- #1
Jdo300
- 554
- 5
Hello All,
I have this High voltage IC I purchased from Gamma high voltage here:
http://www.gammahighvoltage.com/html/series_sm.htm
The one I bought, the SM-10, takes a variable input from 0 to 12VDC and generates an output from 0 to 1000VDC.
I want to find the simplest way to digitally control the input voltage so that I can throttle this IC using a microcontroller. The simplest thing I can think of is a DAC, but I don't know if there are any out there that are capable of driving the chip. The datasheet says that the maximum input current is 85 mA but for my application, I measured the input current to be only about 30 mA. Does anyone know if there is a DAC out there that can supply this much output current at 12V?
If not, my other thought was to use a regular DAC with an Op-amp to scale the output voltage and current, but I just thought I would run the question past you all before going that route.
Thanks,
Jason O
I have this High voltage IC I purchased from Gamma high voltage here:
http://www.gammahighvoltage.com/html/series_sm.htm
The one I bought, the SM-10, takes a variable input from 0 to 12VDC and generates an output from 0 to 1000VDC.
I want to find the simplest way to digitally control the input voltage so that I can throttle this IC using a microcontroller. The simplest thing I can think of is a DAC, but I don't know if there are any out there that are capable of driving the chip. The datasheet says that the maximum input current is 85 mA but for my application, I measured the input current to be only about 30 mA. Does anyone know if there is a DAC out there that can supply this much output current at 12V?
If not, my other thought was to use a regular DAC with an Op-amp to scale the output voltage and current, but I just thought I would run the question past you all before going that route.
Thanks,
Jason O