Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

H-Bridge Cicuits in Proteus

Status
Not open for further replies.
N

Nevz7

Newbie level 3
Joined
Oct 27, 2010
Messages
4
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,310
Hi All,

I have acquired 2 H-Bridge circuits that i have wanted to simulate in order to assess their validity in use of a design project,
the problem, however is that neither circuit seems to simulate in the proteus isis package,giving an error:"timestep too small". The circuits are attached and it would be greatly appreciated if someone could point out any reason as to why this occurs or if there exists any flaw in the circuit design.
I require the assistance as a proof of design concept via simulation is required before i can purchase any of the components required.

Thank You

H-Bridge 1 Image links:
https://obrazki.elektroda.pl/58_1323431446.png

H-Bridge 2 Image links:
https://obrazki.elektroda.pl/57_1323431251.png
https://obrazki.elektroda.pl/40_1323431251.jpg
https://obrazki.elektroda.pl/1_1323431251.png
 

Can you provide the proteus project so that we may try if we can make it work?

Alex
 

Hi Alex
Would it be suitable if i e-mailed you the schematics?
The files are somehow not being allowed to be uploaded...
 

It is because the forum accepts only specific file types, Zip or Rar the files and they will upload fine

Alex
 

Sorry about that Alex but in any case here are the proteus design files you requested.
 

Attachments

  • Schematics.7z
    20.3 KB · Views: 61
  • DC Motor Control.zip
    36 KB · Views: 112

Your opto diodes are currently floating, you have just used for the diodes a label with the same name as the source but this doesn't provide a connection.

You can hard wire them or use terminals or use wire labels to connect two wires

Alex
 

I've done as you said and hard wired the floating inputs to signals, however I still get a simulation error.
I have done the design rule check and have encountered no errors. Here is the updated circuit as well as the manner in which the bridge is intended to work.
Have I made some kind of other obvious error??
 

Attachments

  • H-Bridge.7z
    14.4 KB · Views: 61
  • Bridge Operation.png
    Bridge Operation.png
    459.6 KB · Views: 84

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top