发明名称 |
INTEGRATED LOGIC CIRCUIT INCORPORATING A MODULE WHICH GENERATES A CONTROL SIGNAL THAT CANCELS SWITCHING NOISE |
摘要 |
<p>INTEGRATED LOGIC CIRCUIT INCORPORATING A MODULE WHICH GENERATES A CONTROL SIGNAL THAT CANCELS SWITCHING NOISE A circuit having reduced susceptibility to noise includes a plurality of drivers coupled to a current bus; each driver receives a logic signal on a control terminal and operates to pass a large current when the logic signal is a one and pass a small current when the logic signal is a zero; the current bus has a parasitic inductance which generates a noise signal when the logic signals switch; noise on the current bus is parasitically coupled to the control terminal of each driver; and a plurality of noise reducing modules respectively couple to the control terminal of each driver and a common bus. Each module that receives a switching logic signal generates a control signal on the common bus that is similar in shape and opposite in polarity to the noise signal; and each module that does not receive a switching logic signal couples the control signal from the common bus to the control terminal to which it is connected.</p> |
申请公布号 |
CA1257342(A) |
申请公布日期 |
1989.07.11 |
申请号 |
CA19850498463 |
申请日期 |
1985.12.23 |
申请人 |
UNISYS CORPORATION |
发明人 |
GAL, LASZLO V. |
分类号 |
H03K17/16;H03K19/003;H03K19/086;(IPC1-7):H03K19/00 |
主分类号 |
H03K17/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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