Author Topic: Question! and Help I need to build a v8 engine servo motor governor  (Read 48543 times)

0 Members and 1 Guest are viewing this topic.

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #120 on: November 22, 2009, 04:41:44 PM »
Hi Neil,


Don't mind at all.

Here's an annotated schematic that should help getting your head around it:


Open in another window or use this link to fetch it full size: http://That.Homepage.dk/Img/Schem_Ann.gif
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #121 on: November 23, 2009, 11:16:41 AM »
Soren

Thank you for the schematic I will gather the parts and get started. I might have to order a couple things as Radio shack is not handleing in store stock like they use to.

But as soon as I get the goods I'll be on it. ;)
Take care
Neil

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #122 on: November 23, 2009, 02:33:14 PM »
Hi Soren

Just a quick question. On a couple of the resistor values like R1 and R3 are separated by k.
Just so i am clear if it is 4k7 you are wanting a 47k resistor correct?


I just ordered the parts from Digi-key Inc. No one had anything around here, so a couple things I will have to wait till Monday to get, with the Thanksgiving holiday coming.

I will put together what I can now and wait for the rest.


Oh yes almost  forgot wanted to show you the turkey we will eat on Thursday! It brightens your holiday and is very low in calories :o

http://www.elexp.com/kit_2019.htm

Just wanted to ask! :)

"No matter How, When, or Where you celebrate I am sending You a Very Special Thanks and Happy Holiday too you and yours as we celebrate here in the USA" ;D
Take care
Neil

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #123 on: November 24, 2009, 05:55:11 PM »
Hi Neil,

Just a quick question. On a couple of the resistor values like R1 and R3 are separated by k.
Just so i am clear if it is 4k7 you are wanting a 47k resistor correct?
The "k" takes the place of the decimal point => 4k7 = 4.7 kOhm = 4700 Ohm.


Oh yes almost  forgot wanted to show you the turkey we will eat on Thursday! It brightens your holiday and is very low in calories :o
Don't keep it in the oven for too long though  :P

Happy Thanksgiving to you and your circles!
We aren't celebrating Thanksgiving here, but tonight it's 9 years exactly since my SO and I met and we had chicken for dinner, so we had our own version you might say :)

Just noticed your PM since I had the sound on (which I only have when I'm expecting to listens to something). Too bad I didn't see it when you wrote it (if I was online then), but we'll have a chat some other time ;D

Enjoy your turkey this Thursday (the meat version) and your family and friends. I'll be in the OR all day Thursday (but luckily I'm not the one on the table).
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #124 on: December 01, 2009, 07:28:43 PM »
Hi Soren

Long time no type ;D

I just wanted to let you know I got  the parts in today and will start tomorrow building.

 Hope all has been well for you, and I will send a update tomorrow night.
Take care
Neil

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #125 on: December 02, 2009, 08:53:17 PM »
Hello Soren
Quick question ::)

When I am at TP11 should I be seeing this? :o ::) ???
« Last Edit: December 02, 2009, 09:33:42 PM by wheelyneil »
Take care
Neil

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #126 on: December 03, 2009, 07:22:00 AM »
Hi Neil,

When I am at TP11 should I be seeing this? :o ::) ???
I cannot tell which channel I'm looking at and the timebase is not too clear either, but I'd have to say no, you should see something close to what I drew on page 2 of the file "Servo_Control_V2c.pdf".

If you connect a wire from TP13 to B+, TP11 should measure close to 0V (up to ~half a volt).
If you connect a wire from TP13 to Gnd, TP11 (and C1) should charge to 9..12V in a few milliseconds.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #127 on: December 03, 2009, 10:55:10 PM »
Soren

Sorry I don't have more info, but I am still tracing and changing out parts trying to get the timing chart waves.

it's being a pain >:(

I'll stay on it ;D

You may want to send me a schematic of the 555 time circuit. Then I can build it on a separate board. With it being the easier set up. Then I can use it as a guide for my signal output while working on the more complex servo circuit.

Your thoughts please! ;D
« Last Edit: December 04, 2009, 06:55:41 AM by wheelyneil »
Take care
Neil

Offline definitionofis

  • Jr. Member
  • **
  • Posts: 41
  • Helpful? 1
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #128 on: December 04, 2009, 08:27:46 AM »
I read the whole thread.
In case this is not obvious, I guess you know about solderless prototyping boards:

http://www.dipmicro.com/store/index.php?act=viewCat&catId=165


Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #129 on: December 04, 2009, 09:26:13 AM »
Hi Neil,

You may want to send me a schematic of the 555 time circuit. Then I can build it on a separate board. With it being the easier set up. Then I can use it as a guide for my signal output while working on the more complex servo circuit.

