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  1. kumar_prashu

    pcb software

    Hello all, I am new to PCB designing. I want to get some PCB designing software for free. I had one ExpressPCB. But not sure about its versatility and use as a professional pcb maker. please tell me which software should i go for. Also, if i use ExpressPCB then, will I be able to design PCB...
  2. kumar_prashu

    datasheet required! (motor+encoder)

    hello everybudy I have got a used motor with encoder , which it looks, have been drawn from CNC type machine. The rating plate (on the motor) only tells about rated voltage. and other things are missing.what soever it had mentioned, i m giving below On the motor: Canon precision japan...
  3. kumar_prashu

    sensor

    Hello I need a sensor to locate the Exact position of the slot used in die casting machines. yes! for robotic application, Of Course.which type of sensor would be suitable for this type of operation, capacitive or any other. The same application requires to place the workpiece at a pre...
  4. kumar_prashu

    sensor

    Hello Can anyone giove me some good site for sensor applications, which shall provide me some free handbook on sensor. I need a sensor to locate the Exact position of the slot used in die casting machines. thanks in advance.
  5. kumar_prashu

    pwm in stepper

    Hello Everybudy can anyone tell me how to stop the stepper motor running at full steps/secs (full speed). I know that it operates on pulses but i have to put heavy load on the motor shaft so because of pulling action of load the motor may slip from the commanded position. My question is Can I...
  6. kumar_prashu

    Ripple Rejection DC power supply

    Hello I m trying to make a variable voltage Rectified power supply using LM338. But i am facing an unusual problem of ripple at the output of LM338. when I set the Output at the particular voltage, the ripple current at the output just doubles the DC value. just as if DC o/p = 12 volts...
  7. kumar_prashu

    atx power supply for robot

    Hello can anyone help me in selecting an appropriate DC power supply for robot. I had heard it is advantageous if using ATX power supply for robots, but i dont know the basic difference between ATX power supply and simple rectified dc power supply. Is it suitable for continuous operation. The...
  8. kumar_prashu

    stepper motor controller ucn5804

    Hello everbudy I am prashant. I am trying to make a stepper motor controller card using UCN5804B chip (allegro make). The problem is that i am not sure about the circuit shown in the datasheet of the Chip by the chip manufacturers. The circuit uses only diodes as an external elements. I want to...
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