>>118074
Вот что я нашел. Оказывается парить, а тем более прожигать <2 ом койлы на вамо просто НЕЛЬЗЯ.

The Vamo has a 3A limiter apparently. In actual fact it doesn't, but the software on the microcontroller "thinks" it does, and this is the cause of the concern. What the vamo does, is to kick up (or buck down if using stacked batteries) the battery to a regulated 6V, it then uses PWM to square wave that 6V to simulate lower voltages. So the voltage you set on the Vamo is actually fake, all you are doing is adjusting the interval the 6V signal is "ON" for. So we can do a simple Ohms law calculation here for a 2 ohm coil. 6V at 2 Ohms is 3A. So, anything lower than 2 ohms would result in a current draw of MORE THAN 3A during the ON phase of the square wave. This is where the software gets clever, the Vamo is supposed to have current limiting circuitry that prevents a draw of anything over 3A, so what the Vamo does in this case is it changes the way in which it works out the PWM duty cycle on the assumption that there's only going to be 3A going through the atomiser during the PWM, ON phase. In reality, this is not the case, electronics CANNOT ignore ohms law. If using a 1.3 ohm coil for example, the current drain on the ON phase would be 4.62A which is too high. So the Vamo firmware instead assumes that the 3A current limiter will kick in which should reduce the ON phase voltage to 3.9V and it works out the PWM period based on a 3.9V peak voltage instead of 6V. In actual fact this does not happen, the ON phase voltage REMAINS at 6V and does indeed supply 4.62 Amps by over taxing the circuitry.

What all this means is that if you use a Vamo with a coil below 2 ohms you are over-driving the Vamo's control circuitry and the power/voltage you set is much lower than the actual output you are getting. This shouldn't really be an issue for short periods as components usually don't instantly fail when they are over taxed by a reasonable amount. But if used constantly, for example if burning a coil dry, when you may use 3 or 4 full length bursts, it could (and in my case has) burn something out.