Parallel type crystal oscillator circuit

Published:2011/6/26 9:01:00 Author:Fiona | Keyword: Parallel type, crystal | From:SeekIC

Among this circcuit, the resistors R1,2 and resistors R5, R6, R7 are the DC bias component of the transistors VT1 and VT2.High-frequency choke coil L2 offers the DC path to the the collector current of the oscillation tube VT1. C2 is the blocking capacitors.C3, C7 are the exchange bypass capacitor which make the emitter of the VTl in exchange zero potential,but the DC-bit is not zero.The inductor L1, capacitor c6,resistor R 3 improve the power supply filter circuit,whose role is to reduce ripple voltage to increase the DC component. Slightly adjustable capacitors can change the size of the coupling signal.



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