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1. 发明授权

US07453246B2 Adaptive PWM pulse positioning for fast transient response 有权
标题翻译：自适应PWM脉冲定位，用于快速瞬态响应
公开(公告)号：US07453246B2
公开(公告)日：2008-11-18
申请号：US11383878
申请日：2006-05-17
申请人： Weihong Qiu , Robert H. Isham , Zhixiang Liang
发明人： Weihong Qiu , Robert H. Isham , Zhixiang Liang
IPC分类号： G05F1/56
CPC分类号： H02M3/156 , H02M3/33507
摘要： An adaptive pulse positioning system for a voltage converter providing an output voltage, the system including a PWM generation circuit, a sensor, and a pulse positioning circuit. The PWM generation circuit generates a PWM signal with PWM pulses for controlling the output voltage of the voltage controller. The sensor senses an output load condition of the voltage converter and provides a load signal indicative thereof. The pulse positioning circuit adaptively positions the PWM pulses based on the load signal. A method of adaptively positioning PWM pulses that are used to control an output voltage of a voltage regulator including generating a series of PWM pulses based on a clock signal, sensing an output load condition, and adaptively shifting the series of PWM pulses based on the output load condition.
摘要翻译：一种用于提供输出电压的电压转换器的自适应脉冲定位系统，该系统包括PWM生成电路，传感器和脉冲定位电路。 PWM生成电路生成PWM信号，PWM脉冲用于控制电压控制器的输出电压。传感器感测电压转换器的输出负载状态，并提供指示其的负载信号。脉冲定位电路根据负载信号自适应地定位PWM脉冲。一种自适应地定位用于控制电压调节器的输出电压的PWM脉冲的方法，包括基于时钟信号产生一系列PWM脉冲，感测输出负载条件，以及基于输出自适应地移位一系列PWM脉冲负载条件。

2. 发明授权

US07868600B2 Adaptive PWM pulse positioning for fast transient response 有权
标题翻译：自适应PWM脉冲定位，用于快速瞬态响应
公开(公告)号：US07868600B2
公开(公告)日：2011-01-11
申请号：US12273441
申请日：2008-11-18
申请人： Weihong Qiu , Robert H. Isham , Zhixiang Liang , Thomas Szepesi
发明人： Weihong Qiu , Robert H. Isham , Zhixiang Liang , Thomas Szepesi
IPC分类号： G05F1/56
CPC分类号： H02M3/33507 , H02M3/156
摘要： An adaptive pulse positioning system for a voltage converter including an adjustable ramp generator, a pulse generator circuit, and a sense and adjust circuit. The adjustable ramp generator has an adjust input and provides a periodic ramp voltage having an adjustable magnitude based on an adjust signal provided to the adjust input. The pulse generator circuit receives the ramp voltage and generates a pulse signal with control pulses for controlling the output voltage of the voltage controller based on the ramp voltage. The sense and adjust circuit senses an output load transient and provides the adjust signal to the adjust input of the ramp generator to adaptively shift the pulse signal in time in response to the output load transient without adding pulses to the pulse signal.
摘要翻译：一种用于电压转换器的自适应脉冲定位系统，包括可调斜率发生器，脉冲发生器电路以及感测和调节电路。可调斜坡发生器具有调节输入，并且基于提供给调节输入的调整信号提供具有可调幅度的周期性斜坡电压。脉冲发生器电路接收斜坡电压，并产生具有控制脉冲的脉冲信号，用于根据斜坡电压控制电压控制器的输出电压。感测和调节电路检测输出负载瞬变，并将调整信号提供给斜坡发生器的调整输入端，以响应于输出负载瞬变自适应地移动脉冲信号，而不向脉冲信号添加脉冲。

