DIY Audio Projects Forum
 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

DIY Audio Projects Forum

Welcome to the DIY Audio Projects Message Forum. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. Registration is free and required to post messages and view the file attachments. Registration will only take a minute and registered users do not see any advertisements. After you have completed the online registration process, check your email (including spam/junk folder) for the verification email to activate your account. New members are under moderation - so your posts will not be visible until approved by a moderator. See the Read Me 1st, Forum RULES and Forum FAQ to get started on the forum.

It is currently 17 Oct 2019, 11:49

All times are UTC - 6 hours [ DST ]

Post new topic Reply to topic  [ 122 posts ]  Go to page Previous  1 ... 9, 10, 11, 12, 13
Author Message
PostPosted: 19 Sep 2019, 06:41 

Joined: 23 Feb 2017, 02:02
Posts: 553
Diodes are not rated for power disipation
They are rated for maximum current, as this is what will heat them up more.
The most stupid thing one would do is care about the power disipation on the diodes, unless your aiming for high efficency.

So as long as your not dumping too much current 5Amp schottky and 5Amp silicon diodes are same.

Very fast or schottky diodes are only used when one wants to minize the reverse recovery losses.
Reverse recovery means the diodes don't turn off instantly when theres no more voltage and keeps conducting.
This causes the powersupply voltage to get shorted to ground for short period of time during one cyclcle of the ac inpt voltage.

Themral resistance form junction to case, means that for every watt disipated, the case is X degrees hotter than the actuall cell inside.
Say 10w and the resistance 5C/W, then the case will be 10*5 = 50C above the cell

PostPosted: 20 Sep 2019, 07:08 

Joined: 13 Jan 2018, 21:33
Posts: 205
Location: australia
Thanks for making this clearer. I see the sr560 diodes are rated 15C/watt.


Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 122 posts ]  Go to page Previous  1 ... 9, 10, 11, 12, 13

All times are UTC - 6 hours [ DST ]

Who is online

Users browsing this forum: Google Adsense [Bot] and 20 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Op-amp Projects :: DIY Phono Projects :: DIY Cable Projects :: Hi-Fi Audio Schematics
© - Terms of Service - Privacy Policy