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公开(公告)号：US20160191196A1
公开(公告)日：2016-06-30
申请号：US14588267
申请日：2014-12-31
CPC分类号： H04Q11/0066 , H01S5/0428 , H04B10/502 , H04B10/504 , H04Q2011/0033 , H04Q2011/0035 , H04Q2011/0086
摘要： An optical signal module including a driver and an optical signal module. The driver includes a differential pair configured to receive and process an input signal to create a drive signal. A modulation current source provides a modulation current to the differential pair. One or more termination resistors connected to the differential pair for impedance matching. A first switch, responsive to a first control signal, maintains charge on a charge storage device. The optical signal module includes an optical signal generator arranged between a supply voltage node and a bias current node. The optical signal generator receives the drive signal and generates an optical signal representing the input signal. A second switch is between a supply voltage node the bias current node. The second switch, responsive to second control signal, selectively establishes a short between the supply voltage node the bias current node.
摘要翻译： 包括驱动器和光信号模块的光信号模块。 驱动器包括配置为接收和处理输入信号以产生驱动信号的差分对。 调制电流源向差分对提供调制电流。 连接到差分对的一个或多个终端电阻用于阻抗匹配。 响应于第一控制信号的第一开关在电荷存储装置上维持电荷。 光信号模块包括布置在电源电压节点和偏置电流节点之间的光信号发生器。 光信号发生器接收驱动信号并产生表示输入信号的光信号。 第二个开关是电源节点之间的偏置电流节点。 响应于第二控制信号的第二开关选择性地在电源电压节点之间建立偏置电流节点之间的短路。
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公开(公告)号：US20140111114A1
公开(公告)日：2014-04-24
申请号：US14139725
申请日：2013-12-23
IPC分类号： H05B37/02
CPC分类号： H05B37/02 , H05B33/086
摘要： A system is disclosed to automatically establish proper biasing for light sources in a color mixed projection system having multiple light sources which are active at the same time. Responsive to a feedback signal, a single DC-DC converter generates the bias voltage for the light sources. Comparators compare a headroom signal for each light source to a reference value to generate comparator output signals. The comparator output signals are processed by a channel selector and a digital filter/DAC module. The channel selector controls a switch to selectively provide and combine a headroom signal with an output of the digital filter/DAC module to create the feedback signal. By monitoring each headroom value, the bias voltage is adjusted, based on the feedback signal, until every headroom signal reaches the reference value thereby achieving sufficient biasing for every active light source in the color mixed projection system.
摘要翻译： 公开了一种在具有同时有效的多个光源的彩色混合投影系统中自动建立光源的适当偏置的系统。 响应于反馈信号，单个DC-DC转换器产生用于光源的偏置电压。 比较器将每个光源的余量信号与参考值进行比较，以生成比较器输出信号。 比较器输出信号由通道选择器和数字滤波器/ DAC模块进行处理。 通道选择器控制开关以选择性地提供和组合上部空间信号与数字滤波器/ DAC模块的输出以产生反馈信号。 通过监视每个净空值，基于反馈信号调整偏置电压，直到每个净空信号达到参考值，从而为彩色混合投影系统中的每个有源光源实现足够的偏置。
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公开(公告)号：US09385606B2
公开(公告)日：2016-07-05
申请号：US14094785
申请日：2013-12-02
发明人： Cristiano Bazzani , Fabio Gozzini
IPC分类号： H02M3/158
CPC分类号： H02M3/1582
摘要： A reconfigurable DC-DC converter including a controller is disclosed which automatically adjusts the mode of operation (buck mode or boost mode) depending on the system requirements and is able to achieve the maximum efficiency and the lowest inductance current. The method of switching between buck and boost mode allows the converter to operate to 100% duty cycle for buck mode and 0% duty cycle for boost mode. This maximizes efficiency since the buck-boost mode of operation is eliminated and improves the stability and reliability of the system. A converter output voltage is processed and compared to a control voltage to generate buck and boost comparator output signals. The buck and boost comparator output signals are provided to control logic, which generates switch control signals, which are provided to the DC-DC converter to establish buck mode, boost mode, or pass-through mode.
