H-bridge 12v DC motor

[devatu]

Hi everyone,

I need to make my 12V DC motor (Datasheet : http://www.linearmech.it/linearmech/.../lmr01_eng.pdf) so, that it can turn forward and backward.

I know that this is possible via an H-bridge, and I have a Motor controller with one on it available. The motor controlle is this one :http://www.voti.nl/dwarf/doc/DB021.pdf.

What do I need to do to let it turn forward and backward? I googled Hbridges many times, and soldered it in many ways, but still can't manage to get it working. Thanks in advance.

 

[(*steve*)]

Here is a description of the basics in a relatively simple form.

Here is another description. You need to know that shoot-through is very bad.

Here is another one.

And here are a whole lot of designs.

 

[KrisBlueNZ]

Once you've decided on a design to use, if you can't get it working, post the following information:

1. The schematic diagram you worked from
2. A list of any changes you've made (component substitutions etc) from that diagram
3. A photo of your construction
4. A list of the voltages you measure at the inputs and outputs of the H-bridge.

 

[Colin Mitchell]

The motor controller you have specified is only 2 amp as H-bridge. You need between 4 - 8 amps and preferably up to 20 amp.

 

[Fish4Fun]

devatu,

At the risk of over-simplifying your project, are relays an option? I know they aren't really popular with the savvy electronics crowd, but sometimes they are still a best-fit solution.....I mean who doesn't love a high tech H-Bridge with synchronous rectification, Active Power Factor Correction, cool bi-color flashing LEDs, programmable soft limits and an Auxiliary I-Phone charger? .....but if you just need a linear actuator to cycle from one limit switch to another and you can live without the bells and whistles relays are likely going to provide a cheap and easy solution.....

Fish