Jump to content
Electronics-Lab.com Community

Search the Community

Showing results for tags '12v battery level indicator'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Electronics Forums
    • Projects Q/A
    • Datasheet/Parts requests
    • Electronic Projects Design/Ideas
    • Power Electronics
    • Service Manuals
    • Theory articles
    • Electronics chit chat
    • Microelectronics
    • Electronic Resources
  • Related to Electronics
    • Spice Simulation - PCB design
    • Inventive/New Ideas
    • Mechanical constructions/Hardware
    • Sell/Buy electronics - Job offer/requests
    • Components trade
    • High Voltage Stuff
    • Electronic Gadgets
  • General
    • Announcements
    • Feedback/Comments
    • General
  • Salvage Area

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


Website URL


Yahoo


Skype


Location


Interests

Found 1 result

  1. The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display. This ic is used for Dot and Bar Display. A single pin changes the display from a moving dot to a bar graph. Current drive to the LEDs is regulated and programmable, eliminating the need for resistors. This feature is one that allows operation of the whole system from less than 3V. From datasheet – The linear scaling of the output thresholds makes the device usable, for example, as a voltmeter. In the basic configuration it provides a ten step scale which is expandable to over 100 segments with other LM3914 ICs in series. The simplified LM3914 block diagram is to give the general idea of the circuit’s operation. A high input impedance buffer operates with signals from ground to 12V, and is protected against reverse and overvoltage signals. The signal is then applied to a series of 10 comparators; each of which is biased to a different comparison level by the resistor string. For more detail Click Here .
×
×
  • Create New...