element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • About Us
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Community Hub
Community Hub
Member's Forum Bistable/latching solenoid valve control circuit. Please help!
  • Blog
  • Forum
  • Documents
  • Quiz
  • Events
  • Leaderboard
  • Polls
  • Files
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Join Community Hub to participate - click to join for free!
Actions
  • Share
  • More
  • Cancel
Forum Thread Details
  • State Suggested Answer
  • Replies 21 replies
  • Answers 17 answers
  • Subscribers 536 subscribers
  • Views 6535 views
  • Users 0 members are here
  • change polarity
  • solenoid valve
Related

Bistable/latching solenoid valve control circuit. Please help!

sim.parkin
sim.parkin over 7 years ago

Hi there.

 

This is my first time posting and it's about my first electronics project since school image. So no need to say that i apologise if what I am asking is very simple but still I hope some one can help me.

 

So here's the situ... I want to be able to remotely switch a hose pipe on, but the thing is, the system is fixed into my vehicle so the whole thing has to be portable and run off batteries. I have a remote switch that at the press of a button (on the remote) can momentarily (or it can be set to self lock also) connect the battery to the solenoid valve and switch it on but the valve needs the polarity to be reversed and pulsed to switch it off again. For love nor money can I figure out a way of doing this? My head is in a whirl from all the h-bridge... dpdt relays... flipflops... etc.... every time I research something it seems I need something else to make it work. (if that makes sense) I am lost.

 

In short what I want to do is: Press the button on the remote control once and it turn the water flow on, and press it again and the water turn off. Basically its a momentary push button input that alternates between a +6v output and a -6v output. If that is possible.

 

I want to use this latching type relay because you can get low power ones of this type, but they also save battery power by only requiring a pulse of electricity to change state, rather than energising a coil for longer periods of time. Oh and I also want to avoid using microcontrollers if possible because I can't code.

 

Really hope someone out there can help. I also hope I remembered everything, if I missed something just let me know.

 

Thanks for reading.

 

 

Simon.

 

p.s. I found one other post like this with a guy with my exact problem but he gave up and used a non-latching type. image

  • Sign in to reply
  • Cancel

Top Replies

  • jw0752
    jw0752 over 7 years ago in reply to sim.parkin +4 suggested
    Hi Simon, The additional information was helpful and from this information in the data sheet: I have a little more confidence that my circuit can be made to work. Keep in mind you may have to experiment…
  • sim.parkin
    sim.parkin over 7 years ago +3 suggested
    Hi there Guys. Wowsers!! That was both quick and excellent!! Thanks so much for your help with this! Sorry for not being able to reply until now... life . I knew it was possible but couldn't get there…
  • jw0752
    jw0752 over 7 years ago +2 suggested
    Hi Simon, I may have a possible solution for you. This is a bistable or Flip flop that I was playing with the other day. This one is triggered by sound but it could just as easily be triggered with a momentary…
Parents
  • sim.parkin
    0 sim.parkin over 7 years ago

    Hi there Guys.

     

    Wowsers!! That was both quick and excellent!! image Thanks so much for your help with this! Sorry for not being able to reply until now... life image. I knew it was possible but couldn't get there like you guys can, just don't have the experience i guess. image image (always learning though)

     

    I have found a data sheet for the valve (or a similar one as I haven't bought it yet, still shopping around) http://www.solenoid-valve.world/image/data/PDF/115bb.pdf

     

    Thanks so much for the video John and your advise!! It looks to me like that will work great from what i understand so please send me along a schematic if its not too much trouble. I would really enjoy diving into that. I really can't thank you enough even with what you have shown me so far though. You're a good egg as they say here in the UK. I would go as far as to say a double yolker! image

     

    I really like the way you thought about it Douglas as the 3 states required. I hadn't thought of it that way before. I did manage to glimpse a scenario where I could use a two button remote in my research but i would like operation to be one button if at all possible (but not at the cost of battery life or anything else that may make the thing not fit for purpose). Thanks very much for your thoughts and ideas.

     

    Mark I'm looking forward to hearing more about what you think now that you have the data sheet for the valve and other details. image

     

    Some other facts I failed to tell you before hand and might be helpful (or problematic for me and i don't even know image): I am planning to use 2x 3.7v 3000mAh 18650's connected in series to provide enough voltage (Will I need to use a voltage divider do you think?), the remote switch is like this one... https://www.ebay.co.uk/itm/4V-5V-6V-7-4V-9V-12V-Relay-DC-ON-OFF-Wireless-Remote-Control-Switch-Transmitter/172957190814?… I am planning to use this board to charge the batteries... https://www.ebay.co.uk/itm/1S-2S-2A-3-7V-7-4V-Lithium-Li-ion-18650-Battery-Charging-Board-Charger-Module/263267349824?ss… I think that is all of it.

     

    I can't thank you enough for your most helpful direction guys.

     

    Until soon.

     

     

    Simon.

    • Cancel
    • Vote Up +3 Vote Down
    • Sign in to reply
    • Verify Answer
    • Reject Answer
    • Cancel
  • mcb1
    0 mcb1 over 7 years ago in reply to sim.parkin

    sim.parkin

    As I suspected this uses the water to provide the latching effect.

    image

    jw0752 cct will provide the required pulse but you need to reverse the voltage onto the solenoid.

     

    IMO the best idea is to use an HBridge.

    The L298N series are often used to control motors, but the solenoid coil is basically the same thing.

    Arduino DC Motor Control Tutorial - L298N | PWM | H-Bridge - HowToMechatronics

     

     

    Motor2.png

     

     

    For this application, the solenoid would be connected across J2 and you would tie ENA high, and then make IN1 High and IN2 low (or hold it low with a resistor), and it will operate one way, Reversing the IN1,2 will make it go the other way.

    Most remote controls provide a pulse out, and you simply connect one remote output to IN1 and the other to IN2. (They can be either High or Low, it's when they are different the motor/solenoid is powered.)

     

     

    The L298N boards are available for a few dollars on the Asian websites.

     

     

    The other method involves a DPDT relay to reverse the connection to the solenoid, and a pulse of the power.

     

    Mark

    • Cancel
    • Vote Up +2 Vote Down
    • Sign in to reply
    • Verify Answer
    • Reject Answer
    • Cancel
  • jw0752
    0 jw0752 over 7 years ago in reply to mcb1

    Hi Mark,

     

    The circuit that I made does reverse the polarity with each trigger. It wasn't clear in your post if you caught this.

     

    I suspect that the solenoid has a plunger that is a magnet and hence the need to reverse the polarity to throw it in to the opposite state.

     

    John

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Reject Answer
    • Cancel
Reply
  • jw0752
    0 jw0752 over 7 years ago in reply to mcb1

    Hi Mark,

     

    The circuit that I made does reverse the polarity with each trigger. It wasn't clear in your post if you caught this.

     

    I suspect that the solenoid has a plunger that is a magnet and hence the need to reverse the polarity to throw it in to the opposite state.

     

    John

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Reject Answer
    • Cancel
Children
No Data
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2025 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube