发明名称 |
Protection circuit and method for RF power amplifiers in WLAN tranceivers |
摘要 |
A protection circuit for a power amplifier of a radio frequency transmitter includes a sensing circuit that generates a sensed signal based on an output of the power amplifier. A reference signal generator generates a reference signal. A comparator communicates with the sensing circuit and the reference signal generator and outputs a first state when the reference signal exceeds the sensed signal and a second state when the sensed signal exceeds the reference signal. A turn off circuit turns off the power amplifier when the comparator is in the second state.
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申请公布号 |
US6856200(B1) |
申请公布日期 |
2005.02.15 |
申请号 |
US20020246870 |
申请日期 |
2002.09.19 |
申请人 |
MARVELL INTERNATIONAL LTD. |
发明人 |
WEI SHURAN;TSE LAWRENCE;SUTARDJA SEHAT |
分类号 |
H03C1/62;H03F1/52;H03F3/45;H03F3/72;(IPC1-7):H03F1/52 |
主分类号 |
H03C1/62 |
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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