 |
Hello and welcome to LMPForum, like most online communities you must register to view or post in our community, but don't worry this is a simple free process that requires minimal information. Take advantage of it immediately Register Now There are many great features that are not available to guests at LMPForum |
Forgot Password |
  |
Dc Soft Start Help, circuit anyone ? |
·
·
·
·
·
·
·
·
·
·
·
·
 Jul 28 2009, 10:14 PM
Post
#1
|
|
 Group: Members Posts: 1 Joined: 28-July 09 Member No.: 6,020  |
Hi desperately
 looking for a simple soft start circuit , 12 volt around 10 to 15 amps around 1/2 ...to... 1 second to full speed (building a tug for heavy loads needs to take out the jolt )....maybe using a power mosfet (with protection) and the ne555 ? or would a simple r/c with a power mosfet circuit do , any help would be much appreciated .... Peter
|
 |
 
|
|
Aug 1 2009, 09:29 PM
Post
#2
|
|
|
Posting Freak Group: Moderator Posts: 2,336 Joined: 24-April 02 From: Christchurch, New Zealand Member No.: 1 |
Hello Peter
If you are only looking for a start time of around a second, I would suggest a series resistance that is bridged out by a contact. - the resistance could be made up of a length of wire as the time is short and the total dissipation will be low. If you were wanting an extended start time, a solid state circuit would be of value by reducing the power dissipation. If you did use a solid state (MOSFET) circuit, you would robably still short it out to reduce the power dissipation. Best regards, Mark. -------------------- Mark Empson administrator
Skype Contact = markempson | phone +64 274 363 067 LMPForum | LMP Tech Warehouse | L M Photonics Ltd | Empson family | Advanced Motor Control Ltd | LMP Software | Mark Empson Website |
|
|
|
|
Similar Topics
| Topic Title | Replies | Topic Starter | Views | Last Action | |||
|---|---|---|---|---|---|---|---|
 |
34 | marke | 18,613 | 10th July 2009 - 04:11 AM Last post by: wrav001 |
|||
 |
5 | uhaykir | 4,421 | 5th July 2002 - 09:08 AM Last post by: marke |
|||
|
1 | marke | 3,236 | 14th July 2003 - 12:44 AM Last post by: GGOSS |
|||
|
3 | -Ravisankar- | 3,071 | 28th June 2002 - 08:04 AM Last post by: GGOSS |
|||
|
8 | GGOSS | 2,392 | 18th August 2003 - 07:00 AM Last post by: GGOSS |
|||
|
Lo-Fi Version | Time is now: 13th March 2010 - 09:33 PM |
