Thursday, November 14, 2019

Tools

25 July 2018

Static Applicator - Portable

I've seen a few interesting articles on creating static applicators instead of purchasing commercial units, a particularly good one being this video by Luke Towan, so here's my attempt at that...

This is a small version, that might be a little under-powered, but it does mean it can run from a battery or a USB power source.

Parts Required

Construction

1x Air Ionizer Airborne Negative DIY Ion Anion Generator Wired DC12V Output UK eBay £4.79
1x 12V Step-Up/Step-Down Voltage Regulator S10V2F12 HobbyTronics £4.08
1x Small Sieve eBay £2.59
1x PP3 Battery Lead HobbyTronics £0.24
1x Crocodile clip HobbyTronics £0.49
1x Momentary Push Button Switch eBay £2.25
1x Micro USB Male to Female Panel Mount Extension Adapter Cable eBay £1.49
     Total £15.93


Consumables

Static Grass eBay £2.89

Build

The Ion generator has the following specs:

Power requirements DC 12V
Output voltage -4kV ~ -6kV DC
Power use <1W
Anion quantity 15million pcs/cc air at distance 5cm

The properties of the ionizer are fairly vague, and as it's made of pure Chinesium there could be a fair amount of variability. Taking the power and voltage at face-value gives us a rough current requirement of about 80mA.


So that we don't have to use a chunky 12V power supply, we'll use a step-up power regulator. These little modules can take any input voltage between 2.5V and 18V, and output a fairly accurate 12V. They're also tiny. The main specs are:

Input voltage 2.5V - 18V
Output voltage 12V ±4%
Continuous current 200mA
Size 10mm x 15mm x 3mm

It should be a fairly simple case of connecting a battery to the regulator, the regulator to the generator, with a switch between so we can turn the thing off.