Vio Ariton

So shouldn't the average for ton be DT(Vin - (D*Vo * R_L)/Ro - Vo) instead

I am talking about this picture i.sstatic.net/XsZUx.png

Then we can also find the average inductor current, which is Vo/R... but why do we use this average for the inductor's average current for ton AND toff, when the average for ton should be D*Vo/R, and (1-D)*Vo/Ro for toff

Hey, in a buck converter, when we take the average inductor voltage for ton and toff, and we also include the inductor's series resistance, we would get (v_L = Vin - i_L*R - Vo), so the average is just DT(Vin - i_L * R - Vo)

Anyone use EasyEDA before - what's the difference between copper area and fill area?

Hmm.. I guess it is for reverse polarity? Otherwise, Q1 would see the voltage at its emitter

is it there just to have a relative stable reference in case the ground is not 0v

Hey, what is the point of the third diode under Q1

So this way I make sure that the output of the buck is high enough for the IC to work

Thank you for your help. I've fixed the issue by adding 2 diode drops in series with the load... apparently, the IC requires the V+ to be at least 3v

But because it ramps up, it doesn't respond the first time it reaches 300 mA

I have an output resistor of 1.2k, so that the feedback voltage is 1.2 V for the buck converter

and stays there

Yes, it ramps to 1 mA and the current drops to 300 mA

I must be doing something wrong

In the datasheet it says us response time

I think it should be ~1mA the first time the current reaches 300 mA

No, it is that it's ramping too slowly

But I expect it to be 1 mA first time the current reaches 300 mA

1 mA and there is but only after a few milliseconds since the current seems to ramp up

And R1 is the resistor between output and ground

R2 is the sense resistor

This one is with the resistor

But looking at the first picture I have sent, it is roughly 150-160 uA at 300 mA load current

With an Rin of 100 ohms, we have (Isense * Rsense)/Rin = (0.3 * 0.3)/100 ~= 1 mA

I expect it to ramp up since the input current is, but the output current is rising slowly

The output current of the sense amplifier is ramping up and it doesn't seem to follow the relation Vsense/Rin

but it still ramps up, weirdly

The output current should be ~800 uA at 300 mA - green is voltage drop across the sense resistor

it does the same

Below is load current, whereas top is the output current from the amplifier. It is designed to have an output current of 1mA at a load current of 300 mA, but it seems the current ramps us to 1 mA

Hey, I've got a current sense amplifier, but it acts a bit weird

I am trying to understand the benefit of using a current mirror as oppose to a single npn

hmm are current mirrors kind of like voltage buffers

it seems there are 3 answers with a current mirror

Why does a current mirror makes more sense in this case? electronics.stackexchange.com/questions/520980/…

Hey I was wondering if nodal analysis would work to solve magnetic circuits. Would I use the N*I as the node "voltage"?

Modulate, yes. Sorry, I'm not used to the laptop's keyboard oof

On their website it says online ubuntu and red hat but I've seen posts that it can be installed on fedora as well?

Does anyone know whether matlab works on fedora

Oh I see, thanks

How did he get from the first part to the second

Hey. Do you guys know if I can evaluate a transfer function at a time t on wolframalpha?