i m working on some high Capacitor Discharge voltage surges.
my voltage is 835V and i have to discharge it to produce high energy spark. have done with generating, controlling and charging the capacitor
i just want to close the circuit base on some rules. for that conditions and rules, i will use pic micro-controller.
the problem is that i want to turn the HV on or off base on microcontroller i/o pin. can anyone suggest me which component should i use
a resistor. a company require me 30J of energy to be discharged in a resistor. i have demonstrated the HV circuit and they are fine with it. now they wanted the controlled discharging. there are alot of conditions. the best options is using a pic-microcontroller 16f series.
the only problem is how i should turn on or off the main voltage?
please also tell me component number so that i could study the datasheet and implement it instantly
We can't tell you a component number without more information. What resistance? Thus, what current? With that amount of energy stored, you could do a lot of damage!
If you are messing about with high voltage, high energy discharge circuits, you need to do some research and understand fully how to handle the issue.
I guess that an IGBT (module) might be a good choice, but you will have to research parts that are available to you and find one that meets the requirements.
you might use fuse (used to provide a soft start). this fuse must be shorted via software. one thing should be keep in mind that no reverse current should flow as it will damage the controller.