Know little about electronics but I am keen to learn more.
I am trying to come up with a solution for a radio controlled car whose stock electronics will handle a maximum of about 8V. I would like to use the stock electronics to drive an auxilliary H-Bridge that could handle a max of 15V (peak load of approx 20A). Stock electronics use an H-bridge to drive brushed motors.
There are a number of commercially available products that can do this.
One is from AtomicMods, the V2 (**broken link removed**). This reads the output from the leads that would normally go to the motor to drive an H-Bridge. Main advantage is that you don't have to modify the stock electronics to use it.
The other product is called Spider (**broken link removed**. This one requires you to remove the stock FETs and wire the H-Bridge gates on the stock electronics to the Spider (which is possibly a stacked FET H-Bridge).
Both products allow forward, reverse, braking and coasting.
I am wondering if there is a combination solution possible by simply taking the drains from the stock H-bridge and using these as the gates on an auxilliary H-bridge. Could the drain outputs (the motor leads) from one H-Bridge be used as the gate inputs for a second H-bridge? (I understand that there would have to be some logic involved to allow for the polarity changes as you go from froward to reverse).
Thoughts / Comments / Thanks.
I am trying to come up with a solution for a radio controlled car whose stock electronics will handle a maximum of about 8V. I would like to use the stock electronics to drive an auxilliary H-Bridge that could handle a max of 15V (peak load of approx 20A). Stock electronics use an H-bridge to drive brushed motors.
There are a number of commercially available products that can do this.
One is from AtomicMods, the V2 (**broken link removed**). This reads the output from the leads that would normally go to the motor to drive an H-Bridge. Main advantage is that you don't have to modify the stock electronics to use it.
The other product is called Spider (**broken link removed**. This one requires you to remove the stock FETs and wire the H-Bridge gates on the stock electronics to the Spider (which is possibly a stacked FET H-Bridge).
Both products allow forward, reverse, braking and coasting.
I am wondering if there is a combination solution possible by simply taking the drains from the stock H-bridge and using these as the gates on an auxilliary H-bridge. Could the drain outputs (the motor leads) from one H-Bridge be used as the gate inputs for a second H-bridge? (I understand that there would have to be some logic involved to allow for the polarity changes as you go from froward to reverse).
Thoughts / Comments / Thanks.
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