发明名称 |
Portable transceiver |
摘要 |
<p>A portable radio transceiver has a gallium arsenide depletion mode n-channel field-effect transistor as the transmitter power supply amplifier which needs a negative supply applied to its gate to establish the correct working point. A positive power supply provides the power input to the gallium arsenide transistor and a high side switch in the form of a PMOS enhancement mode transistor is used to switch the transmitter on and off. The negative supply is also used to forward bias the gate of the PMOS transistor when conducting so as to reduce its forward conduction resistance thereby enabling a smaller transistor to be used which can be integrated with other low power devices used by the transceiver. <MATH></p> |
申请公布号 |
EP0700165(A2) |
申请公布日期 |
1996.03.06 |
申请号 |
EP19950306068 |
申请日期 |
1995.08.30 |
申请人 |
TEXAS INSTRUMENTS LIMITED;TEXAS INSTRUMENTS INCORPORATED |
发明人 |
NIMMO, ROSS;SMITH, DAVID |
分类号 |
H03F3/24;H03F3/213;H04B1/04;H04B1/40;H04B1/44;(IPC1-7):H04B1/04 |
主分类号 |
H03F3/24 |
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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