12V-latch

  
This circuit controls a solenoid by the operation of a single push-button switch. The circuit will supply loads of over 1 A and can be operated up to a maximum speed of once every 0.6 second. When power is first applied to the circuit, the solenoid will always start in its off position.
12V-latch - schematic

Other features of the circuit are its automatic turn-off, if the load is shorted, and its virtually zero-power consumption when off.



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News


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     21 March 2017
  • Electronics Weekly (blog)
    Electronics Weekly (blog) I used a Magnavox AC adapter, but any similar with a DC output from 7.5V to 12V should work. These are readily available online and cost from under $1.00 to about $3.00. Be sure to use two ight LEDs that are ... The
     14 March 2017
  • Electronic Design
    Electronic Design Don't rely solely on electronic of to protect relay contacts. Electronic takes a finite time to react, and decoupling capacitors are often on the output of a . There's nothing better than
     29 September 2016
  • Hackaday
    Hackaday [GreattScott!] combines a few of these into a relatively useful variable with . Admittedly, this is more of academic exercise if your only metric for success is monetary savings. Comparable can be purchased
     12 September 2016
  • Electronic Design
    for Light LoadsWhile these circuits are easy to configure, you should take utmost care to create a bench prototype and add an appropriate filtering and protection circuit to avoid potentially fatal injuries. The user must ensure that the in
     12 September 2016
  • Hackaday
    [GreattScott!] combines a few of these into a relatively useful variable with . Admittedly, this is more of academic exercise if your only metric for success is monetary savings. Comparable can be purchased
     12 September 2016
  • Control Design
    in industrial machineryThis capability may also determine the specified. Some have little current inrush (current overload) capability and other powers supplies have a very high inrush capability, up to 400%. If high inrush
     28 June 2016

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