Broadband using negative feedback amplifier circuit


Posted on Mar 28, 2007

Broadband using negative feedback amplifier circuit Shown as a negative feedback mode broadband amplifier circuit, the amplifier circuit are used transformer coupling, amplifyi


Broadband using negative feedback amplifier circuit
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ng section and sub-field effect transistor transistor combination. Circuit, the input signal is applied to the Ti coupling capacitor windings center tap, and then by the primary winding of the transformer T2 is applied to a field effect transistor gate on this way with an impedance conversion function, the input impedance increased to 50 n 200 n, the secondary winding of the transformer Tz group VT1 is very full load, depending on the gain of the amplifier T2 secondary winding (25/3 8,33). VT2 is emitter amplifier mode, the output impedance can be obtained through the coil tap 5011 selection.




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