公开(公告)号：US08640542B2

公开(公告)日：2014-02-04

申请号：US13202755

申请日：2009-09-23

申请人： Tong Zhang ,  Xiaojun Xue ,  Xiaoyang Zhang ,  Pengqin Wu

发明人： Tong Zhang ,  Xiaojun Xue ,  Xiaoyang Zhang ,  Pengqin Wu

IPC分类号： G01P15/08

CPC分类号： G01P15/093 ,  G01P15/097 ,  G02B6/12007 ,  G02B6/1221 ,  G02B2006/12138

摘要： A cantilever beam structural resonant-type integrated optical waveguide accelerometer, includes an input waveguide (1), a dissymmetrical structural Mach-Zehnder interferometer (2), a micro-mechanical vibration cantilever beam (3), a short curved waveguide (4) and an output waveguide (5); all the waveguide structures and the cantilever beam use the integrated optical micromachining technique, and the device single-scale integration can be realized by using the temperature-insensitive organic polymer optical waveguide structure and the organic polymer substrate, the key technique indexes such as detection sensitivity, dynamic range are extensively adjusted. The phase difference of the optical signal can be measured by detecting the optical intensity of the resonant frequency of the optical circuit so as to achieve high sensitive acceleration detection, and to be free from the effect of the ambient temperature disturbance and waveguide birefringence.

摘要翻译： 一种悬臂梁结构谐振型集成光波导加速度计，包括输入波导（1），不对称结构马赫 - 策德尔干涉仪（2），微机械振动悬臂梁（3），短弯曲波导（4）和 输出波导（5）; 所有波导结构和悬臂梁均采用集成光学微机械加工技术，通过使用温度不敏感的有机聚合物光波导结构和有机聚合物基板实现了器件单尺度集成，检测灵敏度等关键技术指标 ，动态范围被广泛调整。 可以通过检测光电路的谐振频率的光强度来测量光信号的相位差，从而实现高灵敏度的加速度检测，并且不受环境温度干扰和波导双折射的影响。

公开(公告)号：US20100080026A1

公开(公告)日：2010-04-01

申请号：US12243082

申请日：2008-10-01

申请人： Xiaoyang Zhang

发明人： Xiaoyang Zhang

IPC分类号： H02M7/155

CPC分类号： H02M1/4225 ,  Y02B70/126

摘要： A power converter that is operable to convert AC power into DC power that may be delivered to a load. The power converter operates to bypass a power factor correction (PFC) circuit during a portion of each AC power cycle. The power converter bypasses the PFC circuit when an AC input voltage is greater than a DC output voltage. The power converter may also include sensing circuitry to sense the AC input voltage and the DC output voltage of the power converter. The power converter may include one or more diodes that function to deliver power directly to a load when the AC input voltage is greater than the DC output voltage, thereby bypassing the PFC circuit. The DC output voltage of the power converter may be regulated to a level that is less than the peak AC input voltage.

摘要翻译： 一种功率转换器，其可操作以将AC功率转换成可以传送到负载的DC功率。 电源转换器在每个交流电源周期的一部分期间操作以旁路功率因数校正（PFC）电路。 当交流输入电压大于直流输出电压时，电源转换器旁路PFC电路。 功率转换器还可以包括用于感测电力转换器的AC输入电压和DC输出电压的感测电路。 功率转换器可以包括一个或多个二极管，其用于在AC输入电压大于DC输出电压时直接将功率传递给负载，从而绕过PFC电路。 功率转换器的直流输出电压可以调节到小于峰值交流输入电压的水平。

公开(公告)号：US20090257255A1

公开(公告)日：2009-10-15

申请号：US12101700

申请日：2008-04-11

申请人： Xiaoyang Zhang

发明人： Xiaoyang Zhang

IPC分类号： H02H7/10

CPC分类号： H02M3/335 ,  H02M1/34 ,  H02M2001/344

摘要： A transition mode power converter having an active snubber the operation of which is controlled using an auxiliary winding on the transformer of the power converter. In one embodiment, the power converter includes a transformer having a primary winding connected to a voltage source, a primary switch, an auxiliary switch, a capacitor, and an auxiliary winding on the transformer. The primary switch includes a first terminal connected to the primary winding of the transformer and a second terminal connected to a common node. The auxiliary switch includes a first terminal connected to the voltage source and to the primary winding. The capacitor is connected between a second terminal of the auxiliary switch and the first terminal of the primary switch. The auxiliary winding of the transformer is connected to a third terminal of the auxiliary switch and controls operation of the auxiliary switch via the third terminal.

