Hi all,
My main board on my Floor cleaner/scrubber (Tineco Ifloor2) went out & I got tired of waiting for the battery to charge so I just converted it to run on my Ryobi batteries.
Everything works great except the solution sprayer. It's a 13 ohm load, it seems to be a type of solenoid as it only sprays for about 1 second then stops spraying, but it will continue to pull current as long as power is applied.
The OEM board must have had a type of timer on it. I need a solution that will be positive edge triggered so when I first squeeze the trigger it will apply power to the solenoid then shut off within 1 second and only turn back on when I release then press the trigger again.
Initially I tried a 555 monostable circuit to drive a transistor but realized it won't work because if I continue to hold the trigger down it will continue to apply power and burn up the solenoid.
I also though just a switch would work but figured the contacts would burn up as it pulls over 1.5A and arcs.
Any suggestions/solutions or ideas will be greatly appreciated.
My main board on my Floor cleaner/scrubber (Tineco Ifloor2) went out & I got tired of waiting for the battery to charge so I just converted it to run on my Ryobi batteries.
Everything works great except the solution sprayer. It's a 13 ohm load, it seems to be a type of solenoid as it only sprays for about 1 second then stops spraying, but it will continue to pull current as long as power is applied.
The OEM board must have had a type of timer on it. I need a solution that will be positive edge triggered so when I first squeeze the trigger it will apply power to the solenoid then shut off within 1 second and only turn back on when I release then press the trigger again.
Initially I tried a 555 monostable circuit to drive a transistor but realized it won't work because if I continue to hold the trigger down it will continue to apply power and burn up the solenoid.
I also though just a switch would work but figured the contacts would burn up as it pulls over 1.5A and arcs.
Any suggestions/solutions or ideas will be greatly appreciated.