专利名称：Apparatus and method for use in
disconnecting and/or replacing one of aplurality of power amplifiers in a transmitterwhile the transmitter is operating
发明人：Ky Thoai Luu,David Roger Koontz申请号：US09544736申请日：20000407公开号：US06294955B1公开日：20010925
专利附图：
摘要：Apparatus and method are presented for use in disconnecting and/or replacing
one of a plurality of M power amplifier modules in an RF transmitter while thetransmitter is operating. Each amplifier module has first and second outputs thatnormally are connected across an associated one of M transformer primary windings.Also, M transformer secondary windings are provided with each associated with one ofthe primary windings. The secondary windings are connected together in series across aload. Each amplifier module has a control input for receiving a disable signal that disablesthe amplifier module. The apparatus for use in disconnecting and/or replacing includes aswitch having a disable condition and an enable condition. A controller responds to theswitch being in a disable condition for providing a disable signal. A shorting switch isprovided having a normal open condition and a shorting condition and wherein the switchis connectable across the primary winding of an associated amplifier module to bedisconnected and/or replaced. A shorting switch driver responds to the disable signal fordriving the shorting switch to its shorting condition to short circuit the primary windingassociated with the amplifier module that is to be disconnected and/or replaced.
申请人：HARRIS CORPORATION
代理机构：Tarolli, Sundheim, Covell, Tummino & Szabo L.L.P.
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