Rangkaian power supply sederhana

Ane kalo bikin atau desain sesuatu yang ane pusingin selalu power supply buat rangkain. Output gak gede-gede amat sih Ini hasil pencariannya.

sumber : https://circuitdigest.com/electronic-circuits/transformerless-power-supply

Kurang lebih rangkiannya yang banyak beredar kaya gini, masalh output bisa diganti nilai 

Rumus standar capasitornya:

X = 1 / 2¶fC

X = Reactance of Capacitor

f = frequency of AC

C = Capacitance of X rated capacitor

We have used 474k means 0.47uF capacitor and frequency of AV mains is 50 Hz so the Reactance X is:

X = 1 / 2*3.14*50*0.47*10-6 = 6776 ohm (approx)

Now we can calculate the current (I) in the circuit:

I = V/X = 230/6775 = 34mA

So that’s how the Reactance and Current is calculated.