Spark switch
- Thread starter jpc6000
- Start date
?? you really need more detailed specs to be sure, whats the duty cycle on sustaining a 70a load through the relay, it could be seconds?? designed for ignition type use??
also im sure your aware those 433mhz switches use open static codes so are the easiest to sniff (can be done with $5worth of off the shelf electronics and a 5v usb supply aka a powerbank)
also im sure your aware those 433mhz switches use open static codes so are the easiest to sniff (can be done with $5worth of off the shelf electronics and a 5v usb supply aka a powerbank)
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I'm big fan of Ukraine, I should even go to fight against stupid Russian 
Thanks that 433mhz is not save, but for e-bikes use always a lock.
I misunderstood spark switch
I shall use these on/off spark switch and with small remote control
I have spintend vesc controller, don't need spark switch, is installed in controller
I should be nice if the controller through Bluetooth could be activated
Is also good security against theft.
Thanks that 433mhz is not save, but for e-bikes use always a lock.
I misunderstood spark switch
I shall use these on/off spark switch and with small remote control
I have spintend vesc controller, don't need spark switch, is installed in controller
I should be nice if the controller through Bluetooth could be activated
Is also good security against theft.
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chuyskywalker
10 kW
The controller you are referenceing:
spintend.com
Does not have an anti-spark protection built into it. In fact, they sell an anti-spark solution:
spintend.com
---
To rollback a second, a anti-spark solution is designed to prevent the massive, sudden inrush of high current when you connect a battery to a controller. Specifically, the capacitors in the controller have very low capacity, but extremely high draw such that when connected to a power source, if they are not constricted by a resistor, they will cause a massive power draw spike and, often time on the connectors, a spark of electricity (along with an alarming "pop" noise).
The most common "low tech" anti-spark is an XT-90 with built in anti-spark which has a resistor built into the plug. Thus as you make the connection, the resistor pathway completes first, allowing for a non-sparking charge of the caps, and once the connection is made further, it find a non-resistor pathway for high amp flow. (Putting real load through a resistor will burn it out ;D)
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If what you are really after is a remote on/off button, there's a simpler solution:
With the spintend vesc there is an "ignite" port. If the battery positive is connect to the K+ ("key"), then the controller will turn on. You could use the above remote switch to interrupt and connect the b+/k+ connection. You'll need a dc/dc step down to power it (battery -> dc/dc -> unit), so watch out for that minor draw being always on.
Single ubox Aluminum Lite controller 100V 100A based on VESC
Warning: Can't support Regen function when 22S battery is full charged! Electircal Spec: Firmware : compatible with vesc official firmware (Firmware Name in vesc tool: UBOX_SINGLE_100) Voltage: up to 22s, voltage spike should not beyond 93V Current: 100A max (The duration depends on the...
spintend.com
Does not have an anti-spark protection built into it. In fact, they sell an anti-spark solution:
Multifunctional 80V 30A-180A Congigurable Efuse with Antispark Switch
Warning: Always plug your ESC to the E-fuse first, then plug the E-fuse to your battery/power source. Never plug your ESC into an E-fuse which is already powered on. Otherwise will cause spark and may damage the E-fuse or your devices. All in one function It's an electroinc fuse, much quicker...
spintend.com
---
To rollback a second, a anti-spark solution is designed to prevent the massive, sudden inrush of high current when you connect a battery to a controller. Specifically, the capacitors in the controller have very low capacity, but extremely high draw such that when connected to a power source, if they are not constricted by a resistor, they will cause a massive power draw spike and, often time on the connectors, a spark of electricity (along with an alarming "pop" noise).
The most common "low tech" anti-spark is an XT-90 with built in anti-spark which has a resistor built into the plug. Thus as you make the connection, the resistor pathway completes first, allowing for a non-sparking charge of the caps, and once the connection is made further, it find a non-resistor pathway for high amp flow. (Putting real load through a resistor will burn it out ;D)
---
If what you are really after is a remote on/off button, there's a simpler solution:
With the spintend vesc there is an "ignite" port. If the battery positive is connect to the K+ ("key"), then the controller will turn on. You could use the above remote switch to interrupt and connect the b+/k+ connection. You'll need a dc/dc step down to power it (battery -> dc/dc -> unit), so watch out for that minor draw being always on.
