专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08368368B2 System and method for improving inductor current sensing accuracy of a DC/DC voltage regulator 失效
标题翻译：提高直流/直流稳压器电感电流检测精度的系统和方法
公开(公告)号：US08368368B2
公开(公告)日：2013-02-05
申请号：US12329147
申请日：2008-12-05
申请人： Weihong Qiu , Chris T. Burket , Gustavo James Mehas
发明人： Weihong Qiu , Chris T. Burket , Gustavo James Mehas
IPC分类号： G05F1/40
CPC分类号： H02M3/156 , H02M2001/0009
摘要： The DC/DC voltage converter comprises at least one switching transistor. An inductor is connected to the at least one switching transistor. A pulse width modulation circuit generates control signals to at least one switching transistor responsive to a current control signal. A current sensor connected in parallel with the inductor senses current passing through the inductor. The sensor comprises a resistor and an NTC capacitor connected in series with the resistor. Circuitry for monitoring the voltage across the NTC capacitor generates the current control signal responsive to the monitored voltage.
摘要翻译： DC / DC电压转换器包括至少一个开关晶体管。电感器连接到至少一个开关晶体管。脉冲宽度调制电路根据电流控制信号向至少一个开关晶体管产生控制信号。与电感器并联连接的电流传感器感测通过电感器的电流。传感器包括与电阻器串联连接的电阻器和NTC电容器。用于监测NTC电容器两端的电压的电路根据监测的电压产生电流控制信号。

2. 发明授权

US07764053B2 System and method to calculate initial duty cycle 失效
标题翻译：计算初始占空比的系统和方法
公开(公告)号：US07764053B2
公开(公告)日：2010-07-27
申请号：US11955212
申请日：2007-12-12
申请人： Gustavo James Mehas , Wei Chen , Bruce L. Inn
发明人： Gustavo James Mehas , Wei Chen , Bruce L. Inn
IPC分类号： G05F1/652 , G05F1/656
CPC分类号： H02M1/36 , H02M3/156 , H02M2001/0022 , Y10S323/901
摘要： A system and method for determining an initial duty cycle for startup of a voltage regulator involves generating a first current source responsive to an input voltage to the voltage regulator and generating a second current source responsive to an output voltage of the voltage regulator. A first capacitor is charged using the first current source responsive to a duty cycle of a PWM signal of the voltage regulator to a first voltage. A second capacitor is charged to a second voltage responsive to a period of the PWM signal of the voltage regulator. The initial duty cycle for startup of the voltage regulator is established as the duty cycle of the PWM signal when the first voltage is substantially equal to the second voltage.
摘要翻译：用于确定用于启动电压调节器的初始占空比的系统和方法包括响应于对电压调节器的输入电压产生第一电流源，并响应于电压调节器的输出电压产生第二电流源。响应于电压调节器的PWM信号的占空比，使用第一电流源对第一电容器充电至第一电压。响应于电压调节器的PWM信号的周期，第二电容器被充电到第二电压。当第一电压基本上等于第二电压时，用于启动电压调节器的初始占空比被建立为PWM信号的占空比。

3. 发明授权

US08233256B2 System and method for programming and controlling over current trip point limits in voltage regulators 有权
标题翻译：用于编程和控制电压调节器中过流跳闸点限制的系统和方法
公开(公告)号：US08233256B2
公开(公告)日：2012-07-31
申请号：US12032328
申请日：2008-02-15
申请人： Gustavo James Mehas , Atul Wokhlu , Naveen Jain , Xiaole Chen
发明人： Gustavo James Mehas , Atul Wokhlu , Naveen Jain , Xiaole Chen
IPC分类号： H02H3/08 , H02H9/02
CPC分类号： H02M1/32 , H02M3/155 , H02M2001/0012 , H02M2001/0022
摘要： A system and method for controlling an over current protection trip point for a voltage regulator includes an input for receiving a monitored operating parameter of the voltage regulator. Control logic responsive to this input generates a digital current control signal. A digital to analog controller converts the digital current control signal to an analog current control signal and this analog current control signal is used for controlling a current source for generating a current that establishes the over current protection trip point of the voltage regulator.
摘要翻译：用于控制电压调节器的过电流保护跳变点的系统和方法包括用于接收监控的电压调节器的操作参数的输入端。响应于该输入的控制逻辑产生数字电流控制信号。数字到模拟控制器将数字电流控制信号转换为模拟电流控制信号，该模拟电流控制信号用于控制电流源以产生建立电压调节器的过流保护跳变点的电流。