摘要翻译： 一种具有有源缓冲器的过渡模式功率转换器，其工​​作通过功率转换器的变压器上的辅助绕组进行控制。 在一个实施例中，功率转换器包括具有连接到变压器上的电压源，初级开关，辅助开关，电容器和辅助绕组的初级绕组的变压器。 主开关包括连接到变压器的初级绕组的第一端子和连接到公共节点的第二端子。 辅助开关包括连接到电压源和初级绕组的第一端子。 电容器连接在辅助开关的第二端子和主开关的第一端子之间。 变压器的辅助绕组连接到辅助开关的第三端子，并通过第三端子控制辅助开关的操作。

公开(公告)号：US08891916B2

公开(公告)日：2014-11-18

申请号：US13123257

申请日：2009-09-18

申请人： Tong Zhang ,  Xiaoyang Zhang ,  Pengqin Wu ,  Jianguo Chen

发明人： Tong Zhang ,  Xiaoyang Zhang ,  Pengqin Wu ,  Jianguo Chen

IPC分类号： G02B6/26 ,  G02B6/42 ,  G02B6/10 ,  G02B6/122 ,  B82Y20/00

CPC分类号： G02B6/1226 ,  B82Y20/00

摘要： A surface-plasmon-polaritons (SPPs) tunable optical resonant ring filter that includes an SPPs waveguide, an SPPs tunable directional coupler, and an SPPs tunable resonant ring. The tunabilities of the resonant frequency, the resonant depth, and the filtering bandwidth are achieved by tuning the loss and transmission phase of the resonant ring and the coupling ratio of the directional coupler. Since the metal core layer of the SPPs waveguide is capable of multiplexing electro-optical signals, the SPPs tunable optical resonant ring filter can be used not only in an integrated optics system, but also in an integrated electro-optics hybrid system.

摘要翻译： 包括SPP波导，SPP可调定向耦合器和SPP可调共振环的表面等离子体激元（SPP）可调谐光学谐振环形滤波器。 谐振频率，谐振深度和滤波带宽的可调性通过调谐谐振环的损耗和透射相以及定向耦合器的耦合比来实现。 由于SPP波导的金属芯层能够复用电光信号，因此SPP可调光学谐振环形滤波器不仅可以用于集成光学系统中，而且可用于集成的电光混合系统中。

公开(公告)号：US08605286B2

公开(公告)日：2013-12-10

申请号：US13321147

申请日：2009-09-23

申请人： Tong Zhang ,  Xiaojun Xue ,  Xiaoyang Zhang ,  Pengqin Wu ,  Qiuyue Chen

发明人： Tong Zhang ,  Xiaojun Xue ,  Xiaoyang Zhang ,  Pengqin Wu ,  Qiuyue Chen

IPC分类号： G01C19/72 ,  G01B9/02 ,  G02B6/12 ,  G02B6/26 ,  G02B6/42

CPC分类号： G01C19/721 ,  B82Y20/00 ,  G02B6/1226

摘要： A biaxial optical gyroscope is provided, which realizes mode separation using the waveguide devices with different material, and the biaxial optical gyroscope includes: a surface Plasmon Polariton Y-type mode splitter (1), a Y waveguide integrated optical device (2), a Y waveguide integrated optical chip (3), a first polarization-maintaining fiber coil (41), a second polarization-maintaining fiber coil (42), directional couplers (51, 52) and detectors (61, 62), wherein the two output ends of the surface Plasmon Polariton Y-type mode splitter (1) are respectively connected to the Y waveguide integrated optical device (2) and the Y waveguide integrated optical chip (3), and the output ends of the Y waveguide integrated optical device (2) and the Y waveguide integrated optical chip (3) are respectively connected to the first polarization-maintaining fiber coil (41) and the second polarization-maintaining fiber coil (42).

