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    • 1. 发明申请
    • DC/DC CONVERTER, POWER CONVERTER AND CONTROL METHOD THEREOF
    • DC / DC转换器,电源转换器及其控制方法
    • US20120250361A1
    • 2012-10-04
    • US13424387
    • 2012-03-20
    • Pei-Qing HUHong-Yuan JINHong-Jian GANJian-Ping YING
    • Pei-Qing HUHong-Yuan JINHong-Jian GANJian-Ping YING
    • H02M3/335
    • H02M3/33569H02M2001/0035H02M2001/0058Y02B70/1433Y02B70/1491Y02B70/16
    • A DC/DC converter, a power converter and a control method thereof are disclosed, where the DC/DC converter includes an output circuit having a load, a rectangular wave generator having a bridge arm, a resonant tank, a detection unit and a control unit. The bridge arm includes a first and a second switches connected each other. The detection unit detects a signal related to a state of the load. When the state of the load is a light-load or a no-load, the control unit controls ON/OFF state of the first and second switches by pulse width modulation mode to convert an input voltage into at least one rectangular wave for the resonant tank. A duty ratio of the first switch is within a first or second predetermined range, and a duty ratio of the second switch is complementary to the duty ratio of the first switch, whereby a voltage gain of the DC/DC converter is greater than 1.
    • 公开了一种DC / DC转换器,功率转换器及其控制方法,其中DC / DC转换器包括具有负载的输出电路,具有桥臂的矩形波发生器,谐振槽,检测单元和控制 单元。 桥臂包括彼此连接的第一和第二开关。 检测单元检测与负载状态有关的信号。 当负载状态为轻负载或无负载时,控制单元通过脉宽调制模式控制第一和第二开关的接通/断开状态,以将输入电压转换为至少一个矩形波用于谐振 坦克。 第一开关的占空比在第一或第二预定范围内,第二开关的占空比与第一开关的占空比互补,由此DC / DC转换器的电压增益大于1。
    • 2. 发明申请
    • DC/DC CONVERTER AND CONTROL METHOD THEREOF
    • DC / DC转换器及其控制方法
    • US20130176005A1
    • 2013-07-11
    • US13481058
    • 2012-05-25
    • Hong-Yuan JINPei-Qing HUHong-Jian GANJian-Ping YING
    • Hong-Yuan JINPei-Qing HUHong-Jian GANJian-Ping YING
    • G05F1/46
    • H02M3/00H02M3/155H02M3/335H02M2001/0035Y02B70/16
    • The DC/DC converter includes a power unit, an output detection unit, a control unit and a compensation unit. The output detection unit detects an output stage of the power unit. The control unit provides a driving signal based on the output stage for the power unit to control the operation of the power unit. When the power unit operates in an intermittent working mode, the compensation unit provides a compensation signal for the control unit, and the control unit adjusts the driving signal according to the compensation signal, so that during at least one duty cycle an output power of the power unit in the intermittent working mode is higher than an output power of the power unit at a switching moment from a normal mode (continuous working mode) to the intermittent working mode, thereby when the load is not changed, the average number of driving signals is reduced.
    • DC / DC转换器包括功率单元,输出检测单元,控制单元和补偿单元。 输出检测单元检测功率单元的输出级。 控制单元基于用于动力单元的输出级来提供驱动信号,以控制动力单元的操作。 当功率单元工作在间歇工作模式时,补偿单元为控制单元提供补偿信号,控制单元根据补偿信号调整驱动信号,使得在至少一个占空比期间,输出功率 间歇工作模式下的动力单元高于从正常模式(连续工作模式)到间歇工作模式的切换时刻的动力单元的输出功率,因此当负载未变化时,平均驱动信号数 降低了。
    • 4. 发明申请
    • POWER SWITCH SERIES CIRCUIT AND CONTROL METHOD THEREOF
    • 电源开关系列电路及其控制方法
    • US20130082762A1
    • 2013-04-04
    • US13421877
    • 2012-03-16
    • Hong-Jian GANJian-Ping YINGJie FUWei-Liang FUMing WANG
    • Hong-Jian GANJian-Ping YINGJie FUWei-Liang FUMing WANG
    • H03K17/60
    • H03K17/0828H02H7/222H03K17/107
    • The present invention provides a power switch series circuit and its control method. The power switch series circuit includes a plurality of series modules, a control module and a drive module. At least one series module has a power switch and a detection module, and the detection module includes a detection unit and an isolation unit, so as to detect the overvoltage and output a voltage detection signal based on the detected voltage. The control module receives the voltage detection signal and outputs the corresponding control signal. The drive module amplifies the control signal to drive each power switch to turn ON or turn OFF. The control module outputs the corresponding control signal to turn off each power switch when the overvoltage happens.
