Linear CMOS oscillator circuit

Published:2011/8/6 3:03:00 Author:nelly | Keyword: Linear, CMOS, oscillator | From:SeekIC

Figure shows the linear CMOS oscillator circuit. With the potentiometer RPl , the frequency of the CD4047 CMOS can be adjusted in the range of 1:100. When the transistor, which can be used as the variable resistor, is added, the adjustment circuit, which can have the linear relationship with the frequency, can be formed. The emitting resistor RI of VTI can set the current of IC with the variable base voltage. the electric bridge, which is formed by the diode VDl ~ VD4，is used to ensure the symmetry work both in negative and positive cycle.



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