http://www.simplecircuitdiagram.com Free Simple Circuit Diagram Mon, 06 Feb 2012 04:23:39 +0000 en hourly 1 http://wordpress.org/?v=abc http://www.simplecircuitdiagram.com/2009/12/24/colpitts-crystal-oscillator/ http://www.simplecircuitdiagram.com/2009/12/24/colpitts-crystal-oscillator/#comments Thu, 24 Dec 2009 10:08:25 +0000 Adam http://www.simplecircuitdiagram.com/?p=338 We can create Crystal Colpitts oscillator using a parallel mode crystal and a transistor. The circuit shown by the following figure As an inductance, this circuit uses crystal. The crystal circuit consist of a large value capacitive divider that is  … Continue reading →]]> http://www.simplecircuitdiagram.com/2009/12/24/colpitts-crystal-oscillator/feed/ 0 http://www.simplecircuitdiagram.com/2009/11/16/op-amp-colpitts-oscillator/ http://www.simplecircuitdiagram.com/2009/11/16/op-amp-colpitts-oscillator/#comments Mon, 16 Nov 2009 08:09:43 +0000 Adam http://www.simplecircuitdiagram.com/?p=177 Colpitts oscillator can be implemented using op-amp as long as we have an op-amp with proper bandwidth. Here is an example of such circuit: LT1190 or  LT1191 op-amps is used to serve as an excellent gain stages. Limiting the gain … Continue reading →]]> http://www.simplecircuitdiagram.com/2009/11/16/op-amp-colpitts-oscillator/feed/ 0