公开(公告)号：US07202617B2

公开(公告)日：2007-04-10

申请号：US10823214

申请日：2004-04-12

Applicant: Zhigan Wu ,  Genfu Zhou ,  Jianping Ying

Inventor： Zhigan Wu ,  Genfu Zhou ,  Jianping Ying

IPC: H02P1/18

CPC classification number: H02P6/182

Abstract: A circuit for controlling a brushless permanent magnet motor is provided. The circuit comprises windings, each of the windings having a first end connected at a common node and each of the windings having a second end connectable directly to supply voltages by switches, the second end connected to an upper supply voltage or connected to a lower supply voltage or disconnected from the supply voltages; blocking circuitry connectable with the second ends, the blocking circuitry producing a blocked voltage; a comparator receiving the blocked voltage on one input and a reference voltage on another input, the comparator result indicating polarity of a back emf voltage in the associated winding; and a latch providing control signals for the circuit, an input of the latch enabled by an enable signal, an output of the latch comprising a back emf voltage detection signal. The blocking circuitry and the comparator are duplicated for each of the windings.

Abstract translation: 提供一种用于控制无刷永磁电动机的电路。 电路包括绕组，每个绕组具有连接在公共节点处的第一端，并且每个绕组具有可直接连接的第二端，以便通过开关提供电压，第二端连接到较高电源电压或连接到较低电源 电压或与电源电压断开; 阻塞电路可与第二端连接，阻塞电路产生阻塞电压; 一个比较器，在一个输入端接收阻塞电压，在另一个输入上接收参考电压，比较器结果指示相关绕组中的反电动势电压的极性; 以及锁存器，其提供用于所述电路的控制信号，由使能信号使能的所述锁存器的输入，所述锁存器的输出包括反电动势电压检测信号。 对于每个绕组，阻塞电路和比较器被复制。

公开(公告)号：US20060197478A1

公开(公告)日：2006-09-07

申请号：US11284167

申请日：2005-11-21

Applicant: Weizi Wang ,  Zhigan Wu ,  Wanbing Jin ,  Jianping Ying ,  Qiong Yuan ,  Shih-Ming Huang ,  Wen-Shi Huang

Inventor： Weizi Wang ,  Zhigan Wu ,  Wanbing Jin ,  Jianping Ying ,  Qiong Yuan ,  Shih-Ming Huang ,  Wen-Shi Huang

IPC: H02P7/06

CPC classification number: H02P6/22 ,  H02K29/03 ,  H02P1/46 ,  H02P1/465 ,  H02P6/182 ,  H02P6/185 ,  H02P6/26

Abstract: The proposed method for starting a motor having a stator, a rotor, a winding and an asymmetrical air gap, comprising the steps of: (a) exciting said winding with a current impulse such that said stator generates a magnetic field and going to one of steps (b) and (d); (b) driving said rotor to rotate in a first direction if a polarity of a portion of a specific tooth of said stator close to said air-gap and a polarity of a specific magnetic pole of said rotor corresponding to said tooth are opposite; (c) stopping said current impulse at a specific moment such that said rotor is rotated in a second direction by a cogging torque and going to step (f); (d) driving said rotor to rotate in a first direction if a polarity of a portion of a specific tooth of said stator close to said air-gap and a polarity of a specific magnetic pole of said rotor corresponding to said tooth are the same; (e) stopping said current impulse at said moment such that said rotor is rotated in a second direction by an inertia; and (f) detecting a back electromotive force (BEMF) in said winding when said rotor is rotated such that said motor is controlled for commutating according to said BEMF. The provided method overcomes the drawbacks of failing to position the rotor due to the oscillation of the rotor in the prior art.

