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Type: Posts; User: Prakash12345

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  1. Closed: Re: Wire transmission(15 mtrs) to send data & control signals for cascaded shift regi

    Hi,

    There is nothing to hide. My neighbor gave a project and the project was 'drip irrigation' that would give water for numerous plants separately according to time. Available control board was...
  2. Closed: Re: Wire transmission(15 mtrs) to send data & control signals for cascaded shift regi

    I'm in the stage of starting of my project so I didn't have circuit only prior idea.


    Thanks for understanding and I just want to make my project as simple.

    On receiver side I using 15V so I...
  3. Closed: Re: Wire transmission(15 mtrs) to send data & control signals for cascaded shift regi

    I thought that sending data via MOSFET with little high voltage means there is no voltage lag or signal loss at sender & receiver side and also 3 phase- 5 HP motor will be placed in that room so only...
  4. Closed: Wire transmission(15 mtrs) to send data & control signals for cascaded shift register

    I'm trying to send 4 kbps data from micro-controller(sender) to cascaded shift register IC(receiver).

    In this scenario distance between micro-controller and shift register is 15 meters. On...
  5. [SOLVED]Closed: Re: Relation or difference between Input clamp current and Sink current

    Thank you for your clear explanation.
  6. [SOLVED]Closed: Relation or difference between Input clamp current and Sink current

    Hi,
    Please explain relation or difference between input clamp current and sink current and how it will affect micro-controller.
  7. [SOLVED]Closed: Re: Could make any problem if microcontroller and more relay ground connected same

    Hi,

    Thanks for your suggestion. I'm using 128 solenoids from dis-assembled relay.
  8. [SOLVED]Closed: Could make any problem if microcontroller and more relay ground connected same

    Hi,
    I'm planning to control more relay using decoding technique by the use of micro-controller. Talking to relay we may pick normal 12V, 40mA relay.
    I'd no problem upto 5 relay. If increased more...
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    [SOLVED]Closed: Re: Buffer output to microcontroller input

    Thank you all for your valuable suggestion. And at last my doubt is cleared.
  10. Replies
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    [SOLVED]Closed: Re: Buffer output to microcontroller input

    Hi,

    Fine, why we use 10k serially, is only for limiting current?
    Then what about buffer output to micro-controller input?
  11. Replies
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    [SOLVED]Closed: Re: Buffer output to microcontroller input

    Hi,

    NPN type
    DC 3-wire (10-30V DC)

    Mounting Distance -Shielded (2mm)
    Sensing Distance -Shielded (0-1.6mm)
    Power Supply -DC 10-30V
    Frequency -DC: Shielded ≤ 600Hz...
  12. Replies
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    2,199

    [SOLVED]Closed: Re: Buffer output to microcontroller input

    Hi,
    Ha ha ha, that's correct with your last Example @KlausST.

    I just want to protect I/O pins from high voltage and current from external peripherals.

    According to you my given circuit is...
  13. Replies
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    2,199

    [SOLVED]Closed: Re: Buffer output to microcontroller input

    Hi,

    I'm using Inductive Sensor-M12.


    Please explain above quote briefly.

    In datasheet they mentioned "Maximum output current sunk by PORTA<5:0> and any PORTF, PORTG and PORTH I/O pins- 2mA"...
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    2,199

    [SOLVED]Closed: Buffer output to microcontroller input

    Hi,
    I want to interface sensors to pic micro-controller(PIC18F87K22). For protection buffer(74HC541) is used in between them. Sink current of PORTH pins are 2mA. Other ports are dedicated to various...
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    Closed: Re: Detecting solenoid ON and OFF state

    Hi,
    Actually input_1 is a HIGH or LOW signal from micro-controller using decoding technique. At some situation solenoid may not work like you(@KlausST) said. Using XOR gate I comparing signal from...
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    633

    Closed: Detecting solenoid ON and OFF state

    Hi,
    I want to detect solenoid ON and OFF state.
    If solenoid ON, with respect to HIGH signal no problem.
    If solenoid not working means with respect to HIGH signal, solenoid remains OFF state. In...
  17. [SOLVED]Closed: Re: Is there any limitation in fan-in of CMOS buffer

    Thanks a lot and I found solution at last post. I'm new to online forum and I have to improve question asking skills.
  18. [SOLVED]Closed: Re: Is there any limitation in fan-in of CMOS buffer

    Here is the circuit. Input is 74HC541(Buffer) and output is 74HC574(D-F/F). What modification I have to do to fill my requirements? I want to interface minimum 64 D-F/F to my circuits130035
  19. [SOLVED]Closed: Re: Is there any limitation in fan-in of CMOS buffer

    OK, then how many CMOS IC outputs can given to input pins in a buffer?
  20. [SOLVED]Closed: Is there any limitation in fan-in of CMOS buffer

    How many inputs can be connected to input pin of 74HC541(Buffer). Whether it related to current or voltage or capacitance or timing. Please give me fan-in calculation of CMOS-CMOS interface.
  21. [SOLVED]Closed: How to increase fanout of CMOS buffer

    Hi,
    I'm new to online forum. I want to interface 74HC541(Buffer) to 74HC574(D-f/f). The thing is 100's of D-f/f parallel interface as shown in figure(Fig.1).
    Input and load capacitance...
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