    • 本发明提供一种功率开关串联电路及其控制方法。 电源开关串联电路包括多个串联模块,一个控制模块和一个驱动模块。 至少一个串联模块具有电源开关和检测模块,检测模块包括检测单元和隔离单元,以便根据检测到的电压检测过电压并输出电压检测信号。 控制模块接收电压检测信号并输出​​相应的控制信号。 驱动模块放大控制信号以驱动每个电源开关打开或关闭。 当过电压发生时,控制模块输出相应的控制信号以关闭每个电源开关。
    • 6. 发明申请
    • RESONANCE CONVERTER AND SYNCHRONOUS RECTIFICATION DRIVING METHOD THEREOF
    • 谐振转换器及其同步整流驱动方法
    • US20080055942A1
    • 2008-03-06
    • US11780873
    • 2007-07-20
    • Hong-Shan TAOHong-Jian GanJian-Ping YING
    • Hong-Shan TAOHong-Jian GanJian-Ping YING
    • H02M3/315
    • H02M3/3376H02M3/33592Y02B70/1475Y02P80/112
    • A resonance converter and a synchronous rectification driving method thereof are provided. The resonance converter includes a switch circuit having at least two first switches, a resonance circuit having a resonance frequency, a transformer, and a full-wave rectification circuit having two second switches each of which has a drain and a source and generates a channel resistance voltage when a current flows through the drain and the source. The synchronous rectification driving method includes steps as follow. When an operating frequency of the resonance converter is less than the resonance frequency and the resonance converter is coupled to a heavy load, the channel resistance voltage is compared with a reference voltage for driving the second switches of the full-wave rectification circuit; and when the operating frequency of the resonance converter is not smaller than the resonance frequency, duplicated signals of signals used to drive the first switches are respectively used to drive the second switches of the full-wave rectification circuit.
    • 提供一种谐振变换器及其同步整流驱动方法。 谐振转换器包括具有至少两个第一开关的开关电路,具有谐振频率的谐振电路,变压器和具有两个第二开关的全波整流电路,每个开关具有漏极和源极,并产生沟道电阻 电流流过漏极和源极时的电压。 同步整流驱动方法包括以下步骤。 当谐振转换器的工作频率小于谐振频率并且谐振转换器耦合到重负载时,将沟道电阻电压与用于驱动全波整流电路的第二开关的参考电压进行比较; 并且当谐振转换器的工作频率不小于谐振频率时,用于驱动第一开关的信号的复制信号分别用于驱动全波整流电路的第二开关。
    • 9. 发明申请
    • DISCHARGE LAMP SYSTEM AND METHOD FOR CONTROLLING DISCHARGE LAMP
    • 放电灯系统和控制放电灯的方法
    • US20130026938A1
    • 2013-01-31
    • US13241318
    • 2011-09-23
    • Qi ZHANGWei-Qiang ZHANGJian-Ping YING
    • Qi ZHANGWei-Qiang ZHANGJian-Ping YING
    • H05B41/36H05B41/30
    • H05B41/288H05B41/38
    • A discharge lamp system includes a discharge lamp, a power source, a converter, a lamp state signal detection module and a controller. The power source provides a DC power. The converter converts the DC power into a current required by the discharge lamp. The lamp state signal detection module receives a lamp state signal and outputs a lamp state detection signal. The controller processes the lamp state detection signal and a given synchronization signal to generate an average lamp current signal and a pulse current signal, and then processes the average lamp current signal and the pulse current signal to generate a control signal. The controller performs current control of the discharge lamp through the converter according to the control signal. Furthermore, a method for controlling a discharge lamp is also disclosed herein.
    • 放电灯系统包括放电灯,电源,转换器,灯状态信号检测模块和控制器。 电源提供直流电源。 该转换器将直流功率转换成放电灯所需的电流。 灯状态信号检测模块接收灯状态信号并输出​​灯状态检测信号。 控制器处理灯状态检测信号和给定的同步信号以产生平均灯电流信号和脉冲电流信号,然后处理平均灯电流信号和脉冲电流信号以产生控制信号。 控制器根据控制信号通过转换器对放电灯进行电流控制。 此外,本文还公开了一种用于控制放电灯的方法。
    • 10. 发明申请
    • DISCHARGE LAMP SYSTEM AND CONTROLLING METHOD OF THE SAME
    • 放电灯系统及其控制方法
    • US20130020953A1
    • 2013-01-24
    • US13241247
    • 2011-09-23
    • Qi ZHANGWei-Qiang ZHANGJian-Ping YING
    • Qi ZHANGWei-Qiang ZHANGJian-Ping YING
    • H05B41/36H05B41/26
    • H05B41/2886H05B41/38Y02B20/202
    • A discharge lamp system includes a discharge lamp; a power supply device for providing DC input voltage and current; a converter connected to the discharge lamp and the power supply device for providing power for the discharge lamp; a DC input voltage detecting unit connected to the power supply device for detecting the DC input voltage; a DC input current detecting unit connected to the power supply device for detecting the DC input current; a lamp state detecting unit for detecting a signal responsive to the lamp state; a controller connected to the converter, the DC input voltage detecting unit, the DC input current detecting unit and the lamp state detecting unit for controlling the discharge lamp according to the signal responsive to the lamp state, the DC input voltage and the DC input current. A controlling method for the discharge lamp system is also disclosed herein.
    • 放电灯系统包括放电灯; 用于提供直流输入电压和电流的电源装置; 连接到放电灯的转换器和用于为放电灯提供电力的电源装置; 连接到电源装置的DC输入电压检测单元,用于检测DC输入电压; 连接到电源装置的直流输入电流检测单元,用于检测直流输入电流; 灯状态检测单元,用于检测响应于灯状态的信号; 连接到转换器的控制器,直流输入电压检测单元,直流输入电流检测单元和灯状态检测单元,用于根据响应于灯状态的信号,直流输入电压和直流输入电流来控制放电灯 。 本文还公开了放电灯系统的控制方法。