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    • 1. 发明授权
    • Thermal protection circuit and electronic device using the same
    • 热保护电路和电子设备使用相同
    • US08605403B2
    • 2013-12-10
    • US12770735
    • 2010-04-30
    • Hong-Hao KangZhi-Wei WangChi-Hung Lin
    • Hong-Hao KangZhi-Wei WangChi-Hung Lin
    • H02H5/04
    • H02H5/042H02H7/20
    • A thermal protection circuit to protect an electronic device from over-heat comprises a temperature sensor, a hysteresis comparator and a switch circuit. The temperature sensor senses internal temperature of the electronic device and output an internal temperature signal with voltage. The hysteresis comparator outputs a power-off signal when the voltage of the internal temperature signal is lower than a low voltage threshold representing an a determined temperature, or outputs a power-on signal when the voltage of the internal temperature signal is higher than a high voltage threshold representing a restarting temperature. The switch circuit stops transmitting power signals to the electronic device in response to the power-off signal, or continues to transmit the power signals to the electronic device in response to the power-on signal.
    • 用于保护电子设备免受过热的热保护电路包括温度传感器,磁滞比较器和开关电路。 温度传感器检测电子设备的内部温度,并输出带有电压的内部温度信号。 当内部温度信号的电压低于表示确定的温度的低电压阈值时,滞后比较器输出断电信号,或者当内部温度信号的电压高于高电平时输出通电信号 表示重启温度的电压阈值。 开关电路响应于断电信号停止向电子设备发送功率信号,或者响应于通电信号继续向电子设备发送功率信号。
    • 2. 发明授权
    • Performance scaling device, processor having the same, and performance scaling method thereof
    • 性能缩放设备,具有相同性能的处理器及其性能缩放方法
    • US08589718B2
    • 2013-11-19
    • US12881190
    • 2010-09-14
    • Chi-Hung LinPi-Cheng HsiaoTay-Jyi LinGin-Kou Ma
    • Chi-Hung LinPi-Cheng HsiaoTay-Jyi LinGin-Kou Ma
    • G06F1/00
    • G06F1/3203G06F1/324G06F1/3296Y02D10/126Y02D10/172
    • A performance scaling device, a processor having the same, and a performance scaling method thereof are provided. The performance scaling device includes an adaptive voltage scaling unit, a latency prediction unit, and a variable-latency datapath. The adaptive voltage scaling unit generates a plurality of operation voltages and transmits the operation voltages to the variable-latency datapath. The variable-latency datapath operates with different latencies according to the operation voltages and generates an operation latency. The latency prediction unit receives the operation latency and a system latency tolerance and generates a voltage scaling signal for the adaptive voltage scaling unit according to the operation latency and the system latency tolerance. The adaptive voltage scaling unit outputs and scales the operation voltages thereof according to the voltage scaling signal.
    • 提供了一种性能缩放装置,具有该性能缩放装置的处理器及其性能缩放方法。 性能缩放装置包括自适应电压缩放单元,等待时间预测单元和可变延迟数据路径。 自适应电压缩放单元产生多个操作电压并将操作电压发送到可变延迟数据路径。 可变延迟数据路径根据操作电压运行不同的延迟,并产生运行延迟。 延迟预测单元接收操作等待时间和系统等待时间容差,并且根据操作等待时间和系统等待时间容差产生用于自适应电压缩放单元的电压缩放信号。 自适应电压调整单元根据电压缩放信号输出并缩放其工作电压。
    • 3. 发明申请
    • Transceiver Front-End
    • 收发器前端
    • US20120058736A1
    • 2012-03-08
    • US13292501
    • 2011-11-09
    • Jan Roelof WestraRudy J. van de PlasscheChi-Hung Lin
    • Jan Roelof WestraRudy J. van de PlasscheChi-Hung Lin
    • H04B1/44
    • H04B1/583
    • A transceiver front-end provides an interface between a transmission medium and transmitter, and between a transmission medium and receiver. The transceiver front-end includes a hybrid circuit, a high-pass filter, and a gain stage, that permits the reduction or the complete elimination of buffer amplifiers. Buffer amplifiers can be eliminated because the hybrid circuit and/or the high-pass filter are adapted so that they can be directly connected to each other, without a loss in circuit performance. Furthermore, the high-pass filter and/or the gain stage are also adapted so they can be directly connected. As such, the transceiver front-end can be constructed using all passive components, reducing or eliminating excess heat generation.
    • 收发器前端提供传输介质和发射器之间以及传输介质和接收器之间的接口。 收发器前端包括混合电路,高通滤波器和增益级,允许减少或完全消除缓冲放大器。 可以消除缓冲放大器,因为混合电路和/或高通滤波器被适配成使得它们可以彼此直接连接,而不会损失电路性能。 此外,高通滤波器和/或增益级也适于直接连接。 因此,收发器前端可以使用所有无源组件构建,从而减少或消除多余的发热。
    • 10. 发明申请
    • Low noise charge pump for PLL-based frequence synthesis
    • 低噪声电荷泵,用于基于PLL的频率合成
    • US20060119438A1
    • 2006-06-08
    • US11002497
    • 2004-12-02
    • Chi-Hung Lin
    • Chi-Hung Lin
    • H03L7/00
    • H03L7/1974H03L7/0896H03L7/095Y10S331/02
    • A low noise charge pump for use in a PLL-based frequency synthesizer. The charge pump includes a timing controller and a plurality of charge-pump circuits. The timing controller receives a reference signal to generate a plurality of enable signals having non-overlapping phases, where the frequency of each enable, signal is equal to that of the reference signal divided by the number of the enable signals. The charge-pump circuits are coupled in parallel and operate in a time-interleaved manner according to the enable signals. In response to a first and second control signal, the charge-pump circuits are able to generate respective output currents which are multiplexed together to form a charge-pump current.
    • 一种低噪声电荷泵,用于基于PLL的频率合成器。 电荷泵包括定时控制器和多个电荷泵电路。 定时控制器接收参考信号以产生具有非重叠相位的多个使能信号,其中每个使能信号的频率等于参考信号的频率除以使能信号的数量。 电荷泵电路并联耦合并根据使能信号以时间交替的方式工作。 响应于第一和第二控制信号,电荷泵电路能够产生被多路复用在一起以形成电荷泵电流的各自的输出电流。