 ,  H02M1/12 ,  H02M5/293 ,  H02M1/00

摘要： Provided are electrical circuits and methods for power factor correction. An example method includes receiving, by converter, an input voltage at a fundamental frequency and generating an output voltage; generating, based on the output voltage, a first measurement signal; subtracting a first reference signal from the first measurement signal to obtain a first error signal; generating an adaptive current sense signal, generating a reference voltage based on the input voltage, subtracting the reference voltage from the current sense signal thus generating a second measurement signal to control the current measurement; subtracting the second measurement signal from the input voltage to obtain a difference signal, wherein the difference signal is largely minimized by removing overtones of the fundamental frequency; generating, based on the difference signal, a second error signal; using a sum of the second error signal as a first order correction to the first error signal to regulate the converter.

公开(公告)号：US10998815B1

公开(公告)日：2021-05-04

申请号：US17102035

申请日：2020-11-23

申请人： Robert S. Wrathall

发明人： Robert S. Wrathall

IPC分类号： H02M1/42 ,  H02M1/12 ,  H02M5/293 ,  H02M1/00

摘要： Provided are electrical circuits and methods for power factor correction. An example method includes receiving, by converter, an input voltage at a fundamental frequency and generating an output voltage; generating, based on the output voltage, a first measurement signal; subtracting a first reference signal from the first measurement signal to obtain a first error signal; generating an adaptive current sense signal, generating a reference voltage based on the input voltage, subtracting the reference voltage from the current sense signal thus generating a second measurement signal to control the current measurement; subtracting the second measurement signal from the input voltage to obtain a difference signal, wherein the difference signal is largely minimized by removing overtones of the fundamental frequency; generating, based on the difference signal, a second error signal; using a sum of the second error signal as a first order correction to the first error signal to regulate the converter.