Low-power flyback switching power supply, start-up resistance 560K, start capacitor 22uF, I would like to ask the power after charging the capacitor to 12V how much time how to calculate
Q = i * t = C * V
=>
T = C * V / i
And i = 300 / 560k (div)
=>
T = (12 * 22 * 10 ^ -6) / (300 / (560 * 1000))
= 0.49 seconds
Q = i * t = C * V
=>
T = C * V / i
And i = 300 / 560k (div)
=>
T = (12 * 22 * 10 ^ -6) / (300 / (560 * 1000))
= 0.49 seconds
U = U [1-e ^ -t / (RC)] => 12 = 300V [1-e ^ -t / (560000 * 0.000022)] => 12 = 300V [1-e ^ 2.2)
Solve t can be.
Calculation of Capacitance Charging Time
