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Recent content by innovetion

  1. I

    [moved] Maintain v/f ratio in pic microcontroller output

    I understand the concept. But how to create that "algorithm" in microcontroller?
  2. I

    [moved] Maintain v/f ratio in pic microcontroller output

    I have generated 6 pwm pulses successfully. Now only v/f is remaining. Need your suggestions for that....
  3. I

    [moved] Maintain v/f ratio in pic microcontroller output

    Hi abc_de, Thanks for replying. Yes I want to control 3 AC phase induction motor. I have generated PWM pulses on my GPIO. Now I want to generate pulses with v/f.
  4. I

    [moved] Maintain v/f ratio in pic microcontroller output

    Hello, I am using PIC18f4550. My aim is to control AC induction motor. For that I have generated required PWM pulses for required frequencies. But I need to maintain V/F ratio at the output. Which I am unable to do. Please suggest me.
  5. I

    Memory issue in PIC18F4550

    Thanks to all for replying. Problem got solved by code optimization.
  6. I

    Memory issue in PIC18F4550

    Hello, I am using PIC18f4550. My program is too long. So eventually my data memory has been reached to 100% usage and my program memory at 13%. So right now, I can't compile my program. So is there any way to use program memory instead of data memory ? Thanks.
  7. I

    [moved] Need suggestions for solar inverter design.

    Hello, I want to design a 3 phase solar inverter. specifications are following. Input Voltage: 400V DC max. Output Voltage: 230 V AC, 3 phase. Functionality: MPPT. I have started work using PIC18F4550 microcontroller. I am generating PWM pulses. But I am getting many problems in generation of...
  8. I

    Output load capacity of relay.

    I was calculating like that only but I wasn't sure. Right now, I am using a bulb of 20W Thanks a lot.
  9. I

    Output load capacity of relay.

    Hello, I am using a relay of 5V. Please check image for more information. I have connected this relay with microcontroller as given in following link. **broken link removed** My circuit work well with AC bulb. Now I want to drive a load of more capacity. I want to calculate that what is the...
  10. I

    I am looking for an alternative to atmega 328

    Re: i am looking for alternative to atmega 328 You can also go for PIC microcontroller. There are many PIC controllers are of 8 - 10 pins.
  11. I

    Scan 100 to 500v at input of PIC microcontroller

    Hi, I am using PIC18f4550 micocontroller. Right now I am using inbuilt ADC to check input voltage i.e. 0 to 5v. But now as per my application I need to scan 100V to 500V DC input voltage at ADC. How can I do ? Please suggest me. Thanks in advance.
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