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Recent content by ricperes

  1. R

    PWM frequency and LC filter

    The PWM is created by comparing a Sin 50HZ with a tringular 10Khz
  2. R

    PWM frequency and LC filter

    I made a RC filter with R=200ohm and C= 2.2uF, I want to filter this PWM in the figure with 10k frequency, and get a Sinusoide with 50hz, but in this case I loss amplitude how i can do this???
  3. R

    PWM frequency and LC filter

    I will try this tips! So i have used a Fc= 701 hz because i use a geometric mean sqrt(50* 10000) I use a RL // C, what you suggest?
  4. R

    PWM frequency and LC filter

    Another question , when I use a RLC filter I notice that the sinusoidal wave after filter loss amplitude, how I can reduce this attenuation?
  5. R

    PWM frequency and LC filter

    Warpseed, can you show me a reference about how to choose a cutoff frequency please?
  6. R

    IGBT module, with IR2110 driver

    Igbt module IXYS MKI 75-06A7 Hello, someone knows or some has a schematic , for how i can connect this IGBT module to a IR2110. thanks
  7. R

    IGBT module, with IR2110 driver

    Yes , i confirm all grounds are separated . I was thinking, that maybe is the IGBT module that are crashed, how i can confirm if this is fine or not?
  8. R

    IGBT module, with IR2110 driver

    Thanks for help, can you change the schematic in Paint to I understand better please?
  9. R

    IGBT module, with IR2110 driver

    I made some changes and now the circuit is this: and the result output o osciloscope is: The output should be V+ and V- alternating, but isn't.... I connect all grounds , i think that Q1 isn't working
  10. R

    IGBT module, with IR2110 driver

    I don't know, I have tested this schematic , and had good results, but i don't know why, crashed...
  11. R

    IGBT module, with IR2110 driver

    Hello, i need help, because i don't know what i'm doing wrong. I just made this schematic, and had good results, however an overnight ceased to work and not know why. Already replaces drivers IR2110, and still have short-circuit the source. I connect de Resistence R3 and R4 to the pins...
  12. R

    IGBT modules + IR2110 + arduino

    thanks So what is the best way to implement a SPWM in arduino?
  13. R

    IGBT modules + IR2110 + arduino

    Re: IR2110 driver + arduino void loop() { for (t = 0; t < 10; t = t + 0.001) { Uref = sin(2 * PI * 50 * t); notref = -1 * sin(2 * PI * 50 * t); carrier = ((2 / PI) * asin(sin(2 * PI * 10000 * t))); if (Uref >= carrier) { digitalWrite(10, LOW)...
  14. R

    IGBT modules + IR2110 + arduino

    Re: IR2110 driver + arduino I replaced the analogWrite by DigitalWrite. but you said that y=arcsin(sin(x)) is the samething of y=x., but when i plot a graphic in matlab for example, the results are different
  15. R

    IGBT modules + IR2110 + arduino

    Hello, i need some help please, What I do is create PWM signal on Arduino and through the IR2110 driver, control this IGBT module that is in the picture, I have tried to use this schematic but not sure I will give good results, someone tried it?
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