摘要翻译： 提供了一种使用不同材料的波导器件实现模式分离的双轴光学陀螺仪，双轴光学陀螺仪包括：表面等离子体偏振Y型分离器（1），Y波导集成光学器件（2）， Y波导集成光学芯片（3），第一偏振保持光纤线圈（41），第二偏振保持光纤线圈（42），定向耦合器（51,52）和检测器（61,62），其中两个输出 表面的端部等离子体极化Y型分离器（1）分别连接到Y波导集成光学装置（2）和Y波导集成光学芯片（3），并且Y波导集成光学装置 2）和Y波导集成光学芯片（3）分别连接到第一偏振保持光纤线圈（41）和第二偏振保持光纤线圈（42）。

公开(公告)号：US08000112B2

公开(公告)日：2011-08-16

申请号：US12101700

申请日：2008-04-11

申请人： Xiaoyang Zhang

发明人： Xiaoyang Zhang

IPC分类号： H02M3/335

CPC分类号： H02M3/335 ,  H02M1/34 ,  H02M2001/344

摘要： A transition mode power converter having an active snubber the operation of which is controlled using an auxiliary winding on the transformer of the power converter. In one embodiment, the power converter includes a transformer having a primary winding connected to a voltage source, a primary switch, an auxiliary switch, a capacitor, and an auxiliary winding on the transformer. The primary switch includes a first terminal connected to the primary winding of the transformer and a second terminal connected to a common node. The auxiliary switch includes a first terminal connected to the voltage source and to the primary winding. The capacitor is connected between a second terminal of the auxiliary switch and the first terminal of the primary switch. The auxiliary winding of the transformer is connected to a third terminal of the auxiliary switch and controls operation of the auxiliary switch via the third terminal.

摘要翻译： 一种具有有源缓冲器的过渡模式功率转换器，其工​​作通过功率转换器的变压器上的辅助绕组进行控制。 在一个实施例中，功率转换器包括具有连接到变压器上的电压源，初级开关，辅助开关，电容器和辅助绕组的初级绕组的变压器。 主开关包括连接到变压器的初级绕组的第一端子和连接到公共节点的第二端子。 辅助开关包括连接到电压源和初级绕组的第一端子。 电容器连接在辅助开关的第二端子和主开关的第一端子之间。 变压器的辅助绕组连接到辅助开关的第三端子，并通过第三端子控制辅助开关的操作。

公开(公告)号：US08638578B2

公开(公告)日：2014-01-28

申请号：US12541566

申请日：2009-08-14

申请人： Xiaoyang Zhang

发明人： Xiaoyang Zhang

IPC分类号： H02M3/06

CPC分类号： H02M1/4225 ,  Y02B70/126

摘要： A power converter including a charge pump employable in a power adapter. In one embodiment, the charge pump includes a voltage divider with a first diode having a terminal coupled to a terminal of a first capacitor and a second diode having a terminal coupled to a terminal of a second capacitor and another terminal coupled to another terminal of the first capacitor. The charge pump also includes a third diode coupled across the second diode and the second capacitor, and a charge pump power switch coupled across the first capacitor and the second diode.

摘要翻译： 一种电力转换器，包括可用于电力适配器的电荷泵。 在一个实施例中，电荷泵包括具有第一二极管的分压器，第一二极管具有耦合到第一电容器的端子的端子和具有耦合到第二电容器的端子的端子的第二二极管，以及耦合到第二电容器的另一端子的另一端子 第一个电容。 电荷泵还包括耦合在第二二极管和第二电容器两端的第三二极管，以及耦合在第一电容器和第二二极管两端的电荷泵功率开关。

