HIGH-VOLTAGE DIGITAL POWER AMPLIFIER WITH SINUSIOIDAL OUTPUT FOR RFID
    2.
    发明公开
    HIGH-VOLTAGE DIGITAL POWER AMPLIFIER WITH SINUSIOIDAL OUTPUT FOR RFID 审中-公开
    具有用于RFID的SINUSIOIDAL输出的高电压数字功率放大器

    公开(公告)号:EP3182585A1

    公开(公告)日:2017-06-21

    申请号:EP15199768.1

    申请日:2015-12-14

    申请人: Panthronics AG

    IPC分类号: H03F3/21 H03F3/195 H03M1/74

    摘要: A Digital power amplifier (13) to drive an RFID antenna (10) with a substantial sinusoidal output current (I) which digital power amplifier (13) comprises:
    an integrated circuit (IC2) with a first transmission output pin (15) and a second transmission output pin (16) to provide an output signal (17);
    an adaption circuit (14) of discrete components (C2a, C2b) connected to the first and second transmission output pin (15, 16) to adapt the output signal (17) and feed the substantial sinusoidal output current (1) with a transmission resonance frequency to the RFID antenna (10), wherein the integrated circuit (IC2) comprises:
    a digital control section (19) with a number ofN wave-forming contacts (20) to output a digital wave-forming bit combination of N bits with a clock frequency M-times the transmission resonance frequency;
    a number ofN driver blocks (21) each connected with a first contact (22) to one of the wave-forming contacts (20) and a number of N/2 of them connected with a second contact to the first transmission output pin (15) and the other number of N/2 of them connected with their second contact to the second transmission output pin (16), which driver blocks (21) are built to provide increments of the substantial sinusoidal output current (I) to the first and second transmission output pin (15, 16).

    摘要翻译: 一种数字功率放大器(13),用于驱动具有基本正弦输出电流(I)的RFID天线(10),数字功率放大器(13)包括:具有第一传输输出引脚(15)的集成电路(IC2) 第二传输输出引脚(16),以提供输出信号(17); - 连接到第一和第二传输输出引脚(15,16)的分立元件(C2a,C2b)的自适应电路(14),以适应输出信号(17)并馈送基本正弦输出电流(1) 所述集成电路(IC2)包括:数字控制部分(19),所述数字控制部分具有多个N个波形形成触点(20),以将N位的数字波形组合输出到所述RFID天线 时钟频率是传输谐振频率的M倍; 多个N个驱动块(21),每个驱动块(21)与第一触点(22)连接到其中一个波形触点(20),并且其中的N / 2个触点块与第二触点连接到第一传输输出引脚 ),并且其中N / 2个的其中另外N / 2个与它们的第二触点连接到第二变速器输出引脚(16),所述驱动器块(21)被构建为向第一和第二变速器输出引脚(16)提供基本正弦输出电流 第二传输输出引脚(15,16)。