发明名称 |
Individual secondary protection device |
摘要 |
A secondary protection device for protecting a circuit. The device includes a first positive temperature coefficient (PTC) resistor, a bidirectional zener diode and a second PTC resistor connected in series across input terminals. Output terminals are connected across the bidirectional zener diode for providing a protected output to the circuit. A second zener diode is coupled between one end of the bidirectional zener diode and a ground potential for limiting an output voltage to the circuit.
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申请公布号 |
US6377434(B1) |
申请公布日期 |
2002.04.23 |
申请号 |
US19990418088 |
申请日期 |
1999.10.14 |
申请人 |
LUCENT TECHNOLOGIES INC. |
发明人 |
MARTINEAU DAVID EUGENE;MASSA PETER J. |
分类号 |
H01C1/16;H01C7/12;H02H9/02;H02H9/04;H04M3/18;(IPC1-7):H01C7/12 |
主分类号 |
H01C1/16 |
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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