公开(公告)号：US07222278B2

公开(公告)日：2007-05-22

申请号：US10666770

申请日：2003-09-17

申请人： Charles E. Moore ,  Xiaoyang Zhang ,  Jeffrey R. Rearick

发明人： Charles E. Moore ,  Xiaoyang Zhang ,  Jeffrey R. Rearick

IPC分类号： G01R31/28 ,  H03K5/153 ,  H03K3/00

CPC分类号： G01R31/2815 ,  G01R31/31855 ,  G01R31/318572

摘要： Disclosed is a Boundary-Scan test receiver for capturing signals during board interconnect testing. The test receiver has a comparator with a first input to receive signals during board interconnect testing, and a second input to receive a reference voltage. A programmable hysteresis circuit is coupled to at least one of the comparator's inputs. The programmable hysteresis circuit may be configured to program a hysteresis voltage and/or a hysteresis delay, both of which help prevent the comparator from integrating signal noise.

摘要翻译： 公开了一种用于在板互连测试期间捕获信号的边界扫描测试接收器。 测试接收机具有比较器，其具有第一输入以在电路板互连测试期间接收信号，以及第二输入以接收参考电压。 可编程迟滞电路耦合到至少一个比较器的输入端。 可编程迟滞电路可以被配置为对滞后电压和/或滞后延迟进行编程，这两者都有助于防止比较器积分信号噪声。

公开(公告)号：US06594161B2

公开(公告)日：2003-07-15

申请号：US10039373

申请日：2001-11-09

申请人： Arian M. Jansen ,  Xiaoyang Zhang

发明人： Arian M. Jansen ,  Xiaoyang Zhang

IPC分类号： H02M3335

CPC分类号： H02M3/33592 ,  Y02B70/1475

摘要： A power converter having a transformer with a primary side winding and a secondary side winding, each having a switch. When the primary master switch is switched on, the transformer charges. When it is switched off, the intrinsic capacitance of the secondary slave switch discharges generating the zero voltage switching condition for the secondary slave switch. The secondary slave switch is switched on at a time determined in accordance with the waveform generated by the transformer. When the secondary slave switch is switched on, the transformer discharges and ultimately the charge from an output capacitor flows into the transformer as a backflow which charges the transformer. The secondary slave switch is switched off at a time determined in accordance with a current flowing through said secondary switch. The intrinsic capacitance of primary master switch discharges generating the zero voltage switching condition for primary master switch which is then switched on.

摘要翻译： 一种具有初级侧绕组和次级侧绕组的变压器的功率转换器，每个具有开关。 当主主开关打开时，变压器充电。 当它被关闭时，辅助从动开关的本征电容放电，从而为从属开关产生零电压开关条件。 辅助从动开关根据由变压器产生的波形确定的时间被接通。 当二次从动开关接通时，变压器放电，最终来自输出电容器的电荷作为向变压器充电的回流流入变压器。 次要从动开关在根据流过所述次级开关的电流确定的时间关闭。 初级主开关的固有电容放电，为主主开关产生零电压开关条件，然后接通。

公开(公告)号：US08964420B2

公开(公告)日：2015-02-24

申请号：US13324727

申请日：2011-12-13

申请人： Xiaoyang Zhang

发明人： Xiaoyang Zhang

IPC分类号： H02M3/335

CPC分类号： H02M3/33592 ,  Y02B70/1475

摘要： The disclosed embodiments provide a system that operates a flyback converter. During operation, the system senses an input voltage for the flyback converter. Next, the system uses the input voltage to determine a negative peak current that enables zero voltage switching for a primary switch in the flyback converter. Finally, the system uses the negative peak current to perform the zero voltage switching for the primary switch based on the input voltage, wherein the negative peak current reduces a power loss of the flyback converter.

摘要翻译： 所公开的实施例提供了操作反激转换器的系统。 在运行期间，系统检测反激式转换器的输入电压。 接下来，系统使用输入电压来确定对于反激式转换器中的初级开关进行零电压切换的负峰值电流。 最后，系统使用负峰值电流根据输入电压对初级开关进行零电压开关，其中负峰值电流降低了反激式转换器的功率损耗。