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Thanks for the explinations guys but electronics is still very new to me.
To be honest , I don't quite understand some of the terminology used.
Can you please simplify things a little more.
Thanks,
Jay.
Basically its a voltage divider.
25kv to28 kv dc input - 30kv diode , 30kv 470pf cap , string of resistors and varistor - dropping voltage to 25 to 28v dc output.
Im unsure if the diode and capacitor will take more than 30kv and what is hooked up to the 25 to 28v output is rated to 30v dc...
Hi all ,
Looking for some advice on how to limit dc high voltage.
I have some small ic's which are good for 30kv dc.
How would I go about adding a limiting device to protect the circuitry from over voltage ?
Most of the time the ic will be working within 25kv to 28kv but , there may be...
Thanks Artic,
I did a little more investigating and found a couple of things.
There's a LM317T CC12CVW mosfet on the PCB that heats up very quickly. It does have a small heat sink but after 10 seconds use the heat sink becomes too hot to touch.
From the 12v input supply it looks like it feeds...
Hi All,
Ive spent the last couple of days looking into Voltage multipliers and I've come up short.
I'm looking for a simple way to turn 5 to 12V dc into 20 to 25kv.
I've looked at Cockcroft-Walton Voltage Multipliers but cant seem to figure how to calculate the required capacitors ( KV and...
Thanks guys 8-)
I just want to measure the resistance without the spark.
In a nutshell ,
switch position 1 (position 2 isolated)- ignites the spark plug
Switch pisition 2 -(position 1 isolated) measure resistance.
Most spark plugs use an internal resistor to eliminate RFI.
As the plug wears...
Hi all,
I'm building a small high voltage project and I'm a little stuck.
Basically I'm building a spark plug tester .
There are 2 contact plates that the spark plug touches and in testing operation the contact plates receive 25kv to ignite the spark plug.
The whole system is run from a 12v dc...
3rd attempt
After a few days study I came up with this
Full size image https://i53.photobucket.com/albums/g66/kamipalms/Elect/sch_zpsd45f1897.jpg~original
Shown in normal operation , "1A&1B" would bypass "M - signal reversing module" and "b - voltage regulator "
When the tilt switch "a"...
Ok, ill try again .
I'm not sure how to set out a truth table so I'll try and explain again.
Application is for radio control vehicle use which is gasoline powered.
The whole system runs on 6v to 8v dc
What I would like to do is make a small add on device to shut the vehicle down in a roll over...
Hi all,
Jay is my name and Western Australia is where I am.
I have some basic understanding of electronics , enough to keep me out of trouble anyway.
I've decided to try and make a simple device but very unsure of how to go about it.
In a nut shell, I wish to use a dual axis tilt switch to...
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