Little help from the expert please.... - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 3rd June 2003, 04:37 PM   #1
diyAudio Member
 
Join Date: Sep 2002
Location: Malaysia
Default Little help from the expert please....

I'm a beginner of these electronic component things, so I need a little help from the expert, maybe this is not the correct room for posting this, but I still need some expert minded to help me.
Please help me to design an easy diagram of remote control car's electronic speed control. This ESC thing is looks like the picture that I attached. This ESC is use to amplfy a week signal into a stronger one which is similar to audio amplifier. I've choose HEXFET for the ESC which is IRF1404 and IRFz40. I only need one signal to be amplifed (I think this diagram would be easy for the expert). Hope all the expert here can spend a little time to help me. Thanks.
Attached Images
File Type: jpg dtxm1030.jpg (17.1 KB, 375 views)
  Reply With Quote
Old 5th June 2003, 03:57 AM   #2
diyAudio Member
 
Join Date: Sep 2002
Location: Malaysia
Maybe my question is a little bit "blur". All I need is a very simple circuit that use to stronger a weak signal. Hexfet is new to me, but I want the high power and the low resistence for controling my mad 540 motor, I use 7.2V or 9.6V high amp stick pack battery to power the remote control car. This is a "DIY" audio forum right? I've notice most of you guys are very good in drawing audio amplifier's circuit diagrams, but please draw one simple electronic speed control for me, pleeeessse
  Reply With Quote
Old 5th June 2003, 04:05 AM   #3
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
well what help is mabey i can find my schematics of the novak ones. that i use to repair. ill look around and see what i can find.

j'

What you going to use it for. ?

ofna Kyosho traxxas. Mugen ect or just a dragg car. Like my old one eheh.


still 1/8th is best.
  Reply With Quote
Old 5th June 2003, 05:08 AM   #4
diyAudio Member
 
Join Date: Sep 2002
Location: Malaysia
Quote:
Originally posted by JasonL
well what help is mabey i can find my schematics of the novak ones. that i use to repair. ill look around and see what i can find.

j'

What you going to use it for. ?

ofna Kyosho traxxas. Mugen ect or just a dragg car. Like my old one eheh.


still 1/8th is best.

>What you going to use it for. ?
I'm using it on my lousy smartech branded r/c car, I've modified the motor to 540 mabuchi 27 turn motor and one 15 turn motor, and I would like to DIY a ESC, saving money for modify the suspension.


>just a dragg car. Like my old one eheh.
I will use it for two car, one is for drag and one is track race.

Thanks for your reply, I'll wait for your good news
  Reply With Quote
Old 5th June 2003, 05:15 AM   #5
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
ok here it goes for dragg cars esc are not great. Build a nice one it would cost lots and to much weight. now the best it sol use some spst switches 2 of them one for pos and one for neg

that is what i used 2 of them at 4o amp's with a nice digital radio i use a 10t motor with 3000mah matches cells. man it flew fast. and it doesn't hurt the pocket. your going to not want to build one because of all the flaws and gear that your going to have to make it work with. i wold never build one.. the chances of having voltages going back into the reciver might be hi. i would stick to switches. or buy one actualy. and besides building one will add weight and size. factor's
  Reply With Quote
Old 5th June 2003, 05:51 AM   #6
diyAudio Member
 
Join Date: Sep 2002
Location: Malaysia
you mean using Relays for drag race? I've use it before, but it only got one speed, I want a smooth starting and relays don't give a smooth starting, it just spin alone and loose the race.

i'm using two 2800mAh connect in parallel.


>the chances of having voltages going back into the reciver might be hi
Don't worry, I'll put a nice scottky diode between the reciver and ESC.

I got a sample from a web site, this diagram is too huge for me, I only need a forward only diagram, backward and brake I'll use relay on it. Hexfet(R) Power MOSFET irf1404 is the main beast I want to use one the ESC.

If you know how to draw a simple forward only ESC, pleessss draw one for me....

http://www.qd-race.com/forum/index.p...y;threadid=439
  Reply With Quote
Old 5th June 2003, 06:41 AM   #7
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
no not relays switches contact switches like used in heavy machineary there awsome and you ues 4 of them if you want slow power to the motor at start. esc's are not as fast as switches....ill draw a schematic of the switch config tomorrow.
  Reply With Quote
Old 5th June 2003, 07:04 AM   #8
diyAudio Member
 
Join Date: Sep 2002
Location: Malaysia
Thanks. Mmmhhh... that's one new thing to me, how does it looks like? can you show me the website or attach any pics? can you give me the part number? maybe I'll go to buy it today, need any heatsink? How powerful it is? Or can you show me the website that explain how the switches work?
  Reply With Quote
Old 7th June 2003, 02:13 AM   #9
diyAudio Member
 
Join Date: Sep 2002
Location: Malaysia
I found a website and I think this is the SPST switch, it look quite heavy. How heavy is it? How high amp can the switch handle?
Attached Images
File Type: jpg mic_x1_p149_260x234.jpg (13.4 KB, 192 views)
  Reply With Quote
Old 7th June 2003, 02:21 AM   #10
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
No like this. you use 4 of them 2 for the first set and the other 2 for the final. but you need bigger ones i use to have ones that handled loots of current. Youll have to look around for them though. and you need a 2 channel radio still.
Attached Images
File Type: gif 919113s.gif (7.2 KB, 191 views)
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
TL expert please help Jimmy154 Multi-Way 7 25th August 2009 04:17 PM
Sound expert pls help Kikz Multi-Way 1 3rd January 2009 02:33 AM
question for expert anton Car Audio 6 25th February 2006 07:12 AM
Little help from the expert please.... Mikka Parts 1 6th June 2003 05:50 AM
Little help from the expert please.... Mikka Everything Else 0 4th June 2003 09:36 AM


New To Site? Need Help?

All times are GMT. The time now is 10:55 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2