Op Amp Am Modulator Circuit. When a modulation signal is inputted the op amp output is lifted out of output saturation thus allowing the carrier to break through and it breaks through with an amplitude that is governed by the modulation. Am modulator circuit schematic you d be surprised what you can find this way.
The amplifier component used in the wien bridge circuit is an op amp with dual power supply. Pwm modulator using op amp. A true amplitude modulator.
May 11 2011 5 thanks carbonzit there are reasons for using an op amp like really need to control the quality of the carrier and it needs to be a.
The advantage that an opamp has is that it can be set for a null offset. Both the circuits are built around the versatile op amp ic 741. Am modulator circuit schematic you d be surprised what you can find this way. The circuit of the sine wave generator is shown in the following figure.
