公开(公告)号：US08520413B2

公开(公告)日：2013-08-27

申请号：US13211892

申请日：2011-08-17

Applicant: Ken Tran ,  Feng Tian ,  Franklin Lee ,  Wangbo Zhang

Inventor： Ken Tran ,  Feng Tian ,  Franklin Lee ,  Wangbo Zhang

IPC: H02M3/335

CPC classification number: H02M3/155 ,  H02M3/158 ,  H02M2001/0019 ,  H02M2001/0022 ,  Y02B70/1425

Abstract: A power converter includes first and second circuit modules, a first capacitor, a second diode and a control module. The first circuit module includes a switching element in parallel with a first diode. The second circuit module includes a first inductor and the first circuit module. The inductor is in series with the first circuit module. The first capacitor is in parallel with the second circuit module. The second diode includes a first terminal and a second terminal, where the first terminal is in series with the second circuit module and the first capacitor, and the second terminal is coupled to a second power terminal. The control module varies one or more of the first capacitor and the first inductor based on at least one of a current of a load circuit or an input voltage. A resonating waveform is generated by a resonant circuit of the second circuit and is used by the control module to turn off the switching element under zero-current and zero-voltage conditions.

Abstract translation: 功率转换器包括第一和第二电路模块，第一电容器，第二二极管和控制模块。 第一电路模块包括与第一二极管并联的开关元件。 第二电路模块包括第一电感器和第一电路模块。 电感器与第一个电路模块串联。 第一电容器与第二电路模块并联。 第二二极管包括第一端子和第二端子，其中第一端子与第二电路模块和第一电容器串联，并且第二端子耦合到第二电源端子。 控制模块基于负载电路的电流或输入电压中的至少一个来改变第一电容器和第一电感器中的一个或多个。 谐振波形由第二电路的谐振电路产生，并被控制模块用于在零电流和零电压条件下关断开关元件。

公开(公告)号：US20130043854A1

公开(公告)日：2013-02-21

申请号：US13211892

申请日：2011-08-17

Applicant: Ken Tran ,  Feng Tian ,  Franklin Lee ,  Wangbo Zhang

Inventor： Ken Tran ,  Feng Tian ,  Franklin Lee ,  Wangbo Zhang

IPC: G05F1/00

CPC classification number: H02M3/155 ,  H02M3/158 ,  H02M2001/0019 ,  H02M2001/0022 ,  Y02B70/1425

Abstract: A power converter includes first and second circuit modules, a first capacitor, a second diode and a control module. The first circuit module includes a switching element in parallel with a first diode. The second circuit module includes a first inductor and the first circuit module. The inductor is in series with the first circuit module. The first capacitor is in parallel with the second circuit module. The second diode includes a first terminal and a second terminal, where the first terminal is in series with the second circuit module and the first capacitor, and the second terminal is coupled to a second power terminal. The control module varies one or more of the first capacitor and the first inductor based on at least one of a current of a load circuit or an input voltage. A resonating waveform is generated by a resonant circuit of the second circuit and is used by the control module to turn off the switching element under zero-current and zero-voltage conditions.

Abstract translation: 功率转换器包括第一和第二电路模块，第一电容器，第二二极管和控制模块。 第一电路模块包括与第一二极管并联的开关元件。 第二电路模块包括第一电感器和第一电路模块。 电感器与第一个电路模块串联。 第一电容器与第二电路模块并联。 第二二极管包括第一端子和第二端子，其中第一端子与第二电路模块和第一电容器串联，并且第二端子耦合到第二电源端子。 控制模块基于负载电路的电流或输入电压中的至少一个来改变第一电容器和第一电感器中的一个或多个。 谐振波形由第二电路的谐振电路产生，并被控制模块用于在零电流和零电压条件下关断开关元件。

公开(公告)号：US07872450B1

公开(公告)日：2011-01-18

申请号：US11025554

申请日：2004-12-29

Applicant: Daniel C. Cohen ,  William L. Owens ,  Franklin Lee ,  James D. Orlando

Inventor： Daniel C. Cohen ,  William L. Owens ,  Franklin Lee ,  James D. Orlando

IPC: H02J7/00 ,  H02J7/04

CPC classification number: H02J7/0068

Abstract: A system includes an input configured to connect to a power source providing an input voltage, an output configured to connect to a load and to transfer power from the power source to the load, a battery selectively coupled to the input to receive current from the power source, a detector configured to indicate whether the input voltage drops more than a threshold amount, and a processor configured to regulate the selective coupling of the battery to the input to regulate a charging current supplied to the battery, the processor configured to regulate the selective coupling such that if a first charge current induces a drop in the input voltage beyond the threshold amount, then the processor will change the charging current to a second charge current that is lower than the first charge current.

公开(公告)号：US2019947A

公开(公告)日：1935-11-05

申请号：US73294134

申请日：1934-06-28

Applicant: FRANKLIN LEE ALLEN

Inventor： ALLEN JOHN G

IPC: A47C21/02

CPC classification number: A47C21/022 ,  Y10T24/23