Abstract translation: 所提出的用于启动具有定子，转子，绕组和不对称气隙的电动机的方法，包括以下步骤：（a）用电流冲击激励所述绕组，使得所述定子产生磁场并进入 步骤（b）和（d）; （b）如果所述定子的特定齿的一部分的极性接近所述气隙，并且所述转子的与所述齿对应的特定磁极的极性相反，则驱动所述转子沿第一方向旋转; （c）在特定时刻停止所述电流脉冲，使得所述转子通过齿槽转矩沿第二方向旋转并转到步骤（f）; （d）如果所述定子的特定齿的一部分的极性靠近所述气隙并且所述转子的与所述齿相对应的特定磁极的极性相同，则驱动所述转子沿第一方向旋转; （e）在所述时刻停止所述电流脉冲，使得所述转子通过惯性沿第二方向旋转; 以及（f）当所述转子旋转时检测所述绕​​组中的反电动势（BEMF），使得所述电动机根据所述BEMF被控制换向。 所提供的方法克服了现有技术中由于转子的振荡导致转子不能定位的缺点。

公开(公告)号：US06937000B2

公开(公告)日：2005-08-30

申请号：US10836781

申请日：2004-04-30

Applicant: JianPing Ying ,  Teng Liu ,  JianHong Zeng

Inventor： JianPing Ying ,  Teng Liu ,  JianHong Zeng

IPC: H02M1/00 ,  H02M1/42 ,  H02M3/158 ,  C05F1/40

CPC classification number: H02M1/4208 ,  H02M3/158 ,  Y02B70/126

Abstract: A cross regulation controller and the methods for controlling a boost converter are proposed. The boost converter includes the first and second switch elements, and the first and second output capacitors. The cross regulation controller includes a first feedback control circuit for processing the second voltage, a sampling of the voltage across the second output capacitor, with a reference voltage to produce a third voltage and to transform the third voltage to generate a first pulse signal to drive the first switch element, and a second feedback control circuit for processing the first voltage, a sampling of the voltage across the first output capacitor, with a reference voltage to produce a fourth voltage and to transform the fourth voltage to generate a second pulse signal to drive the second switch element so as to achieve a balancing status between the first voltage and the second voltage.

Abstract translation: 提出了一种交叉调节控制器和控制升压转换器的方法。 升压转换器包括第一和第二开关元件以及第一和第二输出电容器。 交叉调节控制器包括用于处理第二电压的第一反馈控制电路，对第二输出电容器两端的电压进行采样，具有参考电压以产生第三电压并变换第三电压以产生第一脉冲信号以驱动 第一开关元件和第二反馈控制电路，用于处理第一电压，对第一输出电容器两端的电压进行采样，用参考电压产生第四电压并变换第四电压以产生第二脉冲信号， 驱动第二开关元件，以实现第一电压和第二电压之间的平衡状态。

公开(公告)号：US20050036341A1

公开(公告)日：2005-02-17

申请号：US10916306

申请日：2004-08-11

Applicant: Teng Liu ,  Xingkuan Guo ,  Jianping Ying ,  Jianhong Zeng

Inventor： Teng Liu ,  Xingkuan Guo ,  Jianping Ying ,  Jianhong Zeng

IPC: H02M3/335 ,  H02M7/5387

CPC classification number: H02M7/5387 ,  H02M3/33569

Abstract: The power converters employing the provided methods and controllers are proposed. The controller includes: a signal preprocessor for generating a current signal according to a sensed current of the transformer, an integrator electrically connected to the signal preprocessor for integrating the current signal and offering an integrated signal, a synthesizer electrically connected to the integrator for receiving and synthesizing the integrated signal and a slope compensation signal to generate a synthesized signal, an operational amplifier of a control loop for generating an amplified error signal, and a PWM comparator electrically connected to the operational amplifier and the synthesizer for comparing the amplified error signal and the synthesized signal and generating a PWM signal to turn on and off a switch of the transformer accordingly.

公开(公告)号：US06850425B2

公开(公告)日：2005-02-01

申请号：US10340697

申请日：2003-01-10

Applicant: Jingtao Tan ,  Jianping Ying ,  Hua Lin

Inventor： Jingtao Tan ,  Jianping Ying ,  Hua Lin

IPC: H02M7/48 ,  H02M7/493 ,  H02M7/00

CPC classification number: H02M7/493

Abstract: A parallel inverter system includes a plurality of inverters of an instantaneous voltage control type, an output bus, an active power bus, a phase bus, and controlling devices. The output bus is used for connecting outputs of said plurality of inverters to a load. The active power bus is connected to the plurality of inverters so as to provide an active power sharing reference. The phase bus is connected to the plurality of inverters so as to provide a system phase reference. And, controlling devices control sinusoidal wave references of inverters to have the same phase, the reactive power, and the active power responsive to the active power sharing reference and the system phase reference. The related methods are also discussed.

