发明名称 |
MIS transistor driven inverter circuit capable of individually controlling rising portion and falling portion of output waveform |
摘要 |
A resistor is connected to an input portion of a CMOS inverter. An input of the CMOS inverter is affected by a time constant of an RC circuit comprising the resistor and gate stray capacitance of the CMOS inverter. In addition, there is provided an n channel MOS transistor having a drain and a source connected to both ends of the resistor, respectively, and a gate connected to an input signal source. Only in the rising portion of an input signal, the n channel MOS transistor is turned on, so that the resistor is bypassed. Thus, a waveform of output of the CMOS inverter is not delayed at the falling portion. Only at the rising portion, the waveform thereof is delayed due to the time constant of the above described RC circuit.
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申请公布号 |
US4931668(A) |
申请公布日期 |
1990.06.05 |
申请号 |
US19880143399 |
申请日期 |
1988.01.13 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
KIKUDA, SHIGERU;YAMADA, MICHIHIRO;MIYAMOTO, HIROSHI |
分类号 |
H03K4/94;H03F1/52;H03K5/01;H03K5/12;H03K17/04;H03K17/08;H03K19/003 |
主分类号 |
H03K4/94 |
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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