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    • 4. 发明授权
    • Temperature coefficient factor circuit, semiconductor device, and radar device
    • 温度系数因子电路,半导体器件和雷达装置
    • US09395740B2
    • 2016-07-19
    • US14441246
    • 2012-11-07
    • Cristian Pavao-MoreiraBirama GoumballaDidier Salle
    • Cristian Pavao-MoreiraBirama GoumballaDidier Salle
    • H01L35/00G05F3/26G05F3/24
    • G05F3/262G05F3/24G05F3/245
    • A temperature coefficient factor circuit is provided which generates a current which varies with temperature according to a programmable temperature coefficient factor. The temperature coefficient factor circuit comprises a first current source providing a first current with a positive temperature coefficient factor, a second current source providing a second current with a negative temperature coefficient factor, a common terminal, a first programmable amplifying current mirror, a second programmable amplifying current mirror and a current output circuit. The first programmable amplifying current mirror provides in dependence of a control signal ctrl an amplified first current to the common terminal. The second programmable amplifying current mirror conducts away in dependence of the control signal ctrl an amplified second current from the common terminal. The current output circuit provides the output current based on a difference current between the amplified first current and the amplified second current.
    • 提供一种温度系数因子电路,其产生根据可编程温度系数因子随温度变化的电流。 温度系数因子电路包括提供具有正温度系数因子的第一电流的第一电流源,提供具有负温度系数因子的第二电流的第二电流源,公共端,第一可编程放大电流镜,第二可编程 放大电流镜和电流输出电路。 第一个可编程放大电流镜根据控制信号控制放大的第一电流到公共端。 第二可编程放大电流镜根据控制信号控制从公共端子放大的第二电流。 电流输出电路基于放大的第一电流和放大的第二电流之间的差电流提供输出电流。
    • 8. 发明申请
    • WIRELESS COMMUNICATION UNIT, INTEGRATED CIRCUIT AND METHOD FOR BIASING A POWER AMPLIFIER
    • 无线通信单元,集成电路和放大功率放大器的方法
    • US20100184389A1
    • 2010-07-22
    • US12063425
    • 2005-08-09
    • Frederic FraysseGilles MontoriolDidier Salle
    • Frederic FraysseGilles MontoriolDidier Salle
    • H04B1/02
    • H04B1/04
    • A wireless communication unit (100) comprises a transmitter (120) arranged to transmit an envelope modulated signal. The transmitter (120) comprises a radio frequency power amplifier (124) operably coupled to a logarithmic detector (210, 310) and a bias control circuit (126) arranged to set a direct current bias level of the radio frequency power amplifier (124) via a bias signal. The logarithmic detector (210, 310) is arranged to detect the envelope modulated signal and provide the detected envelope modulated signal to the bias control circuit such that the bias signal applied to the radio frequency power amplifier (124) comprises both a direct current and a low frequency component based on the detected envelope modulated signal. In this manner, the present invention supports a tradeoff of linearity for additional efficiency, as well as providing more margin on adjacent channel power levels, whilst maintaining a good overall power added efficiency.
    • 无线通信单元(100)包括被布置为发射包络调制信号的发射机(120)。 发射机(120)包括可操作地耦合到对数检测器(210,310)的射频功率放大器(124)和被布置成设置射频功率放大器(124)的直流偏置电平的偏置控制电路(126) 通过偏置信号。 对数检测器(210,310)被布置成检测包络调制信号,并将检测到的包络调制信号提供给偏置控制电路,使得施加到射频功率放大器(124)的偏置信号包括直流电和 基于检测到的包络调制信号的低频分量。 以这种方式,本发明支持对于附加效率的线性的折衷,并且在相邻信道功率电平上提供更多的余量,同时保持良好的整体功率附加效率。
    • 10. 发明授权
    • Integrated circuit comprising frequency generation circuitry for controlling a frequency source
    • 集成电路,包括用于控制频率源的频率产生电路
    • US08731502B2
    • 2014-05-20
    • US13145125
    • 2010-02-10
    • Didier SalleOlivier DoareStephane Dugalleix
    • Didier SalleOlivier DoareStephane Dugalleix
    • H04B1/18
    • G01S7/35G01S7/032G01S13/34G01S13/931G01S2013/9325H03C3/0925H03L7/1976
    • An integrated circuit comprises frequency generation circuitry for controlling a frequency source for use in an automotive radar system. The frequency generation circuitry comprises low-path modulation circuitry arranged to generate a first, low-path control signal for providing lower frequency modulation of the frequency source, the low-path modulation circuitry comprising a Phase Locked Loop (PLL) arranged to generate the low-path control signal for controlling the frequency source and a fractional-N divider located within a feedback loop of the PLL, and frequency pattern control module operably coupled to the fractional-N divider and arranged to control the fractional-N divider, by way of at least a first, lower frequency pattern control signal. The frequency generation circuitry further comprises high-path modulation circuitry arranged to generate a second, high-path control signal for providing higher frequency modulation of the frequency source.
    • 集成电路包括用于控制在汽车雷达系统中使用的频率源的频率产生电路。 频率产生电路包括低通道调制电路,其被布置为产生用于提供频率源的较低频率调制的第一低路径控制信号,该低通道调制电路包括被配置为产生低电平的锁相环(PLL) 用于控制频率源的PATH控制信号和位于PLL的反馈环路内的分数N分频器,以及频率模式控制模块,其可操作地耦合到分数N分频器,并被布置成通过以下方式控制分数N分频器 至少第一低频模式控制信号。 频率产生电路还包括被设置为产生用于提供频率源的更高频率调制的第二高路径控制信号的高路径调制电路。