3. 发明申请

US20090072807A1 ADAPTIVE PWM PULSE POSITIONING FOR FAST TRANSIENT RESPONSE 有权
标题翻译：自适应PWM脉冲定位快速瞬态响应
公开(公告)号：US20090072807A1
公开(公告)日：2009-03-19
申请号：US12273441
申请日：2008-11-18
申请人： Weihong Qiu , Robert H. Isham , Zhixiang Liang , Thomas Szepesi
发明人： Weihong Qiu , Robert H. Isham , Zhixiang Liang , Thomas Szepesi
IPC分类号： G05F1/565
CPC分类号： H02M3/33507 , H02M3/156
摘要： An adaptive pulse positioning system for a voltage converter including an adjustable ramp generator, a pulse generator circuit, and a sense and adjust circuit. The adjustable ramp generator has an adjust input and provides a periodic ramp voltage having an adjustable magnitude based on an adjust signal provided to the adjust input. The pulse generator circuit receives the ramp voltage and generates a pulse signal with control pulses for controlling the output voltage of the voltage controller based on the ramp voltage. The sense and adjust circuit senses an output load transient and provides the adjust signal to the adjust input of the ramp generator to adaptively shift the pulse signal in time in response to the output load transient without adding pulses to the pulse signal.
摘要翻译：一种用于电压转换器的自适应脉冲定位系统，包括可调斜率发生器，脉冲发生器电路以及感测和调节电路。可调斜坡发生器具有调节输入，并且基于提供给调节输入的调整信号提供具有可调幅度的周期性斜坡电压。脉冲发生器电路接收斜坡电压，并产生具有控制脉冲的脉冲信号，用于根据斜坡电压控制电压控制器的输出电压。感测和调节电路检测输出负载瞬变，并将调整信号提供给斜坡发生器的调整输入端，以响应于输出负载瞬变自适应地移动脉冲信号，而不向脉冲信号添加脉冲。

4. 发明授权

US07489121B2 Compensation offset adjustment scheme for fast reference voltage transitioning 有权
标题翻译：用于快速参考电压转换的补偿偏移调整方案
公开(公告)号：US07489121B2
公开(公告)日：2009-02-10
申请号：US11395909
申请日：2006-03-31
申请人： Weihong Qiu , Robert H. Isham , Zhixiang Liang
发明人： Weihong Qiu , Robert H. Isham , Zhixiang Liang
IPC分类号： G05F1/40
CPC分类号： H02M3/156
摘要： A PWM control circuit for a voltage regulator including a compensation network, a ramp generator providing a ramp voltage, an offset adjust circuit and a comparator circuit. The compensation network senses the output voltage, receives a reference voltage, and outputs a compensation voltage. The offset adjust circuit adjusts a selected one of the ramp voltage and the compensation voltage based on the reference voltage. The comparator circuit compares the compensation voltage with the ramp voltage and provides a PWM signal for controlling the output voltage. The offset adjust circuit may generate an offset voltage based on the reference voltage and a gain G of the voltage regulator. The offset adjust circuit may subtract the offset voltage from either the ramp voltage or the compensation voltage to provide an adjusted voltage to the comparator circuit.
摘要翻译：一种用于包括补偿网络的电压调节器的PWM控制电路，提供斜坡电压的斜坡发生器，偏移调整电路和比较器电路。补偿网络感测输出电压，接收参考电压，并输出补偿电压。偏移调整电路根据参考电压调整斜坡电压和补偿电压中选择的一个。比较器电路将补偿电压与斜坡电压进行比较，并提供用于控制输出电压的PWM信号。偏移调整电路可以基于参考电压和电压调节器的增益G产生偏移电压。偏移调整电路可以从斜坡电压或补偿电压中减去偏移电压，以向比较器电路提供经调整的电压。

