发明名称 |
Overload detector and protection circuit |
摘要 |
An overload protection circuit for power supplies and telecommunications apparatus such as multifrequency ringing generators causes the output voltage to become zero when a current overload is detected. The voltage is kept at zero for a predetermined period of time. Then the output voltage is restored. If an overload is still detected, the output voltage is again brought to zero.
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申请公布号 |
US4965692(A) |
申请公布日期 |
1990.10.23 |
申请号 |
US19890387194 |
申请日期 |
1989.07.31 |
申请人 |
SIEMENS TRANSMISSION SYSTEMS, INC. |
发明人 |
BURNS, ROBERT V.;GUPTA, SANJAY |
分类号 |
H02H3/087;H04M19/02 |
主分类号 |
H02H3/087 |
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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