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Type: Posts; User: varunme

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  1. Replies
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    417

    Closed: Re: Designing IGBT DC Source

    Sorry, its 6 to 12V, power will be 0-500A x 6-12V, so power will be around 3kW to 6kW

    Ok, I will work on it and update
  2. Replies
    3
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    417

    Closed: Designing IGBT DC Source

    I need to design an IGBT based dc powersupply for electrochemical application
    Planned to making high current(500A), low ripple and high frequency

    Can we just rectify and change the voltage by...
  3. Replies
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    5,382

    Closed: Re: powerfull Ultrasonic driver circuit

    MD1712 can be used?

    - - - Updated - - -

    100khz audio amplifier will work? can we make exciation voltage of 1000V with audio amplifier?

    - - - Updated - - -

    lm3524 based amplifier can be...
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    Closed: Re: powerfull Ultrasonic driver circuit

    So by changing TIP41/ TIP42 to high current one it will solve the power requirement

    I have to build a circuit that can work from 20khz to 100khz, so its not possible with this method by changing...
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    5,382

    Closed: Re: powerfull Ultrasonic driver circuit

    can this circuit work?

    137116
  6. Closed: Calculating the efficicency of synchronous buck converter in simulink

    How can we plot a graph on, the efficicency of synchronous buck converter in simulink
  7. Replies
    8
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    5,382

    Closed: Re: powerfull Ultrasonic driver circuit

    It is a high power transducer, of the order of 100W

    excitation voltage:1000 V
    Frequency (KHz) 30
    Resonance Impedance (Ω) 10-25
    Static Capacity (pF)±10% 5000
    Input Power (W) 100
  8. Replies
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    Closed: powerfull Ultrasonic driver circuit

    Hi,
    I have powerfull ultrasonic tranducers for 20kh to 80kh, need to build driver board
    can we use 555 timer to drive it?

    how the high excitation produced to drive it?
    I am attaching two...
  9. Closed: Difficulty in interpreting STM32F407VE datasheet

    Hi,
    I am finding difficulty in identifying STM32F407VE [LQFP100], UART1, UART2 pins from the datasheet, kindly some one help me

    http://www.st.com/resource/en/datasheet/stm32f407ve.pdf

    thank you
  10. Replies
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    1,954

    Closed: Re: Datasheet for P105N3LL mosfet

    Didnt find is it whether a logic mosfet? can we turn on by microcontroller 5V?
  11. Replies
    4
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    1,954

    Closed: Datasheet for P105N3LL mosfet

    if someone have Datasheet for P105N3LL mosfet, kindly help me
    No information found on web
  12. Replies
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    Closed: Re: UART data not coming to second uart port

    Thank you bigdogguru it was right
    and I am having difficulty in setting in registers, so I have made one UART polling and another interrupt based
  13. Replies
    5
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    961

    Closed: Re: UART data not coming to second uart port

    I am using pic32mx795f512H

    First UART is connected to sim900A, it is initializing
    second directly to serial port of PC

    since the second UART. uart2 to pc serial port the interrrupt priorities...
  14. Replies
    5
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    961

    Closed: UART data not coming to second uart port

    I have a program which sends data to uart and lCD, the program sends data to first uart, but no communication with the second

    someone kindly help


    void main() {

    AD1PCFG = 0xFFFD; //...
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    890

    Closed: Re: PIC32 UART interrupt

    yes, mikroC

    - - - Updated - - -

    The UART system is sim900a

    AT commands for the same is


    const char atCommand1[] = "AT\r";
  16. Replies
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    890

    Closed: PIC32 UART interrupt

    For this program to initiate by interrupt



    void Send_SMS(char *s1, char *s2, const char *s3, const char *s4, const char *s5, const char *s6, const char *s7, char *s8, unsigned int *idx, char...
  17. [SOLVED]Closed: Zigbee s2 configuration for sending data to PC

    I am struggling to configure zigbee s2 modules for sending data to PC, have two modules, one to uC and other to PC using usb to ttl
    someone kindly help me
  18. Closed: Re: How can we Change mikroC oscillator frequency for 8MHZ for pic32 compiler?

    It uses PLL, I use 8MHz, so PLL/2 and PLLx20 to 80MHz, thats what i need to know
  19. Closed: How can we Change mikroC oscillator frequency for 8MHZ for pic32 compiler?

    How can we Change mikroC oscillator frequency for 8MHZ for pic32 compiler? uC is pic32mx795f512H
  20. Replies
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    3,006

    Closed: Re: Datsheet for RG2004A 20x4 LCD

    How would check both are same?
  21. Replies
    3
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    3,006

    Closed: Datsheet for RG2004A 20x4 LCD

    Anyone have datasheet or pinout for RG2004A 20x4 LCD, kindly help
  22. Replies
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    964

    Closed: Relay selection for half HP pump

    can we use 250V 10A relay for half HP pump in 220V supply?
  23. Replies
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    832

    Closed: Re: Need Solution for AA Batteries Charger

    Krithik, if you require one or two for your own purpose then, it is available in market at very low cost in your area
  24. Replies
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    1,460

    Closed: TB6600 using pic micro

    can we control stepper by using tb6600 by using the below flow code?
    the tb6600 board i am using have EN ;CLK ;DIR pins
    and M1 M2 M3 and TQ


    for (i=0; i<=10; i++)
    {
    EN =1;
    CLK =1;
    DIR =1
  25. Replies
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    Closed: Re: 13V- 50V to 10V convertion

    What about capacitor divider?
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