5. 发明授权

US07453250B2 PWM controller with dual-edge modulation using dual ramps 有权
标题翻译： PWM控制器采用双路斜坡调制
公开(公告)号：US07453250B2
公开(公告)日：2008-11-18
申请号：US11318081
申请日：2005-12-23
申请人： Weihong Qiu , Zhixiang Liang , Robert H. Isham , Ben A. Dowlat , Rami Abou-Hamze
发明人： Weihong Qiu , Zhixiang Liang , Robert H. Isham , Ben A. Dowlat , Rami Abou-Hamze
IPC分类号： G05F1/00
CPC分类号： H02M3/1584 , H02M3/1588 , H02M2001/0025 , H02M2003/1566 , Y02B70/1466
摘要： A dual-edge modulation controller including first and second ramp circuits, first and second comparators, an error amplifier and pulse control logic. The first ramp circuit provides a leading-edge ramp synchronous with a clock. The error amplifier compares a feedback signal with a reference and provides a compensation signal. The first comparator compares the leading-edge ramp with the compensation signal and asserts a set signal. The second ramp circuit provides a trailing-edge ramp that begins ramping when the set signal is asserted. The second comparator compares the trailing-edge ramp with the compensation signal and asserts a reset signal. The pulse control logic asserts a PWM signal when the set signal is asserted and de-asserts the PWM signal when the reset signal is asserted. The controller may control multiple phases with current balancing. The slew rate of the ramps may be adjusted based on the number of PWM signal asserted.
摘要翻译：包括第一和第二斜坡电路，第一和第二比较器，误差放大器和脉冲控制逻辑的双边缘调制控制器。第一个斜坡电路提供与时钟同步的前沿斜坡。误差放大器将反馈信号与参考值进行比较，并提供补偿信号。第一个比较器将前沿斜坡与补偿信号进行比较，并置位一个置位信号。第二斜坡电路提供一个后沿斜坡，当设定信号被断言时开始斜坡。第二个比较器将后沿斜坡与补偿信号进行比较，并确定复位信号。当置位信号置位时，脉冲控制逻辑置位PWM信号，并在复位信号置位时取消置位PWM信号。控制器可以通过电流平衡控制多个相。斜坡的转换速率可以根据断言的PWM信号的数量进行调整。

6. 发明申请

US20070013356A1 PWM controller with dual-edge modulation using dual ramps 有权
标题翻译： PWM控制器采用双路斜坡调制
公开(公告)号：US20070013356A1
公开(公告)日：2007-01-18
申请号：US11318081
申请日：2005-12-23
申请人： Weihong Qiu , Zhixiang Liang , Robert Isham , Ben Dowlat , Rami Abou-Hamze
发明人： Weihong Qiu , Zhixiang Liang , Robert Isham , Ben Dowlat , Rami Abou-Hamze
IPC分类号： G05F1/00
CPC分类号： H02M3/1584 , H02M3/1588 , H02M2001/0025 , H02M2003/1566 , Y02B70/1466
摘要： A dual-edge modulation controller including first and second ramp circuits, first and second comparators, an error amplifier and pulse control logic. The first ramp circuit provides a leading-edge ramp synchronous with a clock. The error amplifier compares a feedback signal with a reference and provides a compensation signal. The first comparator compares the leading-edge ramp with the compensation signal and asserts a set signal. The second ramp circuit provides a trailing-edge ramp that begins ramping when the set signal is asserted. The second comparator compares the trailing-edge ramp with the compensation signal and asserts a reset signal. The pulse control logic asserts a PWM signal when the set signal is asserted and de-asserts the PWM signal when the reset signal is asserted. The controller may control multiple phases with current balancing. The slew rate of the ramps may be adjusted based on the number of PWM signal asserted.
摘要翻译：包括第一和第二斜坡电路，第一和第二比较器，误差放大器和脉冲控制逻辑的双边缘调制控制器。第一个斜坡电路提供与时钟同步的前沿斜坡。误差放大器将反馈信号与参考值进行比较，并提供补偿信号。第一个比较器将前沿斜坡与补偿信号进行比较，并置位一个置位信号。第二斜坡电路提供一个后沿斜坡，当设定信号被断言时开始斜坡。第二个比较器将后沿斜坡与补偿信号进行比较，并确定复位信号。当置位信号置位时，脉冲控制逻辑置位PWM信号，并在复位信号置位时取消置位PWM信号。控制器可以通过电流平衡控制多个相。斜坡的转换速率可以根据断言的PWM信号的数量进行调整。

