Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Recent content by Akanimo

  1. A

    Calculating inductor value for buck converter using XL1509 IC

    At first sight, please review your Vinmin. You can't achieve a boost with a buck converter.
  2. A

    Circuit voltage calculation

    Voltage at node A depends on voltage at node B. Voltage at node B depends on VRAW. With the pwm signal driving the FET, the FET is ON some times (and VB is VRAW*(475k||4.7M)/(2.4M+(475k||4.7M))) and OFF at other times (and VB is VRAW*475k/(2.4M+475k)). However, if you say node VRAW is not an...
  3. A

    KiCad PWR_FLAG question

    In addition to this, change the name of your global labels from +5V and -5V to different names, just like betwixt has pointed out, so they do not connect to the +5V and -5V power supply symbols and short out R7 and R8. This is because a global symbol with name being the same as the value of a...
  4. A

    KiCad PWR_FLAG question

    Just connect a +5V power supply symbol to the pwr_flag connected to the R7 and connect a -5V power supply symbol to the pwr_flag connected to the R8.
  5. A

    Buck - Boost converter with Ir2110

    Where are you getting the 15 V Vcc from?
  6. A

    Buck - Boost converter with Ir2110

    Hi, Show your actual schematic so the problem can be tailored. For instance, your schematic is not showing the VS pin of the IR2110 being connected to the source of the MOSFET.
  7. A

    understanding inductor behavior in switching threw simulation question

    The current decays with an inverse s-curve profile which exhibits a point of inflexion, so the voltage does not necessarily have a discontinuity. The voltage just grows to a peak and then decays to a new value, which can be 0 V ( with value depending on duration).
  8. A

    [SOLVED] Controlled Frequency and Phase Shifts

    I am not comfortable the way you generated your triangular wave. It seems like your code would generate 'temp' in the sequence 0,...,511,511,...,0,0,...,511,511,...,0,0,... Your integer range is -512 to +511. Why not use SIGNED data type, reset to 0, and then alternately increase to upper...
  9. A

    LC Filter Query

    Your circuit shows an ideal LC filter with no resistance. This can still be analysed though. Let's lay out some characteristics of this circuit. Vin, L and C are in series, so the same current, I, flows through them. Vout = I*1/(sC); Vin = I*sL + I*1/(sC). Solving for transfer function for...
  10. A

    understanding inductor behavior in switching threw simulation question

    And to add to this, the duration that the voltage spike is the time it takes for the current to decay from its initial value (at the instant where the switch was opened) to it's final value (which can be down to 0 A). 1743895592 I should have added here that the voltage spike we observe is as a...
  11. A

    LC Filter Query

    The resonant frequency is where the inductive reactance and the capacitive reactance equal eah other. If you plot the capacitive reactance and the inductive reactance on a log-log graph, then you find that the frequency at which they equal is the frequency where the two poles of the filter are...
  12. A

    understanding inductor behavior in switching threw simulation question

    Let's take a charging inductor for an example. Let the final inductor current be Io. iL = Io*(1-e^(-R*t/L)) = Io - Io*e^(-R*t/L) diL/dt = 0 - Io*e^(-R*t/L)*-R/L = Io*R*e^(-R*t/L)/L VL = L*diL/dt = L*Io*R*e^(-R*t/L)/L = Io*R*e^(-R*t/L) = (Io*R)*e^(-R*t/L) You can verify this with simulation by...
  13. A

    [SOLVED] Multiple varying delays to signals in VHDL

    Great. I have not used "wait until rising_edge(clk);" before and I didn't think of even looking at it since it seemed like the clock was working. Altogether, it was a good engagement. Thank you.
  14. A

    [SOLVED] SPWM Generation

    It's good that you found a way to resolve the issue because for one like me, I only download nor open zip files in certain circumstances. I think that posting your codes with the code tags provides more confidence to those who want to review it.
  15. A

    [SOLVED] SPWM Generation

    Do you get any warnings during synthesis? 1743652085 You can also take a look at the generated schematic to see whether the outputs were actually connected, or whether it synthesized to an empty block.
See more

Part and Inventory Search

Back
Top