For this circuit we will use 4 5v of power in order to light the uv led.
Uv lamp input voltage.
How to measure lamp voltage.
A typical 100 1 ratio is normally used.
Medium pressure uv lamps do not have a filament.
A resistor is needed so that we can bias and limit the current so that the correct amount flows to the led.
There are 3 three main components in a power supply for uv curing lamp magnetic choke electronic ballast and constant wattage transformer.
This system requires a high voltage amperage power supply typically a magnetic ballast transformer with a high voltage capacitor bank.
Since lamp voltages can exceed the safe measuring range of most meters a potential transformer pt is required.
Ballast input voltage 220vac.
They utilize a high voltage charge to ionize a mercury gas mixture in the lamp creating a plasma that emits uv light.
Capacitive reactance ballasts overcome this problem by the use of capacitors connected in series with the lamps.
To power a uv led all we need is the right voltage and current.
These capacitors maintain a constant voltage output to the lamp even when the input voltage varies and is the more efficient of the two.
Input current to ballast 10 000 0 92 0 90 220 44 47 amps.