7. 发明申请

US20070109825A1 ADAPTIVE PWM PULSE POSITIONING FOR FAST TRANSIENT RESPONSE 有权
标题翻译：自适应PWM脉冲定位快速瞬态响应
公开(公告)号：US20070109825A1
公开(公告)日：2007-05-17
申请号：US11383878
申请日：2006-05-17
申请人： Weihong Qiu , Robert Isham , Zhixiang Liang
发明人： Weihong Qiu , Robert Isham , Zhixiang Liang
IPC分类号： H02M1/12
CPC分类号： H02M3/156 , H02M3/33507
摘要： An adaptive pulse positioning system for a voltage converter providing an output voltage, the system including a PWM generation circuit, a sensor, and a pulse positioning circuit. The PWM generation circuit generates a PWM signal with PWM pulses for controlling the output voltage of the voltage controller. The sensor senses an output load condition of the voltage converter and provides a load signal indicative thereof. The pulse positioning circuit adaptively positions the PWM pulses based on the load signal. A method of adaptively positioning PWM pulses that are used to control an output voltage of a voltage regulator including generating a series of PWM pulses based on a clock signal, sensing an output load condition, and adaptively shifting the series of PWM pulses based on the output load condition.
摘要翻译：一种用于提供输出电压的电压转换器的自适应脉冲定位系统，该系统包括PWM生成电路，传感器和脉冲定位电路。 PWM生成电路生成PWM信号，PWM脉冲用于控制电压控制器的输出电压。传感器感测电压转换器的输出负载状态，并提供指示其的负载信号。脉冲定位电路根据负载信号自适应地定位PWM脉冲。一种自适应地定位用于控制电压调节器的输出电压的PWM脉冲的方法，包括基于时钟信号产生一系列PWM脉冲，感测输出负载条件，以及基于输出自适应地移位一系列PWM脉冲负载条件。

8. 发明申请

US20070108954A1 Compensation offset adjustment scheme for fast reference voltage transitioning 有权
标题翻译：用于快速参考电压转换的补偿偏移调整方案
公开(公告)号：US20070108954A1
公开(公告)日：2007-05-17
申请号：US11395909
申请日：2006-03-31
申请人： Weihong Qiu , Robert Isham , Zhixiang Liang
发明人： Weihong Qiu , Robert Isham , Zhixiang Liang
IPC分类号： G05F1/00
CPC分类号： H02M3/156
摘要： A PWM control circuit for a voltage regulator including a compensation network, a ramp generator providing a ramp voltage, an offset adjust circuit and a comparator circuit. The compensation network senses the output voltage, receives a reference voltage, and outputs a compensation voltage. The offset adjust circuit adjusts a selected one of the ramp voltage and the compensation voltage based on the reference voltage. The comparator circuit compares the compensation voltage with the ramp voltage and provides a PWM signal for controlling the output voltage. The offset adjust circuit may generate an offset voltage based on the reference voltage and a gain G of the voltage regulator. The offset adjust circuit may subtract the offset voltage from either the ramp voltage or the compensation voltage to provide an adjusted voltage to the comparator circuit.
摘要翻译：一种用于包括补偿网络的电压调节器的PWM控制电路，提供斜坡电压的斜坡发生器，偏移调整电路和比较器电路。补偿网络感测输出电压，接收参考电压，并输出补偿电压。偏移调整电路根据参考电压调整斜坡电压和补偿电压中选择的一个。比较器电路将补偿电压与斜坡电压进行比较，并提供用于控制输出电压的PWM信号。偏移调整电路可以基于参考电压和电压调节器的增益G产生偏移电压。偏移调整电路可以从斜坡电压或补偿电压中减去偏移电压，以向比较器电路提供经调整的电压。

