The current plan is to have the E-stop kill the entire power system. We're having trouble finding an E-stop that is both small and that can handle the full load current.
Jesse Chen, Mechanical VP, asked if we could implement an E-stop that is powered by a AA/AAA battery. This e-stop would drop out the signal for the contactor coil, rather than switching the lines themselves.
This is allowed now by the competition. After we contacted them, they created a new rule stating that you could have small power sources still live after you hit the e-stop. We will take advantage of this if we can make it work.
The task is to design a circuit that can kill the power to the full suit with an e-stop that switches contactor control power. Similar to the contactor we already planned to use, this system would likely need to switch the e-stop through an intermediary mosfet.
Please ask questions if you have any.
The current plan is to have the E-stop kill the entire power system. We're having trouble finding an E-stop that is both small and that can handle the full load current.
Jesse Chen, Mechanical VP, asked if we could implement an E-stop that is powered by a AA/AAA battery. This e-stop would drop out the signal for the contactor coil, rather than switching the lines themselves.
This is allowed now by the competition. After we contacted them, they created a new rule stating that you could have small power sources still live after you hit the e-stop. We will take advantage of this if we can make it work.
The task is to design a circuit that can kill the power to the full suit with an e-stop that switches contactor control power. Similar to the contactor we already planned to use, this system would likely need to switch the e-stop through an intermediary mosfet.
Please ask questions if you have any.