Looking for a two leaf low voltage switch

In summary, the conversation discussed the issue of switch bounce in a virtual pinball cabinet and the search for a low voltage replacement part or setup. Several solutions were suggested, including using dedicated ICs to control switch bounce.
  • #1
ViriiGuy
4
0
Hello,

I figure if anyone on the internet would know where to find a good solution to my issue, it would be you guys.

For a tiny bit of background, I am building a Virtual Pinball Cabinet. I want to control two inputs with a single switch.. To be exact, I want to emulate the setup that several pinball machines use, in that a half press of the button controls the first set of flippers and a full press of the button controls the second set of flippers.

On a real pinball machine this is done using this style http://www.pinballlife.com/index.php?p=product&id=1692 and this style dual leaf switch.
I would like to stay with a similar setup if possible, because I want the feel to as authentic as possible. But the problem is with the extremely low voltages involved with a keyboard encoder, these switches seem to cause stutter.

Does anyone here know of a low voltage replacement part or setup?

Thank you,
Randy
 
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  • #2
ViriiGuy, Welcome to Physics Forums!

What you describe as “stutter” is often called "switch bounce", "chatter", or “contact bounce”. Many mechanical switches exhibit this behaviour.

“Contact bounce is a common problem with mechanical switches and relays. Switch and relay contacts are usually made of springy metals that are forced into contact by an actuator. When the contacts strike together, their momentum and elasticity act together to cause bounce.”
http://en.wikipedia.org/wiki/Switch

Solutions:
http://www.embedded.com/electronics-blogs/break-points/4024956/Solving-Switch-Bounce-Problems

http://www.elexp.com/t_bounc.htm

For dedicated ICs to control switch bounce, see:
Number: MAX6816, MAX6817, MAX6818
Manufacturer: Maxim-Dallas
Web Page: http://www.maxim-ic.com/quick_view2.cfm/qv_pk/1896

Cheers,
Bobbywhy
 
  • #3
Cool thanks, I will give that a try.
 

FAQ: Looking for a two leaf low voltage switch

What is a two leaf low voltage switch?

A two leaf low voltage switch is a type of electrical switch that is used to control the flow of electricity in a low voltage circuit. It consists of two metal contacts, or "leaves," that are separated by a small gap. When the switch is closed, the leaves come into contact and allow electricity to flow through the circuit. When the switch is open, the leaves are separated and the circuit is broken, stopping the flow of electricity.

2. How does a two leaf low voltage switch work?

A two leaf low voltage switch works by using the motion of the leaves to make or break the circuit. When the switch is flipped to the "on" position, the leaves come into contact and complete the circuit, allowing electricity to flow. When the switch is flipped to the "off" position, the leaves are separated and the circuit is broken, stopping the flow of electricity.

3. What are the benefits of using a two leaf low voltage switch?

One of the main benefits of using a two leaf low voltage switch is that it is designed for use in low voltage circuits, which are typically safer and less expensive than high voltage circuits. Additionally, these switches are typically smaller and more compact than other types of switches, making them ideal for use in tight spaces.

4. How do I choose the right two leaf low voltage switch for my project?

When choosing a two leaf low voltage switch, it is important to consider the voltage and current rating of the switch to ensure it is compatible with your circuit. You should also consider the size and design of the switch to ensure it will fit and function properly in your project. It is also recommended to choose a switch from a reputable manufacturer to ensure quality and reliability.

5. Are there any safety precautions I should take when using a two leaf low voltage switch?

Yes, it is important to follow all safety precautions when working with electricity, including when using a two leaf low voltage switch. Make sure to turn off the power before installing or working on the switch, and always use caution when handling electrical components. It is also important to choose a switch that is rated for the appropriate voltage and current to avoid overloading and potential hazards.

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