9. 发明申请

US20110103103A1 POWER SUPPLY WITH LOW POWER CONSUMPTION HICCUP STANDBY OPERATION 有权
标题翻译：低功耗便携式电源供电
公开(公告)号：US20110103103A1
公开(公告)日：2011-05-05
申请号：US12788045
申请日：2010-05-26
申请人： Xiaodong Zhan , David B. Bell , Zhixiang Liang , Xiangxu Yu
发明人： Xiaodong Zhan , David B. Bell , Zhixiang Liang , Xiangxu Yu
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0032 , Y02B70/16
摘要： A power supply including a converter, a capacitance, and a hiccup control module. The converter converts an input voltage to both an output voltage and a preliminary standby voltage when in its active state. The capacitance stores the preliminary standby voltage which is charged to an upper voltage level when the converter is in its active state and which is discharged to a lower voltage level when the converter is in its inactive state. During the standby mode, the hiccup control module operates the converter in hiccup mode by toggling between placing the converter into its inactive state when the preliminary standby voltage is charged to the upper voltage level and placing the converter into its active state when the preliminary standby voltage is discharged to the lower voltage level. The hiccup mode of the power supply eliminates a need for a separate standby converter.
摘要翻译：包括转换器，电容和打嗝控制模块的电源。当处于其激活状态时，转换器将输入电压转换为输出电压和初步备用电压。电容存储当转换器处于其有效状态时被充电到较高电压电平并且当转换器处于其非活动状态时被放电到较低电压电平的初级备用电压。在待机模式期间，打嗝控制模块通过在将初级备用电压充电到较高电压电平并将转换器置于其激活状态时将转换器置于其非活动状态之间切换来操作转换器，当初始待机电压放电到较低的电压电平。电源的打嗝模式不需要单独的备用转换器。

10. 发明授权

US6038156A Power inverter with improved heat sink configuration 失效
标题翻译：电源逆变器具有改进的散热器配置
公开(公告)号：US6038156A
公开(公告)日：2000-03-14
申请号：US094422
申请日：1998-06-09
申请人： Haroon Inam , Doris Cronyn , Edo P. Gebenini , Zhixiang Liang , Bernie E. Pringle , Gerald E. Rosebrough , Raymond L. Zheng
发明人： Haroon Inam , Doris Cronyn , Edo P. Gebenini , Zhixiang Liang , Bernie E. Pringle , Gerald E. Rosebrough , Raymond L. Zheng
IPC分类号： H02M7/00 , H02M3/24 , H01L23/24 , H02M7/538 , H05K7/20
CPC分类号： H02M7/003 , H01L2924/0002
摘要： An inverter for producing AC power from a DC source is disclosed. The inverter uses a transformer and switches to convert current from a battery or other DC source into AC power that can be used to power household appliances or other devices. The primary windings of the transformer are directly connected to a heat sink to which the switches are mounted with electrical connection between the transformer and switches being via the heat sink. The connection point on the heat sink for the primary windings of the transformer is spatially removed from the locations of the switches to facilitate heat dissipation at both locations. The primary windings of the transformer are formed from a tape or ribbon-like conductor having a cross-sectional area that allows the construction of a relatively compact transformer while also providing primary conductors of relatively large cross section. Use of tape-like conductors in the primary windings significantly simplifies the interconnection of the end of the primary winding both to a bus bar and the heat sink. Since the tape-like conductor of the transformer can be bolted directly to the flat surface of a bus bar or heat sink without using an intermediate terminal or lug, and since a relatively large contact area is established, ohmic contact resistance is minimized thus reducing the generation of heat. In one embodiment, a wedge configuration is used to mount the switches of the primary windings to the heat sink. The mounting wedge includes two flexible plate-like sections that hold both the tab and the body of the switch against the adjoining side wall of the heat sink.
摘要翻译：公开了一种用于从DC源产生AC电力的逆变器。逆变器使用变压器并切换将电池或其他直流电源的电流转换成可用于家用电器或其他设备的交流电源。变压器的初级绕组直接连接到散热器，开关安装在散热器上，变压器和开关之间的电气连接通过散热器。用于变压器初级绕组的散热器上的连接点在空间上从开关的位置移除，以便于两个位置的散热。变压器的初级绕组由带或带状导体形成，该带或带状导体具有允许构造相对紧凑的变压器的横截面积，同时还提供相对大的横截面的主导体。在初级绕组中使用带状导体可以显着简化初级绕组末端与母线和散热片的互连。由于变压器的带状导体可以直接用螺栓连接到母线或散热器的平坦表面，而不使用中间端子或凸耳，并且由于建立了相对较大的接触面积，所以欧姆接触电阻最小化，从而减小了发热。在一个实施例中，使用楔形配置将初级绕组的开关安装到散热器。安装楔包括两个柔性板状部分，其将开关的突片和主体抵靠散热器的相邻侧壁保持。

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