The PSUs are HP common slot, the ones used in servers.
The tests I was planning on doing where regulation with load (which should be within 5% for atx) and ripple (120 mVpp for atx).
Regarding inrush current (100 ms max?), I couldn't find the time needed for the overcurrent protection to...
Hi.
I have to test a couple PSUs (ripple, regulation, etc.) that are rated 12 V 62.5 A. In order to do so, I need a test load; I was thinking about using nine 2 ohm 100 W 5% resistors (about 3 usd) in parallel (giving 0.22 ohm 900 w). Taking into account the tolerance of the resistors, I get a...
Thanks, will look into that.
Now I got it, thanks!
You are right, I had some troubles with the sign of IB1; and it should be VE1 in my equation, not VB1.
##V_{E1}=I_{C1}/β_{1}.(R_2+R_3)-V_{BE1}=839.29 μA/325 . (22 kΩ+1 kΩ)-0.66 V=-0.60 V##In my last post I forgot to upload one simulation...
First of all, thanks for replying!
I've attached the results of the simulation that I ran.
For the differential amplifier I found the following (which more or less matches the simulation):
##I_{C1}=V_{EB4} /R_6=0.47 V/560 Ω=839.29 μA##
##I_{C2}=I_1-I_{C1}=1.54 mA##
##V_{B4}=V_{CC}-V_{EB4}=35...
Hi. I'm trying to analyse an audio amplifier circuit (DC, frequency response, stability, etc.).
I began with the DC bias analysis but I'm having troubles finding where to start. I've attached the full circuit and a DC simplified version. I've placed an 8 ohm resistor as the load (8 ohm...