Amplifier Circuit of FM Transmitter Main Frequency Power

Published:2011/6/5 0:42:00 Author:Michel | Keyword: FM Transmitter, Main Frequency Power, Amplifier Circuit | From:SeekIC

This power amplifier can extend 1-2W、88-108MHZ FM transmitter power to 10-15W.It uses single pipe c class amplifier and low-pass filter.It has higher conversion efficiency andstrong suppersion of considered wave. Principle Figure The circuit is showed as above.It adopts high-power transmitting tube C1972 and parameters are as follows:175MHZ,4A,25W,power gain ≥8.5db.As the pictures'parameters,the work center frequency is about 98MHZ.When the input radio-frequency power is about 2W,the rating output can reach 15W.The center frequency of former stage adjusts part of components to make sure that any frequency port among 88~108MHZ can reach rating value when it outputs.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/Amplifier_Circuit_of_FM_Transmitter_Main_Frequency_Power.html

Print this Page | Comments | Reading(3)