发明名称 |
Initial value setting circuit |
摘要 |
A voltage level of an output node is reversed by an inverter. An output of the inverter is used as an initial setting signal. A feedback switching transistor is also provided in an initial value setting circuit. Furthermore, there is provided a limiting device for eliminating an abnormal operation of the feedback switching transistor until the inverter starts a normal operation, in the event of momentary power failure or when the electric power source is quickly turned on after a very short break. Accordingly, normal operation of the inverter is assured even in such an abnormal condition accompanying momentary interruption of power supply, thereby surely outputting an initial setting signal.
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申请公布号 |
US5523710(A) |
申请公布日期 |
1996.06.04 |
申请号 |
US19950441923 |
申请日期 |
1995.05.16 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
MIYAKE, NAOMI;KOJIMA, MAKOTO |
分类号 |
H03K3/356;H03K17/22;(IPC1-7):H03K3/02 |
主分类号 |
H03K3/356 |
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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