Abstract translation: 并联逆变器系统包括多个瞬时电压控制型逆变器，输出总线，有功功率总线，相位母线和控制装置。 输出总线用于将所述多个逆变器的输出连接到负载。 有源电力总线连接到多个逆变器，以提供有功功率共享参考。 相位母线与多个逆变器连接，以提供系统相位参考。 并且，控制装置控制逆变器的正弦波参考以响应于有功功率共享参考和系统相位参考而具有相同的相位，无功功率和有功功率。 还讨论了相关方法。

公开(公告)号：US06535402B1

公开(公告)日：2003-03-18

申请号：US10194677

申请日：2002-07-12

Applicant: Jianping Ying ,  Zhigan Wu ,  Jin Wang

Inventor： Jianping Ying ,  Zhigan Wu ,  Jin Wang

IPC: H02M112

CPC classification number: H02M7/5387 ,  H02M2001/0009 ,  H02M2001/385

Abstract: The invention relates to the compensation of dead time effect in electronic appliances such as inverters or converters having one or more legs with two complementary switches. The invented method mainly includes following steps providing an initial pulse width modulated (PWM) reference, providing a bias current and detecting the bias current crossing points, providing a dead time compensation signal which is adjusted responsive to the crossing points, and adding the dead time compensation signal to the PWM reference. Hence an adaptive compensation is accomplished independent of types of switching elements and load conditions. A high reliable circuit with low cost is further included as a preferred embodiment of bias current crossing points detection.

Abstract translation: 本发明涉及对诸如具有两个互补开关的一个或多个支脚的逆变器或转换器的电子设备中的死区时间效应的补偿。 本发明的方法主要包括以下步骤：提供初始脉冲宽度调制（PWM）参考，提供偏置电流和检测偏置电流交叉点，提供响应于交叉点调整的死区时间补偿信号，并增加死区时间 补偿信号到PWM参考。 因此，独立于开关元件和负载条件的类型实现自适应补偿。 作为偏置电流交叉点检测的优选实施例，还包括低成本的高可靠性电路。

公开(公告)号：US08890424B2

公开(公告)日：2014-11-18

申请号：US13547213

申请日：2012-07-12

Applicant: Lizhi Xu ,  Weiqiang Zhang ,  Jianping Ying ,  Ching-Ho Chou ,  Hsiang-Chen Wu

Inventor： Lizhi Xu ,  Weiqiang Zhang ,  Jianping Ying ,  Ching-Ho Chou ,  Hsiang-Chen Wu

IPC: H05B37/00

CPC classification number: H05B33/0815 ,  H05B33/0851 ,  Y02B20/347

Abstract: The present invention provides an illumination device, an illumination system, and a lamp. The illumination system includes the illumination device and a light modulation module. The illumination device includes a light emitting diode (LED) array, an alternating current (AC) current source, and an output power control module. The AC current source is electrically coupled to the LED array. The output power control module is electrically coupled to the LED array and the AC current source. The LED array, the AC current source, and the output power control module together form a closed-loop control loop. The light modulation module is electrically coupled to the closed-loop control loop for modulating illumination brightness of the LED.

Abstract translation: 本发明提供一种照明装置，照明系统和灯。 照明系统包括照明装置和光调制模块。 照明装置包括发光二极管（LED）阵列，交流（AC）电流源和输出功率控制模块。 AC电流源电耦合到LED阵列。 输出功率控制模块电耦合到LED阵列和AC电流源。 LED阵列，AC电流源和输出功率控制模块一起形成闭环控制回路。 光调制模块电耦合到闭环控制环路，用于调制LED的照明亮度。

