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Sine wave generator circuit

Started by antimony, October 15, 2016, 02:53:10 PM

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antimony

October 15, 2016, 02:53:10 PM
Hi, I have been interested in making a sine wave generator circuit since i don't have the funds to buy a function generator right now, and I wonder if someone could please recommend me one that is good, and not too complicated as I am really not experienced in this field yet.

I wanted to experiment with coil lc resonance.

Thanks in advance. 

citfta

#1
October 15, 2016, 03:06:40 PM
A simple search reveals there are plenty of them to choose from.

https://duckduckgo.com/?q=sine+wave+generator+circuit&t=ffsb&ia=web

derricka

#2
October 15, 2016, 11:32:11 PM

@ antimony


The XR2206 chip makes a great low cost signal generator (1HZ-1MHZ) suitable for beginners. If you have some basic soldering skills, you can buy a complete kit for about $10 US:

http://www.banggood.com/XR2206-Function-Signal-Generator-DIY-Kit-Sine-Triangle-Square-Output-1HZ-1MHZ-p-1060825.html?rmmds=buy

forest

#3
October 16, 2016, 03:17:43 AM
You have to look either for a obsolete integrated chips like XR2206 or search for variable Wien bridge sinewave oscillator ( in this case you will need more electronic parts like dual-pot for example but the sinewave is very pure , without distortions)


Btw I'm looking for help to amplify such signal using simple one transistor amplifier capable of with standup to 100V. Could somebody post a solution ? I know that many such high current higher voltage transistors have low Hfe so the amplifier maybe need additional transistor circuit to make it work properly ?
Could someone propose working circuit with 2n3055 transistor or other one ?

forest

#4
October 16, 2016, 03:20:32 AM
Quote from: derricka on October 15, 2016, 11:32:11 PM
@ antimony


The XR2206 chip makes a great low cost signal generator (1HZ-1MHZ) suitable for beginners. If you have some basic soldering skills, you can buy a complete kit for about $10 US:

http://www.banggood.com/XR2206-Function-Signal-Generator-DIY-Kit-Sine-Triangle-Square-Output-1HZ-1MHZ-p-1060825.html?rmmds=buy


That's very nice. I think it would be much more usable with dual channel output with ability to change phase relations between signals. 


Anyway to accomplish that easily and cheaply ? (I know i can buy some costly generator)
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