发明名称 |
POWER AMPLIFIER AND TRANSMISSION AND RECEPTION SYSTEM |
摘要 |
A power amplifier includes: a first multi-finger FET formed on a semiconductor substrate; a second multi-finger FET formed on the semiconductor substrate; a first temperature detector which detects a channel temperature of the first FET; a second temperature detector which detects a channel temperature of the second FET; a third temperature detector which detects a temperature of the semiconductor substrate; a first detection circuit detecting a difference between an output of the first temperature detector and an output of the third temperature detector and converting the difference to thermoelectromotive force; a second detection circuit detecting a difference between an output of the second temperature detector and the output of the third temperature detector and converting the difference to thermoelectromotive force; and a comparator comparing outputs of the first and second detection circuits with each other to turn on one of the first and second switches and turn off the other.
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申请公布号 |
US2008238550(A1) |
申请公布日期 |
2008.10.02 |
申请号 |
US20070857737 |
申请日期 |
2007.09.19 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
SASAKI TADAHIRO;ABE KAZUHIDE;ITAYA KAZUHIKO;FUNAKI HIDEYUKI |
分类号 |
H03F3/16;H03F3/68 |
主分类号 |
H03F3/16 |
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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