BTS7960B - Motors & Control

RE: BTS7960B

triform — Wed, 24 Jul 2019 12:46:50 +0000

Posted by: @sdey76
Cytron
Mosfet drivers
Bipolar transistor ones
Best is the cytron..

Yeah, I have the two-channel Cytron board as well. It was on my home nave bot, but I switched it out for a Pololu Qik 2s12v10 I got for cheap. I'll find the Cytron a home soon!

RE: BTS7960B

triform — Wed, 24 Jul 2019 12:41:59 +0000

Posted by: @sdey76

I have used this motor driver...
This is good take care of heavy duty motors and has no heating issues.

Both Enable pins need to be high to make pwm command.

Yeah, I figured that out last night on the bench. I first pulled one high and the other low and the PWM high, but nothing. Then pulled both high and magic happened. :)

RE: BTS7960B

soumitra — Wed, 24 Jul 2019 12:04:20 +0000

Cytron

Mosfet drivers

Bipolar transistor ones

Best is the cytron.. 243,13

RE: BTS7960B

soumitra — Wed, 24 Jul 2019 11:52:25 +0000

I have used this motor driver...
This is good take care of heavy duty motors and has no heating issues.

Both Enable pins need to be high to make pwm command.

RE: BTS7960B

triform — Wed, 24 Jul 2019 02:39:36 +0000

Well, bench tested. Both work there. Now for a bot.

RE: BTS7960B

Robo Pi — Tue, 23 Jul 2019 19:38:07 +0000

Triform has gone where no man has gone before
and due to his travel the truth will unravel
and the forums will discover the score

We honor your gallant devotion
and wish you the best in your electronic quest
to solve the problems of motion

RE: BTS7960B

triform — Tue, 23 Jul 2019 19:18:18 +0000

@robo-pi

I hope they work. Been eyeing them for a few years. The price dropped low enough to try it out.

RE: BTS7960B

Robo Pi — Tue, 23 Jul 2019 19:12:12 +0000

Posted by: @triform
I added a bit of thermal paste and will see how it goes.

Good idea. That should keep her cooler. ?

RE: BTS7960B

triform — Tue, 23 Jul 2019 18:59:56 +0000

I got a bit curious if there was anything under the heat sink, so I took them off. Nothing... File not found. :)

238

No thermal pad, just though holes. I added a bit of thermal paste and will see how it goes.

237

Scott

RE: BTS7960B

triform — Tue, 23 Jul 2019 03:15:25 +0000

Well, I broke down and purchased two of these motor drivers. Got them From alice1101983, but from their AliExpress site and not eBay. Alice shipping to the US is very pricy on the eBay listings but reasonable on the Ali site. I don't expect free, but not really like getting robbed :) They were @5$ USD each.

Anyway, one arrived with a terminal yanked off the PCB :( I hope this is not a sign of bad things to come with them.

Here they are:

234,233

Notice the newly installed terminal on one.

I will test them probably this weekend on the bench and then a test chassis I have and will report back. I hope they work great and deliver at least half the rated current :)

Scott