Did you simulate it in Spice already? I use LTspice to check most of my circuits.
(I built an RC oscillator before, but it was symmetric. Both transistors had the RC network and were crossed with each other C to B. Your oscillator, at face value, seems not to work, why? well, think about how will the lower left capacitor discharge? What will you connect on the output? )
EM
PS. This is what I built a while ago, and it worked great. The output can also be taken from the other transistor and it will be 180 deg out of phase, so its complimentary, you can drive a push pull stage.
EM, Thanks for taking time to look at my circuit. I do not have a Spice simulator. I have built (some long time ago) the standard oscillator you posted but this oscillator does not meet my needs because of two tuning RC parts. I need a oscillator that have just one R and one C to tune. My thought for my oscillator is like this: At switch on there is no output so the capacitor is not charged. This means the first transistor is not switched on. The second transistor will switch on bringing the gate on the P-Type mosfet low, thus switching on the output. Now the capacitor will charge and the first transistor will switch on. This will swicth off the second transistor, bringing the gate on the P-mosfet high again, thus switching off the mosfet. Now the output is gone and the capacitor will discharge through the base emitter diode on the first transistor, switching off the first transistor again. The cycle repeats. Now, by using a variable resistor in the RC network will allow me to tune the frequency. That was the plan. GL.
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Topic: RC Power Oscillator (Read 26490 times)
