#Mos vs scroll reverser how to
#Mos vs scroll reverser install
#Mos vs scroll reverser free
#Mos vs scroll reverser windows

Since you don't feel that you can share the MOSFET gate drive circuit, I really can't say a whole lot on the capability of it but with that large a gate charge you will need a very capable gate driver. The trade-off is that the MOSFET will spend much less time in the linear region, for an increase in Rds(on), as you really can't reduce the Vdss requirement by much. You should also consider replacing that P-ch MOSFET with one that has a much lower gate charge. If you can implement a Hall-effect feedback instead of the sense resistor, you may be able to salvage the existing circuit and you will reduce the total power dissipation as the sense resistor can be replaced with a zero Ohm resistor. This makes the fixed delay option far less attractive than monitoring the actual current flow through the inductor. As the capacitor charges, the voltage across the inductor will decrease correspondingly, so current flow will increase more slowly, so the discharge time will be less. If the capacitor is completely discharged, the voltage across the inductor will be at its' maximum, so current flow through the inductor will increase at the highest rate which will take longer to fully discharge.

That discharge time will vary depending upon the actual inductance, the actual voltage applied across the inductor, and how long the voltage was applied. If you're going to keep the scheme with the current sense resistor on the source terminal, then you will be forced to implement a fixed delay to allow the inductor to fully discharge. That way you will be monitoring the actual current flow in the inductor, rather than current flow into the MOSFETs' source terminal. Other great apps like Smart Scroll are Yet Another Smooth Scrolling, MouseImp, SmoothWheel (AMO) and Scroll Reverser.

#Mos vs scroll reverser free

The best alternative is MOS, which is both free and Open Source. Get rid of the 1 Ohm current sense resistor, and use a Hall-effect sensor that is in the path of the loop, after the reverse EMF diode connects to the drain/inductor junction. There are six alternatives to Smart Scroll for Mac, Windows, Linux and Firefox. You will need to scrap or retrofit/re-work any of the existing circuits. If the design is already in production, then you have a big problem. All I know is that the cap 'looks' electrically like a dead short when it is not charged and without some viable method of current limiting, you will continue to roast MOSFET after MOSFET. I have no clue what size cap you are charging up. You will also need a diode across the inductor and the load, as when the MOSFET turns the inductor current off, the inductor will try to keep the current flowing, resulting in the polarity across the MOSFET reversing, and the voltage to reach a very high peak, which will destroy either the load, the MOSFET, or both. If you do not allow sufficient time for the inductor to discharge, you will again wind up with a heating problem. Once the voltage across your 1 Ohm resistor reaches the threshold, you will then need to turn the MOSFET off for a period long enough to completely discharge the inductor.

Otherwise, the capacitor 'looks like' a dead short to ground to the MOSFET you will not be able to turn the MOSFET on and off quickly enough to prevent it from heating up.Īdding an inductor will cause the current flow through the MOSFET to start at zero, and then (relatively) slowly build up. Click the button “Needs access to Accessibility controls”.You need an inductor between the MOSFET drain and the capacitor. It would need access to Accessibility Controls.

Once the app is installed, run the app and it would show up in the Menu Bar. Simply click and drag the Mos icon onto the Applications folder right next to it. It would open up a window as shown below.

#Mos vs scroll reverser install

Once you have the file downloaded, install it to your macOS. Go ahead and install the utility from the website using this link. Now that we’ve covered the basics, let’s move forward to the actual tool that would solve our problem. Mos is a simple utility app that lets you set a scroll direction for the external mouse independent of the trackpad.

#Mos vs scroll reverser windows

That’s it, your trackpad and mouse will scroll in the non-natural direction.Īlso Read: 5 Ways to Snap Windows on macOS with Ease Set Different Scroll Direction For Mouse And Trackpad Under the Scroll & Zoom tab, uncheck the box next to “Scroll direction: Natural”. Navigate to the Settings app on macOS, click the Trackpad icon from the list.

#Mos vs scroll reverser how to

So, if you’re fine with losing the sense of direction on either of your pointing devices, here’s how to change it. For example, you can get the mouse and the trackpad to scroll naturally but you can’t have your trackpad scrolling naturally and your mouse scrolling the opposite way.

Set Different Scroll Direction For Mouse And TrackpadĪlthough macOS has an option to change the scroll direction for mouse and trackpad, you can not change that setting independent of the other.