摘要翻译： 公开了一种包括控制器的可重新配置的DC-DC转换器，其根据系统要求自动调节操作模式（降压模式或升压模式），并且能够实现最大效率和最低电感电流。 在降压和升压模式之间切换的方法允许转换器在降压模式下工作在100％占空比，对于升压模式则为0％占空比。 由于降低升压操作模式被消除并且提高了系统的稳定性和可靠性，因此最大化效率。 A转换器输出电压被处理并与控制电压进行比较，以产生降压和升压比较器输出信号。 降压和升压比较器输出信号被提供给控制逻辑，其产生开关控制信号，其提供给DC-DC转换器以建立降压模式，升压模式或直通模式。
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公开(公告)号：US09119241B2
公开(公告)日：2015-08-25
申请号：US14139725
申请日：2013-12-23
CPC分类号： H05B37/02 , H05B33/086
摘要： A system is disclosed to automatically establish proper biasing for light sources in a color mixed projection system having multiple light sources which are active at the same time. Responsive to a feedback signal, a single DC-DC converter generates the bias voltage for the light sources. Comparators compare a headroom signal for each light source to a reference value to generate comparator output signals. The comparator output signals are processed by a channel selector and a digital filter/DAC module. The channel selector controls a switch to selectively provide and combine a headroom signal with an output of the digital filter/DAC module to create the feedback signal. By monitoring each headroom value, the bias voltage is adjusted, based on the feedback signal, until every headroom signal reaches the reference value thereby achieving sufficient biasing for every active light source in the color mixed projection system.
摘要翻译： 公开了一种在具有同时有效的多个光源的彩色混合投影系统中自动建立光源的适当偏置的系统。 响应于反馈信号，单个DC-DC转换器产生用于光源的偏置电压。 比较器将每个光源的余量信号与参考值进行比较，以生成比较器输出信号。 比较器输出信号由通道选择器和数字滤波器/ DAC模块进行处理。 通道选择器控制开关以选择性地提供和组合上部空间信号与数字滤波器/ DAC模块的输出以产生反馈信号。 通过监视每个净空值，基于反馈信号调整偏置电压，直到每个净空信号达到参考值，从而为彩色混合投影系统中的每个有源光源实现足够的偏置。
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5.发明申请公开(公告)号：US20140152272A1
公开(公告)日：2014-06-05
申请号：US14094785
申请日：2013-12-02
发明人： Cristiano Bazzani , Fabio Gozzini
IPC分类号： H02M3/04
CPC分类号： H02M3/1582
摘要： A reconfigurable DC-DC converter including a controller is disclosed which automatically adjusts the mode of operation (buck mode or boost mode) depending on the system requirements and is able to achieve the maximum efficiency and the lowest inductance current. The method of switching between buck and boost mode allows the converter to operate to 100% duty cycle for buck mode and 0% duty cycle for boost mode. This maximizes efficiency since the buck-boost mode of operation is eliminated and improves the stability and reliability of the system. A converter output voltage is processed and compared to a control voltage to generate buck and boost comparator output signals. The buck and boost comparator output signals are provided to control logic, which generates switch control signals, which are provided to the DC-DC converter to establish buck mode, boost mode, or pass-through mode.
摘要翻译： 公开了一种包括控制器的可重新配置的DC-DC转换器，其根据系统要求自动调节操作模式（降压模式或升压模式），并且能够实现最大效率和最低电感电流。 在降压和升压模式之间切换的方法允许转换器在降压模式下工作在100％占空比，对于升压模式则为0％占空比。 由于降低升压操作模式被消除并且提高了系统的稳定性和可靠性，因此最大化效率。 A转换器输出电压被处理并与控制电压进行比较，以产生降压和升压比较器输出信号。 降压和升压比较器输出信号被提供给控制逻辑，其产生开关控制信号，其提供给DC-DC转换器以建立降压模式，升压模式或直通模式。
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