100V switch

[stari]

Hi,
i have 100V output from converter and i wish to switch tis line with cca. 3V from microcontroller. I have driver, yes, but with poor results. Can anybody sugest how to make such a switch. !00V sould be switced on and off with frequency from 10 to 100 Hz.

 

[sundy]

While searching for a TIP transistor I came across this https://itp.nyu.edu/physcomp/labs/m...o-control-high-current-loads-with-an-arduino/
I'm sure they know more that I do!

 

[tedstruk]

you need down converters with relays between them. Frankly they say its alot of money and work to go to, when a seperate converter is available for lower volts. easier to install a second converter.

 

[AnalogKid]

Your question and schematic are missing critical information.
Where on the schematic is the 100 V input?
Where on the schematic is the 100 V output?
Which signal on the schematic is the one that switches the 100 V on and off?
What does "cca. 3v" mean?

ak

 

[stari]

you need down converters with relays between them. Frankly they say its alot of money and work to go to, when a seperate converter is available for lower volts. easier to install a second converter.

Hi
100v is generated with Q1 and output is on D1*C1.
PWM controls the output voltage.
CTRL signal switches 100V on/off.
3V is Vcc.
So simple.

 

[stari]

While searching for a TIP transistor I came across this https://itp.nyu.edu/physcomp/labs/m...o-control-high-current-loads-with-an-arduino/
I'm sure they know more that I do!

Thks. I will look there.

 

[AnalogKid]

What are the "poor results"? In what way does the so simple circuit not perform adequately or correctly?

ak