Your thoughts please! ;D
I'll dig it out either (much) later tonight , or sometimes tomorrow, as I'm going to a theater play tonight.
Unfortunately, you won't be able to compare waveforms between those two circuits, except for the final output, as they use different methods to get there.

But...
Let's break it down a bit.
Remove anything but:
R1 to R4, C1, D1, Q1 and IC2
and test like I described.


If you feel you're banging your head against the wall a little too much these days,
I could make you a much simpler/smaller/cheaper schematic with a tiny µ-controller and some "glue" parts.
It won't teach you a thing, but it might get your blood pressure down a few notches ;D
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #130 on: December 04, 2009, 09:34:08 AM »
Hi,

I read the whole thread.
In case this is not obvious, I guess you know about solderless prototyping boards:

Well, you obviously missed posts like this one:  ;D
http://www.societyofrobots.com/robotforum/index.php?topic=9087.msg72956#msg72956

As you can see, Neil do build on a solderless board. (Personally, I'm not too happy with solderless boards, as I have seen too many errors caused by them, but they do save time for quickies).
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline definitionofis

  • Jr. Member
  • **
  • Posts: 41
  • Helpful? 1
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #131 on: December 04, 2009, 09:50:53 AM »
Yes, I must have missed that post.


Hi,

I read the whole thread.
In case this is not obvious, I guess you know about solderless prototyping boards:

Well, you obviously missed posts like this one:  ;D
http://www.societyofrobots.com/robotforum/index.php?topic=9087.msg72956#msg72956

As you can see, Neil do build on a solderless board. (Personally, I'm not too happy with solderless boards, as I have seen too many errors caused by them, but they do save time for quickies).


Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #132 on: December 04, 2009, 04:24:28 PM »
Hi Soren

Quote
But...
Let's break it down a bit.
Remove anything but:
R1 to R4, C1, D1, Q1 and IC2
and test like I described.

Soren I have to be out also tonight so I will start testing tomorrow afternoon, and break this thing down to see if I can get a handle on it.

Hope you had a good time last night?

Till tomorrow
Take care
Neil

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #133 on: December 04, 2009, 08:23:03 PM »
Soren

Breathing IN pause and Breathing out Pause helps blood pressure  :P

Here are the readings for TP11 with TP13 to B+ and GRD.

With TP13 to B+, TP11 did not show any voltage rise even with scope set to 0.5v/div but if I put D4 back in it read just over 1.2 volt.  Right or wrong I just wanted to see what was going to happen with D4 in play. :o

With Tp13 to GRD Tp11 was about 11volts with.

Both IC2 and Q1 were replace with new parts.

Now hear is a little more break down of testing. I separate CCG part of the circuit and took a reading at output at D1 it was ~11v.
Then I tested and swaped out Q1 for a new part. Then took reading with IC2 back in circuit. Tp13@B+, -Tp11= 0v Then Tp13@GRD- TP11=11v.

With circuit tested as your request the voltage at Q1's  Base is ~0.5v

First 2 photo's is with D4 in circuit. Just so you know.
Last 2 photo's without D4 I tried it both ways reading was still 10v with or without D4.
« Last Edit: December 05, 2009, 08:52:40 AM by wheelyneil »
Take care
Neil

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #134 on: December 05, 2009, 08:35:02 AM »
Hi Neil,

Breathing IN pause and Breathing out Pause helps blood pressure  :P
Yeah, we tend to forget sometimes  :-\


With TP13 to B+, TP11 did not show any voltage even with scope set to 0.5v/div but if I put D4 back in it read just over 1.2 volt.  Right or wrong I just wanted to see what was going to happen with D4 in play. :o
Is this without any input and only with the mentioned components - apart from D4(?), which I'd really like you to tell me more about  ???
Perhaps "My forgetter's gettin' better" as the song goes, but I don't recall any D4?

Wonder where the pulses come from as well, as there should be nothing but DC at this stage alone.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #135 on: December 05, 2009, 09:15:15 AM »
Quote
Is this without any input and only with the mentioned components


Yes only  components requested!
B+ and GRD applied to TP13 - IC2 has B+ applied to terminal leg 1

Quote
apart from D4(?), which I'd really like you to tell me more about  ???
Perhaps "My forgetter's gettin' better" as the song goes, but I don't recall any D4?

In the timimg cap /plus 3v shunt part of the circuit , D4 is a 2.7v zener at least I thought it was :-\

Quote
Wonder where the pulses come from as well, as there should be nothing but DC at this stage alone.
???

