Audio Asylum Thread Printer

Get a view of an entire thread on one page

Tube DIY Asylum

Cree SiC Schottkys might work

206.228.222.38

In Reply to: RE: Diode Biasing using other than LEDs posted by Maxamillion on July 01, 2009 at 13:34:33

Here is the forward voltage vs forward current plot for the Cree SiC 1A rated Schottky diodes. x-axis = volts, y-axis = amps
Dynamic resistance seems to be in the range of ~0.8ohm from 10mA to 100mA, and the curve is very ateep and linear. This is lower dynamic resistance than any LEDs I have seen to date. Looks like these might be worth experimenting with as cathode bypass diodes. They have ~1V forward voltage at 100mA, as opposed to pure Si diodes, which have a much lower forward voltage.
Thoughts?

Edits: 07/02/09 07/02/09 07/02/09 07/02/09 07/02/09 07/02/09

Follow Ups:

Closeup of voltage/current chart - Maxamillion 11:44:38 07/02/09 (1)
Here is a blowup of the lower region of the forward voltage vs forward current curve for the Cree 1A SiC Schottkys
- RE: Closeup of voltage/current chart - Maxamillion 14:07:33 07/02/09 (0)
  Just ordered 20 of the OPE5594A IR diodes from Allied (back ordered though!). Nice and linear in the 10-20mA range I'll be working in.
  
  When they get in I'll compare them to the Cree SiC I already have and the stock RC circuit - should be interesting. Will be a couple weeks until I can get it done, though.

Post a Followup:

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.