4. 发明授权

US08120336B2 Switching regulator circuit, system, and method for providing input current measurement without a dedicated input current sense element 有权
标题翻译：开关稳压器电路，系统和方法，用于提供输入电流测量，而无需专门的输入电流检测元件
公开(公告)号：US08120336B2
公开(公告)日：2012-02-21
申请号：US12875938
申请日：2010-09-03
申请人： Gustavo James Mehas , Naveen Jain , Jayant Vivrekar , Michael Jason Houston
发明人： Gustavo James Mehas , Naveen Jain , Jayant Vivrekar , Michael Jason Houston
IPC分类号： G05F1/613
CPC分类号： H02M3/1588 , H02M2001/0009 , H02M2001/0012 , Y02B70/1466
摘要： A synchronous regulator includes a controller coupled to receive a reference signal and a feedback signal from the regulator and being operable to provide a pulse width modulation (PWM) signal at its output. The regulator includes at least one gate driver coupled to receive the PWM signal and includes a synchronous output switch having a phase node therebetween controlled by the gate driver, and also including regulator input current measurement circuitry. The regulator input current measurement circuitry includes a circuit that provides a signal representative of at least one phase node timing parameter. A sensing circuit is operable to sense inductor or output current provided by the regulator. A calculation circuit is coupled to receive the signal representative of the phase node timing parameters and the inductor or output current and is operable to determine the input current from the phase node timing parameters and the inductor or output current.
摘要翻译：同步调节器包括控制器，其被耦合以从调节器接收参考信号和反馈信号，并且可操作以在其输出端提供脉宽调制（PWM）信号。调节器包括耦合以接收PWM信号的至少一个栅极驱动器，并且包括具有由栅极驱动器控制的相位节点的同步输出开关，并且还包括调节器输入电流测量电路。调节器输入电流测量电路包括提供表示至少一个相位节点定时参数的信号的电路。感测电路可操作以感测由调节器提供的电感器或输出电流。耦合计算电路以接收表示相位节点定时参数和电感器或输出电流的信号，并且可操作以从相位节点定时参数和电感器或输出电流确定输入电流。

5. 发明申请

US20080278123A1 Switching regulator circuit, system, and method for providing input current measurement without a dedicated input current sense element 失效
标题翻译：开关稳压器电路，系统和方法，用于提供输入电流测量，而无需专门的输入电流检测元件
公开(公告)号：US20080278123A1
公开(公告)日：2008-11-13
申请号：US12080263
申请日：2008-03-31
申请人： Gustavo James Mehas , Naveen Jain , Jayant Vivrekar , Jason Houston
发明人： Gustavo James Mehas , Naveen Jain , Jayant Vivrekar , Jason Houston
IPC分类号： G05F1/00
CPC分类号： H02M3/1588 , H02M2001/0009 , H02M2001/0012 , Y02B70/1466
摘要： A synchronous regulator includes a controller coupled to receive a reference signal and a feedback signal from the regulator operable to provide a pulse width modulation (PWM) signal at its output. The regulator includes at least one gate driver coupled to receive the PWM signal, and a synchronous output switch having a phase node there between controlled by the gate driver, and regulator input current measurement circuitry. The regulator input current measurement circuitry comprises a circuit operable for providing a signal representative of at least one phase node timing parameter, a sensing circuit operable for sensing inductor or output current provided by the regulator, and a calculation circuit coupled to receive the signal representative of the phase node timing parameters and the inductor or output current and is operable to determine the input current.
摘要翻译：同步调节器包括耦合以接收参考信号的控制器和来自调节器的反馈信号，其可操作以在其输出端提供脉宽调制（PWM）信号。调节器包括耦合以接收PWM信号的至少一个栅极驱动器，以及具有由栅极驱动器控制的相位节点和调节器输入电流测量电路的同步输出开关。调节器输入电流测量电路包括可用于提供表示至少一个相位节点定时参数的信号的电路，可操作用于感测由调节器提供的电感器或输出电流的感测电路，以及耦合以接收代表相位节点定时参数和电感器或输出电流，并且可操作以确定输入电流。

6. 发明授权

US08638532B2 System and method for programming and controlling over current trip point limits in voltage regulators 有权
标题翻译：用于编程和控制电压调节器中过流跳闸点限制的系统和方法
公开(公告)号：US08638532B2
公开(公告)日：2014-01-28
申请号：US13532084
申请日：2012-06-25
申请人： Gustavo James Mehas , Atul Wokhlu , Naveen Jain , Xiaole Chen
发明人： Gustavo James Mehas , Atul Wokhlu , Naveen Jain , Xiaole Chen
IPC分类号： H02H7/00 , H02H9/00
CPC分类号： H02M1/32 , H02M3/155 , H02M2001/0012 , H02M2001/0022
摘要： A system and method for controlling an over current protection trip point for a voltage regulator includes an input for receiving a monitored operating parameter of the voltage regulator. Control logic responsive to this input generates a digital current control signal. A digital to analog controller converts the digital current control signal to an analog current control signal and this analog current control signal is used for controlling a current source for generating a current that establishes the over current protection trip point of the voltage regulator.
摘要翻译：用于控制电压调节器的过电流保护跳变点的系统和方法包括用于接收监控的电压调节器的操作参数的输入端。响应于该输入的控制逻辑产生数字电流控制信号。数字到模拟控制器将数字电流控制信号转换为模拟电流控制信号，该模拟电流控制信号用于控制电流源以产生建立电压调节器的过流保护跳变点的电流。

