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    • 3. 发明申请
    • WIRELESS COMMUNICATION APPARATUS AND POWER-SUPPLY APPARATUS
    • 无线通信设备和电源设备
    • US20100120475A1
    • 2010-05-13
    • US12614529
    • 2009-11-09
    • Hirotada TANIUCHIShigeo KusunokiTetsuo KimuraAkihito KatoKazuhiko Saito
    • Hirotada TANIUCHIShigeo KusunokiTetsuo KimuraAkihito KatoKazuhiko Saito
    • H04B1/38
    • H02M3/07H02J7/345
    • A wireless communication apparatus includes a power-supply apparatus configured to supply electric power to a load that is intermittently operated by using a battery as a power supply; and a control unit configured to control the power-supply apparatus, wherein the power-supply apparatus includes a capacitor; a switching unit capable of selectively forming a first path through which charging is performed from the battery to the capacitor and a second path through which the battery is connected in series with the capacitor, and wherein the control unit controls the switching unit so that the first path is formed during a period in which the load is idle and the second path is formed during a period in which the load is not idle, and thereby supplies the voltage of the sum of the battery voltage and the charged voltage of the capacitor in a non-idle period.
    • 无线通信装置包括:电源装置,被配置为向通过使用电池作为电源间歇地操作的负载提供电力; 以及控制单元,被配置为控制所述电源装置,其中所述电源装置包括电容器; 开关单元,其能够选择性地形成从电池到电容器进行充电的第一路径和电池与电容器串联连接的第二路径,并且其中控制单元控制开关单元,使得第一 在负载不空闲的时段期间形成路径,并且在负载不空闲的时段期间形成第二路径,从而将电池电压和电容器的充电电压的和的电压提供到 非空闲时段
    • 7. 发明授权
    • Semiconductor power amplifier integrated circuit
    • 半导体功率放大器集成电路
    • US5408198A
    • 1995-04-18
    • US231690
    • 1994-04-25
    • Shigeo Kusunoki
    • Shigeo Kusunoki
    • H03F3/195H03F3/193H03F3/60H03F3/16
    • H03F3/1935
    • A power amplifier is provided which operates in a quasi-microwave band between 0.8 GHz and 2 GHz with a high output, a small size and low power consumption. Junction type GaAs FETs are connected in a multi-stage manner to form an amplification circuit. An impedance matching/phase adjusting circuit is provided between the respective stages. An input impedance matching circuit, an output impedance matching circuit and bypass capacitors for a power source terminal are provided. Further, a gain control terminal and gate bias terminals for setting operating points of the JFETs are provided, thereby forming an entire arrangement as a semiconductor integrated circuit.
    • 提供功率放大器,其操作在0.8GHz和2GHz之间的准微波频带,具有高输出,小尺寸和低功耗。 结型GaAs FET以多级方式连接以形成放大电路。 在各个级之间设置阻抗匹配/相位调整电路。 提供输入阻抗匹配电路,输出阻抗匹配电路和用于电源端子的旁路电容器。 此外,提供用于设置JFET的工作点的增益控制端子和栅极偏置端子,从而形成作为半导体集成电路的整体布置。
    • 10. 发明授权
    • High frequency power amplifier and transmitter
    • 高频功率放大器和发射器
    • US07368985B2
    • 2008-05-06
    • US11227665
    • 2005-09-15
    • Shigeo Kusunoki
    • Shigeo Kusunoki
    • H03F3/38
    • H03F1/32H03F1/02H03F1/0205H03F1/025H03F2200/102H03F2200/78H03F2200/99
    • Disclosed is a digital signal processing portion that amplifies a high frequency signal resulting from digitally modulating data to be transmitted. An envelope detection portion (DETenv) generates the high frequency signal's envelope voltage. A comparator compares this envelope voltage with reference voltage Vref to generate two-state output. According to this two-state output, a power converter circuit converts power supply voltage Vbatt into power and outputs power supply voltage Vpa for a power amplifier. While the envelope voltage is larger than the reference voltage Vref, for example, the power supply voltage Vpa is changed from voltage V1 to V2 (larger than V1). In this manner, there are provided a high frequency power amplifier and a transmitter capable of decreasing distortion of transmission signals by means of a relatively simple technique.
    • 公开了一种数字信号处理部分,其放大由数字调制要发送的数据产生的高频信号。 包络检测部分(DETenv)产生高频信号的包络电压。 比较器将该包络电压与参考电压Vref进行比较,以产生双态输出。 根据该双态输出,电力转换电路将电源电压Vbatt变换成电力,并输出用于功率放大器的电源电压Vpa。 当包络电压大于参考电压Vref时,例如,电源电压Vpa从电压V 1变为V 2(大于V 1)。 以这种方式,提供了能够通过相对简单的技术减少发送信号的失真的高频功率放大器和发送器。