| 三值TTL施密特电路的研究 |
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| 引用本文： | 杭国强,吴训威.三值TTL施密特电路的研究[J].电子与信息学报,1997,19(2):245-250. |
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| 作者姓名： | 杭国强 吴训威 |
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| 作者单位： | 杭州大学电子工程系，杭州大学电子工程系 杭州 310028，杭州 310028 |
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| 摘 要： | 本文通过对施密特电路的跳阈分析,指出在二值TTL施密特电路中实现该一功能的核心部件为阈值可控的差动电流开关。根据三值TTL电路有两个信号检测阈值的特点,本文设计了有二次跳阈反应的三值TTL施密特电路。PSPICE模拟证明了设计的电路具有理想的施密特电路功能。
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| 关 键 词： | 施密特电路 多值逻辑 TTL电路 |
| 收稿时间： | 1995-9-27 |
| 修稿时间： | 1996-6-20 |
THE RESEARCH ON TERNARY TTL SCHMITT CIRCUITS |
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| Hang Guoqiang,Wu Xunwei.THE RESEARCH ON TERNARY TTL SCHMITT CIRCUITS[J].Journal of Electronics & Information Technology,1997,19(2):245-250. |
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| Authors: | Hang Guoqiang Wu Xunwei |
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| Affiliation: | Department of Electronic Engineering, Hangzhou University, Hangzhou 310028 |
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| Abstract: | By analyzing the threshold-jumping of Schmitt circuits, this paper indicates that the core element realizing this function in binary TTL Schmitt circuits is the differential current switch with controllable threshold value. Based on the characteristic having two kinds sigal-detection threshold in thernary TTL circuits, a ternary TTL Schmitt circuits having twice reactions of threshold-jumping is designed. The simulation with PSPICE proves that the designed circuit has ideal function of Schmitt circuits. |
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| Keywords: | Schmitt circuit Multiple-valued logic TTL circuit |
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