Just so you know when Tp13 is @ B+, the voltage @ the base of Q1 is 0.5v.
I am going to isolate this circuit out to another proto board and power supply so I have no interferance from other already built circuits :P

I'll keep trying ;D
« Last Edit: December 05, 2009, 09:57:00 AM by wheelyneil »
Take care
Neil

Offline definitionofis

  • Jr. Member
  • **
  • Posts: 41
  • Helpful? 1
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #136 on: December 05, 2009, 03:02:23 PM »
Are these mechanical governors not precise enough for electricity generation ?
That woodygasifier.com guy mentioned them in one of his videos.

http://cgi.ebay.ca/NEW-HOOF-ENGINE-GOVERNOR-Item-28-1201_W0QQitemZ200401862288QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2ea8e1be90


Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #137 on: December 06, 2009, 08:00:11 AM »
Hi Neil,


Yes only  components requested!
B+ and GRD applied to TP13 - IC2 has B+ applied to terminal leg 1
OK
The pulses shouldn't be there if coupled as I asked you to.


In the timimg cap /plus 3v shunt part of the circuit , D4 is a 2.7v zener at least I thought it was :-\
?
Quote
Remove anything but:
R1 to R4, C1, D1, Q1 and IC2
and test like I described.
No D4 there ;)
I don't know whether you refer to something else, because I'm really puzzled, as I have just reviewed each schematic (Please tell me which, if you remember)?
Perhaps I have renumbered a schematic after posting it (but it would be very unlike me to change something allready posted without a new name).
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #138 on: December 07, 2009, 10:42:48 AM »
Hi Soren

Quote
No D4 there ;)
I don't know whether you refer to something else, because I'm really puzzled, as I have just reviewed each schematic (Please tell me which, if you remember)?
Perhaps I have renumbered a schematic after posting it (but it would be very unlike me to change something allready posted without a new name quote]


Here is what I am looking at and seeing a D4 schematic below ;D. And your link to it.

http://that.homepage.dk/Img/Schem_Ann.gif
« Last Edit: December 07, 2009, 10:46:02 AM by wheelyneil »
Take care
Neil

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #139 on: December 07, 2009, 11:27:35 AM »
Hi Soren

Okay now Components are isolated only R1-R4,Q1,C1,D1,IC2 are in circuit.

Readings @ Tp11 are 11.5v when TP13 is @ GRD And Milli Volts when Tp13 is @ B+.
And there is no pulse ;D


"Question" when Tp13 is not hooked to anything what should the reading @ Tp11 be?

I am getting a reading of 11.5v, but at this point I'm not sure of anything :o :P ;D
Take care
Neil

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #140 on: December 07, 2009, 06:03:48 PM »
Hi Neil,


Sorry about the D4 issue!
D4 is only in that schematic and since I re-worked it in a paint program, I had it in a different folder.
I'll put it into the regular schematic in next revision, since it keeps the cap from going too low.


Okay now Components are isolated only R1-R4,Q1,C1,D1,IC2 are in circuit.

Readings @ Tp11 are 11.5v when TP13 is @ GRD And Milli Volts when Tp13 is @ B+.
And there is no pulse ;D
Great, that's how it should be ;D


"Question" when Tp13 is not hooked to anything what should the reading @ Tp11 be?

I am getting a reading of 11.5v, but at this point I'm not sure of anything :o :P ;D
That's to be expexted, the grounding of TP13 was originally ment to force the base of Q1 in the complete circuit, but in the limited form, R4 will keep the base low.


For the next step, add the parts not shaded:

The extra parts marked (V)Rxn is to simulate the varying DC signal from 1/3 to 2/3 of the supply voltage.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #141 on: December 07, 2009, 11:51:40 PM »
Hello Soren

Just need some clarifying of a couple things.

1.TP13 is shaded but is connected to R3. Where did you want that connection to end at? GRD, B+, or does not matter?

2. Rx1, RX2, VRx1 are wired and the center sweep leg on VRx1 shows a range of 4v to 8v.

Now that being said, I am cloudy on where the signal is coming from that is being connected to VRx1. and where am I to bring the signal to pin 5 on IC1B from?

Sorry if this is a silly question ::) Just not clear on the input and output from the VRX1 point.
« Last Edit: December 08, 2009, 09:43:48 AM by wheelyneil »
Take care
Neil

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #142 on: December 08, 2009, 11:37:48 AM »
Hi Neil,

1.TP13 is shaded but is connected to R3. Where did you want that connection to end at? GRD, B+, or does not matter?
Same as before, loose wire that you can touch to B+


2. Rx1, RX2, VRx1 are wired and the center sweep leg on VRx1 shows a range of 4v to 8v.

Now that being said, I am cloudy on where the signal is coming from that is being connected to VRx1. and where am I to bring the signal to pin 5 on IC1B from?
It goes to the connector SV1. It's just for testing - 'scope on TP11 and TP12. When VRx1 is varied, you should see different delays between TP11 and TP12 going low.
The higher the voltage on "Signal", the longer the delay should be.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #143 on: December 08, 2009, 12:33:00 PM »
Hi Neil,

In case you wonder, here's how the entire circuit could be made with a microcontroller: Microcontroller based Governor
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline Daanii

  • Robot Overlord
  • ****
  • Posts: 138
  • Helpful? 3
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #144 on: December 08, 2009, 01:33:34 PM »
I'm enjoying following the development of the motor governor. Back months ago, I was skeptical about a hardware solution. It's been interesting to see how one can be made. Good luck with it.

