公开(公告)号：US08581565B2

公开(公告)日：2013-11-12

申请号：US13453534

申请日：2012-04-23

申请人： Zhao Tang ,  Jia Deng ,  Yuanping Zhou ,  Hongliang Lu ,  Mark Jutras

发明人： Zhao Tang ,  Jia Deng ,  Yuanping Zhou ,  Hongliang Lu ,  Mark Jutras

IPC分类号： G05F1/575 ,  H02M1/36

CPC分类号： H02M3/335

摘要： A DC/DC converter for use in power supply applications employing multiple parallel-connected converters employs a digital controller referenced to the secondary or output side of an isolation boundary and having non-isolated direct connections to secondary side components. The controller directly monitors output voltage and output current and uses feedback control techniques to precisely control these values in a desired manner. The DC/DC converter can implement so-called “droop” current sharing with increased accuracy arising from the secondary-side digital control, so that a desired balanced sharing of current across multiple converters can be achieved. The converter uses calibration establish accurate set points, and any of a variety of additional functions/features to attain operational goals.

摘要翻译： 使用多个并联转换器的电源应用中使用的DC / DC转换器采用参考隔离边界的次级或输出侧的数字控制器，并具有与次级侧组件的非隔离直接连接。 控制器直接监视输出电压和输出电流，并使用反馈控制技术以期望的方式精确控制这些值。 DC / DC转换器可以实现所谓的“下降”电流共享，从次级侧数字控制引起的精度提高，从而可以实现跨多个转换器的期望的电流平衡共享。 转换器使用校准建立准确的设定点，以及各种附加功能/功能中的任何一个来实现操作目标。

公开(公告)号：US08901774B2

公开(公告)日：2014-12-02

申请号：US13044965

申请日：2011-03-10

申请人： Jiajia Yan ,  Yuanping Zhou ,  Huajun Jian ,  Mark Jutras

发明人： Jiajia Yan ,  Yuanping Zhou ,  Huajun Jian ,  Mark Jutras

IPC分类号： H02J3/14 ,  H02J1/00 ,  H02J3/00 ,  H02M3/157 ,  H02M1/00

CPC分类号： H02M3/157 ,  H02J1/08 ,  H02J2001/008 ,  H02M2001/008 ,  Y10T307/406 ,  Y10T307/707

摘要： A power supply system includes a digital power manager and multiple power blocks each conveying regulated power to a respective load. The power blocks include the power part of non-isolated DC/DC converters, signal sampling and conversion circuits to provide analog voltage signal representing output voltage, output current, temperature, etc., and driving circuits to receive pulse width modulation (PWM) signals and drive switching devices. Closed-loop voltage control and protection functions for the power blocks are integrated into the digital power. The digital power manager includes a non-volatile memory containing registers, including a digital power manager configuration register, a power block set-up register, and a power block monitor register, as well as a user-definable space. The digital power manager programs and monitors operation of each power block, and may also include a user interface, such as an I2C interface, for receiving programming data from a host user system and send monitoring data thereto.

摘要翻译： 电源系统包括数字功率管理器和多个功率块，每个功率块将调节的功率传送到相应的负载。 功率块包括非隔离DC / DC转换器的功率部分，信号采样和转换电路，以提供表示输出电压，输出电流，温度等的模拟电压信号，以及驱动电路以接收脉宽调制（PWM）信号 并驱动切换设备。 功率块的闭环电压控制和保护功能集成到数字电源中。 数字功率管理器包括包含寄存器的非易失性存储器，包括数字功率管理器配置寄存器，功率块建立寄存器和功率块监视寄存器，以及用户可定义的空间。 数字功率管理器对每个功率块的操作进行编程和监视，并且还可以包括诸如I2C接口的用户接口，用于从主机用户系统接收编程数据并向其发送监控数据。

公开(公告)号：US20110234000A1

公开(公告)日：2011-09-29

申请号：US13044965

申请日：2011-03-10

申请人： Jiajia Yan ,  Yuanping Zhou ,  Huajun Jian ,  Mark Jutras

发明人： Jiajia Yan ,  Yuanping Zhou ,  Huajun Jian ,  Mark Jutras

IPC分类号： H02J1/00

CPC分类号： H02M3/157 ,  H02J1/08 ,  H02J2001/008 ,  H02M2001/008 ,  Y10T307/406 ,  Y10T307/707

摘要： A power supply system includes a digital power manager and multiple power blocks each conveying regulated power to a respective load. The power blocks include the power part of non-isolated DC/DC converters, signal sampling and conversion circuits to provide analog voltage signal representing output voltage, output current, temperature, etc., and driving circuits to receive pulse width modulation (PWM) signals and drive switching devices. Closed-loop voltage control and protection functions for the power blocks are integrated into the digital power. The digital power manager includes a non-volatile memory containing registers, including a digital power manager configuration register, a power block set-up register, and a power block monitor register, as well as a user-definable space. The digital power manager programs and monitors operation of each power block, and may also include a user interface, such as an I2C interface, for receiving programming data from a host user system and send monitoring data thereto.

