发明名称 |
Apparatus and method for protecting an amplifier circuit |
摘要 |
Circuit for protection of an amplifier stage comprising circuit switching means for turn-off of the stage and piloted through a logic gate OR by a monostable, which generates upon arise of abnormal operating conditions turn-off command signals having a predetermined duration. A sensing circuit upon persistence of abnormal conditions at start-up or during normal operation also sends turn-off signals through the logic gate OR after enablement through a gate AND. The signals of any enablement at the logic gate AND arrive through a logic gate OR from a window comparator coupled with stage start-up members, from the monostable, and from the output of said logic gate AND as a confirmation signal.
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申请公布号 |
US5568342(A) |
申请公布日期 |
1996.10.22 |
申请号 |
US19940366214 |
申请日期 |
1994.12.29 |
申请人 |
SGS-THOMSON MICROELECTRONICS S.R.L. |
发明人 |
TAVAZZANI, CLAUDIO;FASSINA, ANDREA;STEFANI, FABRIZIO |
分类号 |
H03F1/30;H03F1/52;(IPC1-7):H02H3/04 |
主分类号 |
H03F1/30 |
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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