Just one question. Is the goal of the project to turn wood chips into electricity? That is, gasify the wood chips, use the gas to run the engine, which turns the generator, which produces electricity?

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #145 on: December 08, 2009, 06:14:33 PM »


Quote
Just one question. Is the goal of the project to turn wood chips into electricity? That is, gasify the wood chips, use the gas to run the engine, which turns the generator, which produces electricity?

 

That is the idea and plan. ;D
« Last Edit: December 08, 2009, 06:48:18 PM by wheelyneil »
Take care
Neil

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #146 on: December 08, 2009, 06:44:57 PM »
Hi Soren
Quote
In case you wonder, here's how the entire circuit could be made with a microcontroller: Microcontroller based Governor
Kinda makes things easier ;D now if I could only code.......lol always something ;D  

Are you trying to temp me?  :P




Soren below is a picture of how the circuit is wired right now. Is this correct?

I don't want to be confused at this point with the wiring because I am getting 12v signal @Tp11 but no pulse or voltage change when VRx1 is changed. And on Tp12 shows 0 volts and nothing happens when VRx1 is varied. pin 5 on ICB1 has a 4v to 8volts applied depending on VRx1 level and pin 6 has TP11 voltage.
I have switched out 3 different LM393 with no luck....................HELP! SOS! ??? :'(

« Last Edit: December 08, 2009, 10:24:41 PM by wheelyneil »
Take care
Neil

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #147 on: December 09, 2009, 04:47:56 AM »
Hi Neil,

Kinda makes things easier ;D now if I could only code.......lol always something ;D  

Are you trying to temp me?  :P
Nope, I just wanted to reassure you, that if you find you're running tired of building and testing, this is another solution (or punishment for giving up ;D).

The coding is no problem - 10 to 20 minutes max. (5 is probably more realistic) and the hex file can be posted.

The largest obstacle here is, that you'd have to find someone in your end of the world, that is willing to burn the hex file into the controller, or you could build a very simple programmer, if you have a PC with either a parallel (printer) port or a serial port.


I don't want to be confused at this point with the wiring because I am getting 12v signal @Tp11 but no pulse or voltage change when VRx1 is changed. And on Tp12 shows 0 volts and nothing happens when VRx1 is varied. pin 5 on ICB1 has a 4v to 8volts applied depending on VRx1 level and pin 6 has TP11 voltage.
I have switched out 3 different LM393 with no luck....................HELP! SOS! ??? :'(
That is correctly wired, but you need to use your 'scope on TP11 and TP12 and then touch the wire on TP13 to B+ to get the pulses. Vary the pot and touch TP13 to B+ again for a new pulse.
You are looking for varying delays between the pulses on the two traces.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline Daanii

  • Robot Overlord
  • ****
  • Posts: 138
  • Helpful? 3
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #148 on: December 09, 2009, 01:32:29 PM »
Another option is to use an Arduino. You can write the code in C on your computer, download it to the Arduino's microcontroller through a USB port, and get the circuit to work. Then you could pop the microcontroller out of the Arduino and put it and the other needed components on a circuit board. That would give you a more permanent device.

That's the software option I was thinking of months ago. But you said you cannot code. You can do electronics, and Soeren has spent many hours giving you his help. You're close with this hardware solution. Don't give up now!

Offline wheelyneilTopic starter

  • Robot Overlord
  • ****
  • Posts: 153
  • Helpful? 1
  • FOR GET ABOUT IT
Re: Question! and Help I need to build a v8 engine servo motor governor
« Reply #149 on: December 09, 2009, 05:18:11 PM »
Hi Soren

Quote
That is correctly wired, but you need to use your 'scope on TP11 and TP12 and then touch the wire on TP13 to B+ to get the pulses. Vary the pot and touch TP13 to B+ again for a new pulse.
You are looking for varying delays between the pulses on the two traces.

Well I am at a dead stop! I have checked the wiring and switched out lm393's and still no readings that should be there.

 I Will try again tomorrow. Sorry for the delay but it's just not working yet :-[

 I am going to change out the other components to see if it helps.


I'll redo this again. ;)
« Last Edit: December 09, 2009, 05:21:10 PM by wheelyneil »
Take care
Neil

 


Get Your Ad Here