Page 2 of 2 FirstFirst 12
Results 11 to 14 of 14

Thread: "Interesting take" on the importance of capacitor quality within a PSU.

  1. #11
    Join Date
    Jun 2010
    Location
    The Netherlands
    Posts
    6,030
    Thanks Thanks Given 
    401
    Thanks Thanks Received 
    293
    Thanked in
    225 Posts

    Default

    Quote Originally Posted by RyzenMaster View Post
    They said that is impossible since the supervisor IC did not have enough pins.
    I remember a person called Stefan who always used that logic.

  2. The Following User Says Thank You to -The_Mask- For This Useful Post:

    Jon Gerow (11-25-2020)

  3. #12
    Join Date
    Oct 2017
    Location
    Grand Junction, CO
    Posts
    3,096
    Thanks Thanks Given 
    226
    Thanks Thanks Received 
    131
    Thanked in
    120 Posts

    Default

    Quote Originally Posted by RyzenMaster View Post
    I said the supervisor IC definitely says it has support for OCP on the 3.3v, 5v, and 12v rails. They said that is impossible since the supervisor IC did not have enough pins.

    Lets say one wants to trigger if there is an overcurrent on any rail; the digital OR logic is quite simple. If A OR B OR C = 1 on the input than the output should be one. Now the supervisor IC only needs one input but can cover an indefinite number of rails using OR gates.
    Attached Images Attached Images
    Last edited by ashiekh; 11-26-2020 at 02:41 AM.

  4. #13
    Join Date
    Aug 2014
    Location
    Poland
    Posts
    1,101
    Thanks Thanks Given 
    373
    Thanks Thanks Received 
    84
    Thanked in
    55 Posts

    Default

    Quote Originally Posted by ashiekh View Post
    Lets say one wants to trigger if there is an overcurrent on any rail; the digital OR logic is quite simple. If A OR B OR C = 1 on the input than the output should be one. Now the supervisor IC only needs one input but can cover an indefinite number of rails using OR gates.
    Sure, if we go with this idea then you'd need another IC that contains the current measurement mechanisms and your OR logic, then relays the result to the supervisor IC's "one input". But did we really make it simpler this way, rather than just using a single supervisor IC capable of monitoring as many rails as we need? I don't think so.

  5. #14
    Join Date
    Oct 2017
    Location
    Grand Junction, CO
    Posts
    3,096
    Thanks Thanks Given 
    226
    Thanks Thanks Received 
    131
    Thanked in
    120 Posts

    Default

    Quote Originally Posted by Orion View Post
    Sure, if we go with this idea then you'd need another IC that contains the current measurement mechanisms and your OR logic, then relays the result to the supervisor IC's "one input". But did we really make it simpler this way, rather than just using a single supervisor IC capable of monitoring as many rails as we need? I don't think so.

    I am countering the argument that 'there are not enough pins on the supervisor IC' and this approach means one is not limited by how many pins there might be, so I'd say it was much less restrictive. It also has the advantage that one can implement a 'slow blow' feature.
    Last edited by ashiekh; 11-26-2020 at 03:10 PM.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •