1. salhi

    Finding the cutoff frequency of regulator

    Let the following transfert function : C(p) = 0.5926 \frac{1+1.205p}{1+0.4233p} = K \frac{1+a \cdot \tau p}{1 +p \cdot \tau p} with a = 2.848, \tau = 0.4233, K = 0.5926 the marge of phase of this corrector is 28.7° i want to find the cutoff frequency of this correct, the answer was already...
  2. Doktor Jones

    Using a zener to protect a MOSFET?

    I'm looking to use an optocoupler+MOSFET to switch "undefined" DC power sources; the opto I'm looking at is FOD817D and the MOSFET is FDPF55N06. The power sources may range from 5V (USB power) to 24V, but I could see this being used to switch as high as 36V at some point in the future, and...
  3. J

    Designing a stable and self-regulated halogen light source

    Need Statement (Not a lot of experience with power electronics, apologies). I need to power a low-voltage halogen lamp (OSRAM 64328 HLX, 65W, Nominal voltage 9.8V, 6.6A) with a 230V AC source. Additionally, I need to have the capability to digitally control the powering of this lamp, which I...
  4. J

    How do I manage voltage regulation for variable input

    Hey all! I'm trying to build an LED frequency counter. My input signal is an LED I'm using as a detector recieving from an output LED on my signal generator. I'm using square wave output to emulate pwm and my circuitry is going to process the signal to output a 5v logic output that can be read...
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