公开(公告)号：US09948182B2

公开(公告)日：2018-04-17

申请号：US14856846

申请日：2015-09-17

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Nathan S. Lazarus ,  Sarah S. Bedair

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M3/335

Abstract: A DC-DC power converter having a power source, a load, and a transmission line terminated at one end. A first switch is electrically connected between the power source and a second end of the transmission line and movable between an open and a closed position. A second switch is electrically connected between the second end of the transmission line and the load and is movable between an open and a closed position. A switch control circuit switches the first and second switches between their respective open and closed positions. A pulse forming network forms the transmission line to store the charge in the transmission line.

公开(公告)号：US09880120B2

公开(公告)日：2018-01-30

申请号：US14337671

申请日：2014-07-22

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Simon J. Ghionea ,  David M. Hull ,  Gabriel L. Smith ,  Jeffrey S. Pulskamp ,  Sarah S. Bedair

IPC: G01N27/26 ,  G01R29/12

CPC classification number: G01N27/26 ,  G01R29/12

Abstract: According to embodiments, an electric field sensor having a sensor electrode is constructed of an electrically conductive material and having one or more outwardly protruding pillars. A screen electrode overlies the sensor electrode and has one or more openings which register with the one or more pillars on the sensor electrode. At least one piezoelectric actuator is connected to the screen electrode so that, when excited by a voltage signal, the piezoelectric actuator modulates the screen electrode toward and away from the sensor electrode at the frequency of the periodic voltage signal. An output circuit configured to detect a voltage, a current output, or both, between the sensor electrode and the screen electrode which is proportional in magnitude to the strength of the electric field.

公开(公告)号：US10038376B2

公开(公告)日：2018-07-31

申请号：US14818336

申请日：2015-08-05

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Nathan S. Lazarus ,  Sarah S. Bedair

IPC: H02M3/158 ,  H02M1/00 ,  H02M7/48

CPC classification number: H02M3/158 ,  H02M2001/0058 ,  H02M2001/0064 ,  H02M2007/4818 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: A DC-DC power converter having a power source, a load, and a transmission line terminated at one end. A first switch is electrically connected between the power source and the second end of the transmission line. A second switch is electrically connected between the second end of the transmission line and the load and both switches are movable between an open and a closed position. A switch control circuit switches the first and second electric switches between their open and closed positions at a selected high frequency. A plurality of variable impedance elements are electrically connected to the transmission line at spaced intervals while an impedance control circuit is electrically connected to the variable impedance elements to vary the impedance of the impedance elements and thereby vary the voltage applied to the load.

公开(公告)号：US20170040893A1

公开(公告)日：2017-02-09

申请号：US14818336

申请日：2015-08-05

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Nathan S. Lazarus ,  Sarah S. Bedair

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M2001/0058 ,  H02M2001/0064 ,  H02M2007/4818 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: A DC-DC power converter having a power source, a load, and a transmission line terminated at one end. A first switch is electrically connected between the power source and the second end of the transmission line. A second switch is electrically connected between the second end of the transmission line and the load and both switches are movable between an open and a closed position. A switch control circuit switches the first and second electric switches between their open and closed positions at a selected high frequency. A plurality of variable impedance elements are electrically connected to the transmission line at spaced intervals while an impedance control circuit is electrically connected to the variable impedance elements to vary the impedance of the impedance elements and thereby vary the voltage applied to the load.

Abstract translation: 一种DC-DC电力转换器，其具有在一端终止的电源，负载和传输线。 第一开关电连接在电源和传输线的第二端之间。 第二开关电连接在传输线的第二端和负载之间，并且两个开关可在打开和关闭位置之间移动。 开关控制电路以选定的高频率在其打开和关闭位置之间切换第一和第二电开关。 多个可变阻抗元件以间隔的间隔电连接到传输线，同时阻抗控制电路电连接到可变阻抗元件以改变阻抗元件的阻抗，从而改变施加到负载的电压。

公开(公告)号：US20160025666A1

公开(公告)日：2016-01-28

申请号：US14337671

申请日：2014-07-22

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Simon J. Ghionea ,  David M. Hull ,  Gabriel L. Smith ,  Jeffrey S. Pulskamp ,  Sarah S. Bedair

IPC: G01N27/26

CPC classification number: G01N27/26 ,  G01R29/12

Abstract: According to embodiments, an electric field sensor having a sensor electrode is constructed of an electrically conductive material and having one or more outwardly protruding pillars. A screen electrode overlies the sensor electrode and has one or more openings which register with the one or more pillars on the sensor electrode. At least one piezoelectric actuator is connected to the screen electrode so that, when excited by a voltage signal, the piezoelectric actuator modulates the screen electrode toward and away from the sensor electrode at the frequency of the periodic voltage signal. An output circuit configured to detect a voltage, a current output, or both, between the sensor electrode and the screen electrode which is proportional in magnitude to the strength of the electric field.

Abstract translation: 根据实施例，具有传感器电极的电场传感器由导电材料构成并具有一个或多个向外突出的支柱。 屏幕电极覆盖在传感器电极上并且具有与传感器电极上的一个或多个柱对准的一个或多个开口。 至少一个压电致动器连接到屏幕电极，使得当由电压信号激发时，压电致动器以周期性电压信号的频率将屏幕电极调节到传感器电极和远离传感器电极。 输出电路，被配置为检测传感器电极和屏幕电极之间的电压，电流输出或两者，其大小与电场的强度成正比。