施密特電路的時(shí)序特征及門級(jí)設(shè)計(jì)
THE SEQUENTIAL CHARACTERISTIC OF SCHMITT CIRCUIT AND ITS DESIGN AT GATE LEVEL
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摘要: 該文根據(jù)施密特電路對(duì)輸入信號(hào)具有兩種檢測(cè)閾值的工作特點(diǎn),提出了施密特電路與用作存貯元件的觸發(fā)器之間具有相同的時(shí)序特征。利用時(shí)序電路的設(shè)計(jì)方法,本文系統(tǒng)地研究了基于集成門電路的各種施密特電路,并發(fā)現(xiàn)了一些新的設(shè)計(jì)方案。PSPICE模擬證明所設(shè)計(jì)的電路具有理想的施密特電路特性。
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關(guān)鍵詞:
- 施密特電路; 時(shí)序特征; 電路設(shè)計(jì)
Abstract: Based on the working characteristic of Schmitt circuits which have two detection thresholds to input signals, this paper proposes that Schmitt circuits have the same sequen-tial characteristic as flip-flops which are used as memory units. With the design procedure of sequential circuits, varieties of Schmitt circuits based on integrated gate circuits are systemati-cally investigated, and some new designs are found. PSPICE simulations prove that the circuits designed in this paper have ideal characteristic of Schmitt circuits. -
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