公开(公告)号：US08884542B2

公开(公告)日：2014-11-11

申请号：US13314820

申请日：2011-12-08

Applicant: Weiqiang Zhang ,  Yan Zhong ,  Jianping Ying

Inventor： Weiqiang Zhang ,  Yan Zhong ,  Jianping Ying

IPC: H05B41/16 ,  H05B41/282 ,  H05B41/295

CPC classification number: H05B41/295 ,  H05B41/2828

Abstract: An electronic ballast for driving a light-emitting device, includes a square wave generator having a plurality of switch elements for converting a DC input voltage into a square-wave AC voltage. A transformer has a driving winding and a plurality of inductive windings mutually connected with each other, in which at least a portion of the inductive windings are respectively connected to a control terminal of the switch element. A resonant circuit connects the driving winding and a light-emitting device and converts the square-wave voltage into an AC output voltage to drive the light-emitting device. An auxiliary control unit connected to the transformer regulates a voltage waveform of the driving winding or a voltage waveform of the inductive winding according to a control signal, thereby changing the voltage waveform of the inductive winding connected to the switch element to adjust the switching frequencies of the switch elements.

Abstract translation: 一种用于驱动发光器件的电子镇流器，包括具有用于将DC输入电压转换为方波AC电压的多个开关元件的方波发生器。 变压器具有彼此相互连接的驱动绕组和多个感应绕组，其中至少一部分感应绕组分别连接到开关元件的控制端子。 谐振电路连接驱动绕组和发光装置，并将方波电压转换成AC输出电压以驱动发光装置。 连接到变压器的辅助控制单元根据控制信号调节驱动绕组的电压波形或电感性绕组的电压波形，从而改变连接到开关元件的电感线圈的电压波形，以调节开关频率 开关元件。

公开(公告)号：US08760083B2

公开(公告)日：2014-06-24

申请号：US13239072

申请日：2011-09-21

Applicant: Qi Zhang ,  Weiqiang Zhang ,  Jianping Ying

Inventor： Qi Zhang ,  Weiqiang Zhang ,  Jianping Ying

IPC: H05B37/02

CPC classification number: H05B41/2886 ,  Y02B20/202

Abstract: A ballast which controls the open-circuit voltage of the ballast. The ballast includes a power factor corrector (PFC) for receiving an AC input voltage and converting the AC input voltage into a power factor corrected DC voltage; a DC/DC converter connected to the PFC and having a switch placed at a low-voltage side of the DC/DC converter for converting the DC voltage of the PFC into a DC output voltage according to the switching operation of the switch; a controller connected to a control terminal of the switch of the DC/DC converter for sending a switching control signal to control the switch; and an open-circuit voltage controller for detecting a voltage associated with the open-circuit voltage of the ballast and regulating the duty ratio or pulse density or switching frequency of the switching control signal in response to the results of the detection, thereby controlling the open-circuit voltage.

Abstract translation: 控制镇流器的开路电压的镇流器。 镇流器包括用于接收AC输入电压并将AC输入电压转换成功率因数校正的DC电压的功率因数校正器（PFC）; DC / DC转换器，其连接到PFC并且具有放置在DC / DC转换器的低压侧的开关，用于根据开关的开关操作将PFC的DC电压转换为DC输出电压; 连接到DC / DC转换器的开关的控制端子的控制器，用于发送开关控制信号以控制开关; 以及开路电压控制器，用于检测与镇流器的开路电压相关联的电压，并响应于检测结果调节开关控制信号的占空比或脉冲密度或开关频率，从而控制开路 电路电压。

公开(公告)号：US08692478B2

公开(公告)日：2014-04-08

申请号：US13242123

申请日：2011-09-23

Applicant: Lizhi Xu ,  Weiqiang Zhang ,  Jianping Ying

Inventor： Lizhi Xu ,  Weiqiang Zhang ,  Jianping Ying

IPC: H05B41/16

CPC classification number: H05B33/0821 ,  H05B33/0809

Abstract: The invention provides a current balancing circuit, which includes a plurality of light-emitting diode assemblies; an AC power generator for providing currents required by the light-emitting diode assemblies; and a plurality of current-equaling elements connected to the AC power generator, each of which is connected to a common mode connecting two light-emitting diode assemblies for balancing currents of the light-emitting diode assemblies.

Abstract translation: 本发明提供了一种电流平衡电路，其包括多个发光二极管组件; AC发电机，用于提供发光二极管组件所需的电流; 以及连接到AC发电机的多个电流均衡元件，每个电流均衡元件连接到连接两个用于平衡发光二极管组件的电流的发光二极管组件的共模。