I've a question regarding the inductor selection in a boost converter.
In this TI App note under Inductor Selection on page 3, it is asking to assume the inductor ripple current as a percentage of OUTPUT CURRENT.
This is a general circuit of a boost converter below,
In the above circuit, we can see the inductor is connected to the input voltage. So, should the inductor ripple current be calculated as a percentage of input current? Below, I have attached a snap shot from the TI App note.
In the datasheet of the A80604 LED driver, on page 36, step 4c, they have calculated the inductor ripple as a percentage of the input current.
Below, I have attached the snapshot from the A80604 LED Driver Datasheet.
So, which one should be followed? Inductor ripple current based on input current or output current?
Similarly, for the boost converter forward diode (shown in the above image,) the forward current (need to calculate for the diode power dissipation) would be the output current of the boost converter only, right? It cannot be the input current, right?