公开(公告)号：US09917528B2

公开(公告)日：2018-03-13

申请号：US14868215

申请日：2015-09-28

Applicant: Advanced Charging Technologies, LLC

Inventor： W. J. Weaver, Jr. ,  Michael H. Freeman ,  Mitchael C. Freeman ,  Robert Dieter ,  Brian Santee

IPC: H02M5/458 ,  H02M7/217 ,  H02M7/155 ,  H02M3/335 ,  H02M7/48 ,  H02M1/36 ,  H02J7/00 ,  H02M1/08 ,  H05B33/08 ,  H02M1/00

CPC classification number: H02M5/458 ,  H02J7/0052 ,  H02J2007/0062 ,  H02M1/08 ,  H02M1/36 ,  H02M3/33507 ,  H02M7/155 ,  H02M7/217 ,  H02M7/2176 ,  H02M7/48 ,  H02M2001/0009 ,  H02M2001/0019 ,  H05B33/0809 ,  Y10T307/406

Abstract: An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and is adapted to receive a control signal and to produce an alternating current power signal. The frequency of the alternating current power signal is responsive to the control signal. The frequency dependent reactive device is electrically coupled to the pair of transistors for receiving the alternating current power signal and producing an output power signal. The frequency dependent reactive device is chosen to achieve a desired voltage of the output power signal relative to the frequency of the alternating current power signal. The control element senses an actual voltage of the direct current power signal and modifies the control signal delivered to achieve the desired voltage of the direct current power signal.

公开(公告)号：US09602016B2

公开(公告)日：2017-03-21

申请号：US14996576

申请日：2016-01-15

Applicant: Advanced Charging Technologies, LLC

Inventor： Michael H. Freeman ,  W. J. Weaver, Jr. ,  Mitchael C. Freeman ,  Robert Dieter ,  Andrea Baschirotto ,  Piero Malcovati ,  Marco Grassi ,  Glenn Noufer ,  Randall L. Sandusky ,  Neaz E. Farooqi ,  Jim Devoy ,  Silvia Jaeckel ,  Madison Hayes Yarbro Freeman

IPC: H02M3/335 ,  G05F1/46 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M3/07 ,  H02M3/156 ,  H02M7/06 ,  H02M1/00

CPC classification number: H02M3/33546 ,  G05F1/462 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M3/07 ,  H02M3/073 ,  H02M3/156 ,  H02M3/33515 ,  H02M3/33553 ,  H02M7/06 ,  H02M2001/0009 ,  H02M2001/0025 ,  H02M2001/0032 ,  H02M2001/0045 ,  H02M2001/007 ,  H02M2003/072 ,  H02M2003/075 ,  H03M7/10 ,  Y02B70/16

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a forward converter coupled to the input and output terminals. The forward converter includes a transformer, and a primary side regulation circuit coupled to a primary side of the transformer. The primary side regulation circuit includes a switching device coupled to the primary side, a current sense circuit configured to sense a current level on the primary side, and a controller configured to generate a pulse-width modulated control signal delivered to the switching device as a function of the sensed current level to regulate the transformer to deliver the output power signal at a desired voltage level.

公开(公告)号：US09991821B2

公开(公告)日：2018-06-05

申请号：US13843401

申请日：2013-03-15

Applicant: Advanced Charging Technologies, LLC

Inventor： Michael H. Freeman ,  W. J. Weaver, Jr. ,  Mitchael C. Freeman ,  Robert Dieter ,  Brian Santee

IPC: H02M7/539 ,  H02M7/217

CPC classification number: H02M7/539 ,  H02M7/2176

Abstract: An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and is adapted to receive a control signal and to produce an alternating current power signal. The frequency of the alternating current power signal is responsive to the control signal. The frequency dependent reactive device is electrically coupled to the pair of transistors for receiving the alternating current power signal and producing an output power signal. The frequency dependent reactive device is chosen to achieve a desired voltage of the output power signal relative to the frequency of the alternating current power signal. The control element senses an actual voltage of the direct current power signal and modifies the control signal delivered to achieve the desired voltage of the direct current power signal.

公开(公告)号：US09748852B2

公开(公告)日：2017-08-29

申请号：US14925860

申请日：2015-10-28

Applicant: Advanced Charging Technologies, LLC

Inventor： Michael H. Freeman ,  W. J. Weaver, Jr. ,  Mitchael C. Freeman ,  Robert Dieter ,  Andrea Baschirotto ,  Piero Malcovati ,  Marco Grassi ,  Glenn Noufer ,  Randall L. Sandusky ,  Neaz Farooqi ,  Jim Devoy ,  Silvia Jaeckel ,  Madison Hayes Yarbro Freeman

IPC: H02M3/07 ,  H02M3/335 ,  G05F1/46 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M3/156 ,  H02M7/06 ,  H02M1/00

CPC classification number: H02M3/33546 ,  G05F1/462 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M3/07 ,  H02M3/073 ,  H02M3/156 ,  H02M3/33515 ,  H02M3/33553 ,  H02M7/06 ,  H02M2001/0009 ,  H02M2001/0025 ,  H02M2001/0032 ,  H02M2001/0045 ,  H02M2001/007 ,  H02M2003/072 ,  H02M2003/075 ,  H03M7/10 ,  Y02B70/16

Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a plurality of voltage reduction circuit cells coupled between the input terminal and the output terminal. Each of the voltage reduction circuit cells includes a pair of flyback capacitors, a switching circuit, and a hold capacitor. The switching device is configured to operate the corresponding voltage reduction circuit cell at a charging phase and at a discharging phase. The plurality of voltage reduction circuit cells are configured to deliver the output power signal having a voltage level that is less than the voltage level of the input power signal.