Deok 3-36V Dual Way Motor Drivers Module 10A DC H-Bridge Motor Driver PWM Module Circuit Board MOSFET Driver Motor Driving Board with Brake Function

This board has very good parasitic capacitance and parasitic inductance protection (all those little capacitors and things on the board) so that it runs very smoothly at a whole range of frequencies. Because it supports pulse width modulation (PWM) so well it can have a whole variety of frequencies running through it - and in home made circuits these can cause oscillation, loss of power or even complete malfunction. Well done designers of this board. It works just as well with the Pi as with the Arduino. Use it to switch and reverse all manner of coils, motors, fans and other high current devices. Do take a little care to run it up to 99% PWM but not 100%. Also do take a little care to understand the V-I graph for the output transistor, the IRF3205 MOSFET -- it works well at high current or high voltage, but if you want to do both there is a trade off. See the data sheet for the IRF3205. Turn to page 4 and scroll down to "Fig 8. Maximum Safe Operating Area". Follow this and they run beautifully cold - room temperature, unlike BJTs. And the cost is pleasing unlike IGBTs.

top quality product. fast delivery time. product.great service. Highly recommended seller will shop again 5 stars all round many thanks.

I managed to figure out how it worked in spite of the poor documentation provided. Vendor should provide better instructions and documentation for what is actually a pretty decent build-quality product for the price.

Does not work, do not buy!Logic pins cannot be driven by an ardunio eitherHeat sink reccomended for anything above 1A

Note that the 100% PWM is *not* supported.With 100% PWM inputs the module behaves very oddly. For example, with a supply of 10V, PWM connected to +5V, and DIR connected to either 0V or +5V, the output is 0.0V, 8.8V, or 9.9V. If it is 8.8V then removing the load and reconnecting it can cause the output to change to 0V, and vice versa. I don't know whether the 8.8V output can lead to excessive power dissipation in the output devices.Presumably transitions in the PWM inputs are used for some onboard purpose and are therefore mandatory. However, this means that, unlike with most H bridges, (a) loads cannot be switched completely on, and (b) the drive software / circuitry must be configured to never drive with a PWM of 100%.The description of the 10A version does state that only 0% to 99% PWM is supported, though the description of 15A version does not.Another problem is that the "brake function and energy feedback" facilities are not documented.A cicuit diagram would be useful (essential?) for getting a good understanding of the module. The chip labelling has been scrapped off, making tracing the circuit difficult.

Works great. quick delivery

I use it to control a peltier element. Which draws up to 5A. It's really recommended to put heatsinks on the mosfets. or else they're gonna fry