World's Simplest Soft Latching Power Switch Circuit - Page 1
Forum section: electronics / general

author: abdulsamaddabu
author_rank: Contributor
timestamp: July 05, 2017, 07:20:06 am
content: help

author: Zucca
author_rank: Unknown
timestamp: July 05, 2017, 07:47:09 am
content: Well, without a crystal sphere to read your mind and the future it is impossible to help you.Providing more details is surely a remarkable idea, don't you think?

author: bjcuizon
author_rank: Frequent Contributor
timestamp: July 05, 2017, 07:59:42 am
content: Quote from: abdulsamaddabu on July 05, 2017, 07:20:06 amWhat do you want us to do about your question? Maybe you will need something like this one...Dave has done a video about it.Next time, please expand or give details to your question...Even if your not a native English speaker, we will try our best to understand it as much as possible.https://youtu.be/Foc9R0dC2iI

author: Halcyon
author_rank: Unknown
timestamp: July 05, 2017, 08:12:19 am
content: Is it just me or has the average intelligence on this forum fallen in the last 6-12 months? Do people not know how to communicate anymore?

author: tszaboo
author_rank: Super Contributor
timestamp: July 05, 2017, 08:22:51 am
content: Quote from: Halcyon on July 05, 2017, 08:12:19 amI just dont answer questions for people, who have less than 5 posts on the forum. Its only fair. Unless the person manages to show some actual competence in the post.

author: neo
author_rank: Super Contributor
timestamp: July 05, 2017, 08:38:25 am
content: I'm just going to leave this here, with three notes. A) all values are example only and in reality you will need to pull reset/set low. B) you may omit the relay entirely if the load is small enough. C) It doesn't hurt to put SOME effort into asking for help.

author: Cyberdragon
author_rank: Super Contributor
timestamp: July 05, 2017, 04:33:40 pm
content: Quote from: Halcyon on July 05, 2017, 08:12:19 amTis dis new 420 internet culture man, it be like totes rad man. (EDIT: how many brain cells did I kill with that...)But seriously, can we get an update to the rules that says that if the thread is not a link/video, that it has at least an attempt at a complete sentance.

author: schmitt trigger
author_rank: Super Contributor
timestamp: July 05, 2017, 04:47:45 pm
content: In one of the other electronics forums which I attend, a couple of years ago, there was an even worse post:The title was related to some power supply question, and the message consisted of a single and lonely?

author: Cyberdragon
author_rank: Super Contributor
timestamp: July 05, 2017, 05:21:36 pm
content: no...this is the worst post ever...help?they don't even know if they want help...

author: Zero999
author_rank: Super Contributor
timestamp: July 05, 2017, 05:47:33 pm
content: Quote from: bjcuizon on July 05, 2017, 07:59:42 amThis one's even more simple but the resistor values may need to be tweaked a little to get it to work.

author: abdulsamaddabu
author_rank: Contributor
timestamp: September 05, 2017, 05:21:12 pm
content: sorry i dint told you me problemreally really sorryi actually wanted to create a simplest soft latch circuit by using ics not transistor or resistor or capacitori have found the solutionthe solution is using D flip flop

author: iampoor
author_rank: Frequent Contributor
timestamp: September 06, 2017, 06:22:20 am
content: I dont know if its coincidence or not, but I seem to read alot of questions asked like this by people that live in India or the Middle East. No context, no details, just wanting spoon fed information. Maybe its a cultural or communication difference? Okay back to your normally scheduled programming now....

author: X
author_rank: Regular Contributor
timestamp: September 06, 2017, 07:13:03 am
content: Quote from: abdulsamaddabu on July 05, 2017, 07:20:06 amThere was a power latching circuit here I think:Should be enough for you to get an A++++++++ on your assignment.

author: BrianHG
author_rank: Super Contributor
timestamp: September 06, 2017, 07:33:25 am
content: Quote from: Hero999 on July 05, 2017, 05:47:33 pmDanger in your attached schematic... If there is a substantial charge in the 1uf, say the system +V is 50v, you will potentially blow the base of the NPN transistor. For low voltages, the circuit should be fine, or, add a series resistor on the button when operating above 12v.

author: neo
author_rank: Super Contributor
timestamp: September 06, 2017, 07:35:05 am
content: Quote from: X on September 06, 2017, 07:13:03 amIf you are referencing how frankenstein once turned on (rendered alive) stayed on (alive) then