Broadband nonlinear drive control network for linear...

Details Broadband nonlinear drive control network for linear... Broadband nonlinear drive control network for linear...

H - Electricity

03

F

330/105

H03F 3/68 (2006.01) H03F 1/32 (2006.01) H03F 1/56 (2006.01)

Patent

CA 2011193

TITLE OF THE INVENTION BROADBAND NONLINEAR DRIVE CONTROL NETWORK FOR LINEAR AMPLIFIERS ARRANGED IN SEVERAL AMPLIFIER CHANNELS ABSTRACT OF THE DISCLOSURE A broadband nonlinear drive control network for linear ampli- fiers with several amplifier channels has a first branch with an adjustable amplitude limiter connected to a signal source through an impedance inverter, whereby an increasing impe- dance is produced at the signal source when the limiter kicks-in. A variable resistor is connected to the signal source in a second branch. The resistor begins to conduct only above an adjustable high frequency signal voltage. The amplitudes at the limiter and at the resistor are tuned to each other so that the load impedance at the signal source remains constant. Linear branch signal combinations provide the drive control voltages for the individual channels. A portion of the power output of the branch directly drives the amplifier channel. 2435/ar - 1 -

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