VV/VW Running more that 4.2v from a single battery

[mcilwainmatthew]

What I really don't seem to understand is how a VV/VW device can run more than 4.2 volts from a single battery. Rip Trippers is one person who I think is guilty of not realizing this. If I am wrong about this then please tell me, and tell me why.

 

[Susan~S]

Hello and welcome to the forum mcilwainmatthew. Glad to have you here!

VV/VW batteries can run at higher voltages because of the circuitry in the battery (buck-boost converters). Basically the chip takes in power from the battery and stores it in a capacitor. When the stored energy reaches the potential (voltage) it dumps out to the atty.

DC Boost Converter
Buck-Boost Converter

 

[Katya]

Understanding Variable Voltage Electronic Cigarettes

Variable-voltage electronic cigarettes use 3.7-volt batteries, just like standard electronic cigarettes. The difference is in the fact that a variable-voltage e-cigarette includes a booster circuit that stores and regulates power from the battery, delivering it to the atomizer or cartomizer at the voltage you select.

Many variable-voltage e-cigarettes also include microprocessors for safety and precise control over vapor production. These advanced internal electronics often make variable-voltage e-cigarettes more expensive than standard e-cigarettes.

She beat me to it again.

 

[mcilwainmatthew]

I'm guessing this is the reason why pulse width modulation is required. It gives the booster time to store up energy then delivers it to the coil, stores and delivers.Of course it does it very fast, am I on the right track with this thinking?

 

[edyle]

What I really don't seem to understand is how a VV/VW device can run more than 4.2 volts from a single battery. Rip Trippers is one person who I think is guilty of not realizing this. If I am wrong about this then please tell me, and tell me why.

It's electronics. And it's not a flat dc output. It's more like a chopped dc output

 

[K_Tech]

I'm guessing this is the reason why pulse width modulation is required. It gives the booster time to store up energy then delivers it to the coil, stores and delivers.Of course it does it very fast, am I on the right track with this thinking?

Yes, you are absolutely on the right track!