7. 发明授权

US08339173B2 Enable pin using programmable hysteresis improvement 失效
标题翻译：使能可编程滞后改进引脚
公开(公告)号：US08339173B2
公开(公告)日：2012-12-25
申请号：US13044251
申请日：2011-03-09
申请人： Gustavo James Mehas , Chun Cheung , Brandon D. Day
发明人： Gustavo James Mehas , Chun Cheung , Brandon D. Day
IPC分类号： H03K3/00
CPC分类号： H02M3/1588 , H02M2001/0012 , H02M2001/0038 , Y02B70/1466
摘要： An apparatus for providing programmable hysteresis control using an enable pin of a device is disclosed. An enable pin is configured to receive an input signal to enable and disable an associated device responsive to the input signal. A current sink is attached to the enable pin and is responsive to circuitry that disables the current sink responsive to application of the input signal at a first voltage level and enables the current sink responsive to application of the input signal at a second voltage level.
摘要翻译：公开了一种使用设备的使能引脚提供可编程滞回控制的装置。启用引脚被配置为接收输入信号以响应于输入信号来启用和禁用相关联的设备。电流吸收器连接到使能引脚，并且响应于电路，其响应于在第一电压电平处施加输入信号而禁用电流宿，并且能够使电流宿响应于第二电压电平上的输入信号的应用。

8. 发明授权

US08159276B2 Method for using digital PLL in a voltage regulator 失效
标题翻译：在电压调节器中使用数字PLL的方法
公开(公告)号：US08159276B2
公开(公告)日：2012-04-17
申请号：US12564466
申请日：2009-09-22
申请人： Gustavo James Mehas , Sandeep Agarwal , Jayant Vivrekar , Xiaole Chen
发明人： Gustavo James Mehas , Sandeep Agarwal , Jayant Vivrekar , Xiaole Chen
IPC分类号： H03L7/06
CPC分类号： H03L7/0992 , H03L7/085 , H03L7/093
摘要： A circuit comprises a digital phase locked loop for generating a synchronization signal and a voltage regulator for providing regulated output voltage responsive to the synchronization signal from the digital phase locked loop.
摘要翻译：电路包括用于产生同步信号的数字锁相环和用于响应于来自数字锁相环的同步信号来提供调节的输出电压的电压调节器。

9. 发明授权

US07791324B2 Switching regulator without a dedicated input current sense element 失效
标题翻译：开关稳压器没有专用的输入电流检测元件
公开(公告)号：US07791324B2
公开(公告)日：2010-09-07
申请号：US12080263
申请日：2008-03-31
申请人： Gustavo James Mehas , Naveen Jain , Jayant Vivrekar , Michael Jason Houston
发明人： Gustavo James Mehas , Naveen Jain , Jayant Vivrekar , Michael Jason Houston
IPC分类号： G05F1/00
CPC分类号： H02M3/1588 , H02M2001/0009 , H02M2001/0012 , Y02B70/1466
摘要： A synchronous regulator includes a controller coupled to receive a reference signal and a feedback signal from the regulator operable to provide a pulse width modulation (PWM) signal at its output. The regulator includes at least one gate driver coupled to receive the PWM signal, and a synchronous output switch having a phase node there between controlled by the gate driver, and regulator input current measurement circuitry. The regulator input current measurement circuitry comprises a circuit operable for providing a signal representative of at least one phase node timing parameter, a sensing circuit operable for sensing inductor or output current provided by the regulator, and a calculation circuit coupled to receive the signal representative of the phase node timing parameters and the inductor or output current and is operable to determine the input current.
摘要翻译：同步调节器包括耦合以接收参考信号的控制器和来自调节器的反馈信号，其可操作以在其输出端提供脉宽调制（PWM）信号。调节器包括耦合以接收PWM信号的至少一个栅极驱动器，以及具有由栅极驱动器控制的相位节点和调节器输入电流测量电路的同步输出开关。调节器输入电流测量电路包括可用于提供表示至少一个相位节点定时参数的信号的电路，可操作用于感测由调节器提供的电感器或输出电流的感测电路，以及耦合以接收代表相位节点定时参数和电感器或输出电流，并且可操作以确定输入电流。

10. 发明授权

US07592846B2 Method for using digital PLL in a voltage regulator 失效
标题翻译：在电压调节器中使用数字PLL的方法
公开(公告)号：US07592846B2
公开(公告)日：2009-09-22
申请号：US11951565
申请日：2007-12-06
申请人： Gustavo James Mehas , Sandeep Agarwal , Jayant Vivrekar , Xiaole Chen
发明人： Gustavo James Mehas , Sandeep Agarwal , Jayant Vivrekar , Xiaole Chen
IPC分类号： H03L7/06
CPC分类号： H03L7/0992 , H03L7/085 , H03L7/093
摘要： A circuit comprises a digital phase locked loop for generating a synchronization signal and a voltage regulator for providing regulated output voltage responsive to the synchronization signal from the digital phase locked loop.
摘要翻译：电路包括用于产生同步信号的数字锁相环和用于响应于来自数字锁相环的同步信号来提供调节的输出电压的电压调节器。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式