Jump to content
Electronics-Lab.com Community
Sign in to follow this  
nuttaphong191

dc to ac help

Recommended Posts

If an ordinary 555 has a 15V supply, as an oscillator its output goes up to only about 13.8V and down almost to 0V. So the output is not 15VAC.

A Cmos 555 like an LMC555, TLC555 or ICL7555 has an absolute max supply voltage of 15V and its output will swing up to exactly 15V and down to 0V if it has a very high load resistance.

The outputs of a 555 and a Cmos 555 are square-waves.

Share this post


Link to post
Share on other sites

Yes the 555 has a squareware output. But you can integrate this over a cap and get a psuedo signwave. Use that to drive a descrete transistor switching the DC. You will have to play with it, but it's doable.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...