Hmm just what I was thinking, it needs something easy to pull out near the back. Yes I have disconnected my helicopter with my home made battery kill thingy, and the blades have disconnected my head whilst doing so
I had considered another way using power Mosfets with a tiny switch to turn the Mosfet gate on, but as yet not got around to it, a small 90A mosfet should nail it ;-)
Ah sorry.. a Mosfet is a type of transistor, same as used in the ESC's. Using a 90A one (or 2 in parallel) will handle all the power you need. It just requires one resistor to 'pull' the gate (the pin that turns it on) to 0 Volts, then use a small switch to switch the battery volts to this gate.. this turns it on. Much lighter than a high current mechanical switch.
@ianturner13 I'm sorry i know this is old but i completely disagree that this would be good for a heli, plane maybe. Your problem is that you want a fast, safe, and easy way to cut/toggle power to your heli. Well, your reasoning is that this switch does those things but it absolutely does not. "very quickly and easily, especially if the rotors are still spinning at you..." if the rotors are still spinning at you then why is it on the bottom of the fuse?
@wawcoldfire crawling under the blades does not sound easy or safe. i think a better idea would be to have a simple power switch near the tail section.
Hmm just what I was thinking, it needs something easy to pull out near the back. Yes I have disconnected my helicopter with my home made battery kill thingy, and the blades have disconnected my head whilst doing so
bloodyniceben 2 months ago
I had considered another way using power Mosfets with a tiny switch to turn the Mosfet gate on, but as yet not got around to it, a small 90A mosfet should nail it ;-)
Steve
HeliEye 3 years ago
Hi Steve
You got me there, what's a mosfet then ??
I suspect some form of small relay, but where can you get these ?
Ian
ianturner13 3 years ago
Ah sorry.. a Mosfet is a type of transistor, same as used in the ESC's. Using a 90A one (or 2 in parallel) will handle all the power you need. It just requires one resistor to 'pull' the gate (the pin that turns it on) to 0 Volts, then use a small switch to switch the battery volts to this gate.. this turns it on. Much lighter than a high current mechanical switch.
Steve
HeliEye 3 years ago
Nice Mod.. like they say.. the simplest ideas are the best :-)
Steve
HeliEye 3 years ago
Thanks HeliEye
In all truth I have to admit it was a fellow member on the Heliguy forum that suggested this method, but I was the first to implement it fully ;-)
ianturner13 3 years ago
@ianturner13 I'm sorry i know this is old but i completely disagree that this would be good for a heli, plane maybe. Your problem is that you want a fast, safe, and easy way to cut/toggle power to your heli. Well, your reasoning is that this switch does those things but it absolutely does not. "very quickly and easily, especially if the rotors are still spinning at you..." if the rotors are still spinning at you then why is it on the bottom of the fuse?
wawcoldfire 5 months ago
@wawcoldfire crawling under the blades does not sound easy or safe. i think a better idea would be to have a simple power switch near the tail section.
wawcoldfire 5 months ago