摘要翻译： 电源系统包括数字功率管理器和多个功率块，每个功率块将调节的功率传送到相应的负载。 功率块包括非隔离DC / DC转换器的功率部分，信号采样和转换电路，以提供表示输出电压，输出电流，温度等的模拟电压信号，以及驱动电路以接收脉宽调制（PWM）信号 并驱动切换设备。 功率块的闭环电压控制和保护功能集成到数字电源中。 数字功率管理器包括包含寄存器的非易失性存储器，包括数字功率管理器配置寄存器，功率块建立寄存器和功率块监视寄存器，以及用户可定义的空间。 数字功率管理器对每个功率块的操作进行编程和监视，并且还可以包括诸如I2C接口的用户接口，用于从主机用户系统接收编程数据并向其发送监控数据。

公开(公告)号：US08395329B2

公开(公告)日：2013-03-12

申请号：US12868965

申请日：2010-08-26

申请人： Mark Jutras ,  Mark Masera ,  Scott Moore

发明人： Mark Jutras ,  Mark Masera ,  Scott Moore

IPC分类号： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B41/16 ,  H05B41/24

CPC分类号： H05B33/083 ,  H05B33/0851

摘要： A power supply for an LED lamp has a set of coupled coils, primary-side power circuitry including a converter power switch for conducting input power, and secondary-side power circuitry including a dimming power switch. Power control circuitry includes converter control circuitry which generates a converter control signal for the converter power switch to maintain a desired undimmed level of lamp current at a normal operating value of a lamp voltage. Dimming control circuitry generates a dimming control signal for the dimming power switch to pulse-width modulate the lamp current at a duty cycle corresponding to a desired dimming. Operation of the converter control circuitry is modified during dimming to prevent an automatic increase of the lamp voltage in response to a decrease in lamp current, avoiding undesirable overshooting of the lamp current and providing more accurate and effective control over dimming operation.

摘要翻译： 用于LED灯的电源具有一组耦合线圈，初级侧电源电路包括用于传导输入功率的转换器电源开关和包括调光功率开关的次级侧电源电路。 功率控制电路包括转换器控制电路，其产生用于转换器功率开关的转换器控制信号，以在灯电压的正常工作值下保持期望的未被限制的灯电流水平。 调光控制电路产生用于调光功率开关的调光控制信号，以对应于期望的调光的占空比脉冲宽度调制灯电流。 在调光期间改变转换器控制电路的操作，以防止灯电压响应于灯电流的减小而自动增加，避免不期望的灯电流过冲，并提供对调光操作的更精确和有效的控制。

公开(公告)号：US20110057573A1

公开(公告)日：2011-03-10

申请号：US12868965

申请日：2010-08-26

申请人： Mark Jutras ,  Mark Masera ,  Scott Moore

发明人： Mark Jutras ,  Mark Masera ,  Scott Moore

IPC分类号： H05B37/02

CPC分类号： H05B33/083 ,  H05B33/0851

摘要： A power supply for an LED lamp has a set of coupled coils, primary-side power circuitry including a converter power switch for conducting input power, and secondary-side power circuitry including a dimming power switch. Power control circuitry includes converter control circuitry which generates a converter control signal for the converter power switch to maintain a desired undimmed level of lamp current at a normal operating value of a lamp voltage. Dimming control circuitry generates a dimming control signal for the dimming power switch to pulse-width modulate the lamp current at a duty cycle corresponding to a desired dimming. Operation of the converter control circuitry is modified during dimming to prevent an automatic increase of the lamp voltage in response to a decrease in lamp current, avoiding undesirable overshooting of the lamp current and providing more accurate and effective control over dimming operation.

摘要翻译： 用于LED灯的电源具有一组耦合线圈，初级侧电源电路包括用于传导输入功率的转换器电源开关，以及包括调光功率开关的次级侧电源电路。 功率控制电路包括转换器控制电路，其产生用于转换器功率开关的转换器控制信号，以在灯电压的正常工作值下保持期望的未被限制的灯电流水平。 调光控制电路产生用于调光功率开关的调光控制信号，以对应于期望的调光的占空比脉冲宽度调制灯电流。 在调光期间改变转换器控制电路的操作，以防止灯电压响应于灯电流的减小而自动增加，避免不期望的灯电流过冲，并提供对调光操作的更精确和有效的控制。