×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

20W offline flyback.....and 100W Triac drive, together.

20W offline flyback.....and 100W Triac drive, together.

20W offline flyback.....and 100W Triac drive, together.

(OP)
Hi,

My boss just recently asked me to design and layout a 20W SMPS (offline flyback , vin= 85-265VAC, Vout = 36V).

This afternoon he came by and told me that the company also need a 100W variable speed Triac drive in the product, and so please could i put this on the 20W PCB too.

Would i be right in saying that 20W offline flybacks and 100W Triac VSD's don't share the same PCB very well?

Would i be right in saying that the 100W triac drive will need a considerable amount of mains filtering, and would best go on its own PCB?

The product is a shower with a pump added (for the VSD), and it has stepper motor hot and cold valves........the 20W SMPS is for powering the steppers and some LEDs

(the VSD will just have three separate speeds which will be 'chosen' by a microcontroller via opto-triac trigger.)  

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources