Variable Voltage Regulator


Rating: 0.00 / 5 
Relay Circuits / Automation Circuits
The op amp is wired as a 2 noninverting dc amplifier with a gain that is determined by the R3/R2 ratio. The inp
Variable Voltage Regulator - schematic

ut voltage to the op amp is variable between 0 and 15 V via R5. The output voltage is therefore variable over the approximate range from 0.5 to 30 V. The available output current has been boosted by adding transistor Ql to the output.

Recommended videos

  • LM317 Adjustable Voltage Regulator Tutorial
    Duration: 4:08.
  • Voltage regulator tutorial
  • How To Make A Simple Relay Circuit
    Duration: 7:40.


  • Rail Engineer
    Rail Engineer To deliver the additional capacity required for tomorrow's railway, new ways of controlling train movements using the best available are needed, from signalling control systems to signal equipment, train detection and interlock
     4 July 2016
  • Hackaday
    Hackaday If you just want to prevent your garden from slowly turning into a desert, have a look at the available off-the-shelf home solutions, pick one, lean back and let moisture monitoring and automated irrigation take over. If you want to
     16 April 2016
  • Hackaday
    Hackaday [Conor] wired up his 3D-printed coffin doorbell to an array of RGB LEDs, a screaming speaker, and a spinning skull on a cordless screw driver to make a “quick” Halloween scare. Along the way, he included half of the Adafr
     14 November 2015
  • Machine Design
    Machine Design ​VersaMove conveyors are modular and pre-engineered so that users can easily reconfigure the system when changing manufacturing needs. They are featured in three sizes. The Standard version is for lighter and smaller pall
     16 July 2015
  • Progressive Rail Roading
    The railroad's communications service provider is eliminating a frame system for backbone and no longer will maintain that leased-line service, so the short line needs to switch over to a Verizon cell network, says Buckingham
     13 September 2013
  • Lifehacker Australia
    Lifehacker Australia To accomplish this feat, Pisces built a circuit, attached a couple of IR distance sensors, a , and then ran everything through some code. It's not the easiest setup in the world, but the Instructable is incredibly detaile
     20 September 2012
  • IEEE Spectrum
    It turns out that the best way to design a digital block is to take a page from the first half of the 20th century, when large discrete relays were still used to build computers. Instead of grouping the nanorelays into discrete simple
     30 March 2012
  • Railway Technology
    The Prover iLock Process 25 September 2015 Prover iLock is a tool suite that automates software development of computerised interlocking systems. New CENELEC SIL-4 certifiable interlocking systems can be produced in a few days, saving signif
     9 April 2011