Clamper & 3phase waveform generation using opamps.

Hello.

I am designing a multi-carrier multi level inverter.
I am not discussing about that concept here.


-> I want three phase sine waveforms displaced 120 deg apart (adjustable frequency). each should be atleast 6V peak voltage. (using op-amp)

-> A triangle wave(1KHz) (using op-amp, not with ICs like XR2206)

-> A clamper circuit to clamp the triangle wave to a desired level.

see the attachment.

I have gone through the link http://www.allaboutcircuits.com/vol_3/chpt_3/7.html

I will test that circuit tomorrow. I am unable to find clamper circuits on the net. I heard that op=amp gives more reliable results compered to diode circuits.

A small startup hint is enough to start my work.


Thankyou

For a clamping example, see post #3 here..... http://forum.allaboutcircuits.com/showthread.php?t=79504

By "clamping" do you mean "clipping" per BillB3957's circuit, or do you mean to establish the DC level of the waveform.

If you want the DC level to be established and your waveform has a constant dutycycle, you can simply capacitively couple the signal to a resistance at the desired DC level.

For your waveform generation needs, you will find the solutions in the following publication:

http://www.ti.com/lit/an/slod006b/slod006b.pdf