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    • 1. 发明公开
    • Low-power relaxation oscillator and RFID tag using the same
    • Schwachstrom-Kippschwingungsoszillator和RFID-Etikett damit
    • EP2194645A2
    • 2010-06-09
    • EP09172282.7
    • 2009-10-06
    • Electronics and Telecommunications Research Institute
    • Kang, Tae YoungPark, Kyung HwanHyun, Seok BongKang, Tae WookKim, Kyung SooKim, Sung EunKim, Jung BumMyoung, Hey JinPark, Hyung IILim, In GiChoi, Byoung GunHyoung, Chang HeeHwang, Jung HwanKang, Sung Weon
    • H03K3/03H03K3/0231
    • H03K3/03H03K3/0231
    • There is provided a low-power relaxation oscillator (100). The low-power relaxation oscillator may include: a constant current generation unit (110) generating a current having a predetermined magnitude; a current varying unit (120) controlling the current generated from the constant current generation unit according to a clock control signal (CT1,CT2,CT3,CT4) to output the controlled current; a first controller (131) and a second controller (132) connected in parallel with output terminals of the current varying unit and passing or interrupting the current supplied from the current varying unit; a PMOS charging/discharging unit (140) arranged between an output terminal of the first controller (N1) and an output terminal of the second controller (N2); a first comparator (151) and a second comparator (152) connected to both ends of the PMOS charging/discharging unit (140), respectively, and each outputting a high or low level voltage upon receiving voltage charged in the PMOS charging/discharging unit (140); and a latch circuit (160) delaying the voltages output from the first and second comparators to output, oscillation signals (V 01 ,V 02 ).
    • 提供了一个低功率张弛振荡器(100)。 低功率弛豫振荡器可以包括:产生具有预定量值的电流的恒定电流产生单元(110); 电流变化单元,根据时钟控制信号(CT1,CT2,CT3,CT4)控制从恒定电流产生单元产生的电流,以输出受控电流; 与电流变化单元的输出端并联连接并通过或中断从电流变化单元提供的电流的第一控制器(131)和第二控制器(132); 布置在第一控制器(N1)的输出端和第二控制器(N2)的输出端之间的PMOS充电/放电单元(140); 分别连接到PMOS充电/放电单元(140)的两端的第一比较器(151)和第二比较器(152),并且在接收到在PMOS充电/放电单元(140)中充电的电压时,输出高电平或低电平电压 (140); 和锁存电路(160),延迟从第一和第二比较器输出的电压以输出振荡信号(V 01,V 02)。