« previous next »
Pages: [1]   Go Down

Author Topic: CRD alternative  (Read 664 times)

0 Members and 1 Guest are viewing this topic.

Offline ArturNTopic starter

  • Newbie
  • Posts: 3
  • Country: pl
CRD alternative
« on: August 17, 2019, 12:17:40 pm »
Hello,

Recently i designed some device in which i needed to limit current.
I used CRD (Current Regulative Diode).
For example this:
https://pl.mouser.com/ProductDetail/Semitec/S-202T?qs=sGAEpiMZZMtjJbtednZihoE8nwVXbu0d

My question is that what is the cheapest alternative to this device?
I found only current limiter based on JFET's.

Any ideas? :)
Logged
 

Offline David Hess

  • Super Contributor
  • ***
  • Posts: 17167
  • Country: us
  • DavidH
Re: CRD alternative
« Reply #1 on: August 17, 2019, 07:35:49 pm »
I assume you mean exclusively for two terminal devices.

LM317s can be configured to provide a constant current.  The LM334 is an integrated current regulator.  Depletion mode MOSFETs can be used in place of JFETs.  The LM10/LT1635 operational amplifier and reference is also useful as a basic building block to make current regulators.
Logged
 

Online Benta

  • Super Contributor
  • ***
  • Posts: 6257
  • Country: de
Re: CRD alternative
« Reply #2 on: August 17, 2019, 09:36:06 pm »
J507
Logged
 

Offline NiHaoMike

  • Super Contributor
  • ***
  • Posts: 9232
  • Country: us
  • "Don't turn it on - Take it apart!"
    • Facebook Page
Re: CRD alternative
« Reply #3 on: August 18, 2019, 05:01:25 am »
Depending on the circuit requirements, you might be able to use a current source based around a bipolar transistor, two diodes, and two resistors.
Logged
Cryptocurrency has taught me to love math and at the same time be baffled by it.

Cryptocurrency lesson 0: Altcoins and Bitcoin are not the same thing.
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee