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Amplifying current in a sine wave

Abhinav Mac
Prodigy 10 points
Other Parts Discussed in Thread: OPA564

Hi,

I am looking for a way to amplify the current in my sinusoidal wave of voltage range 0- 5V and a current range of 5mA to 15mA. I require a sine wave of 370mA to open a EVP proportional valve according to the sine wave. I have satisfied the voltage requirement, but the current is too low to open the valve. Is there any way to amplify the current?

  • 0
    TI__Guru* 93105 points

    Hi Abhinav,

    There are power op amps such as the OPA564 that can provide that level of output current. A conventional voltage amplifier op amp circuit could be set up to follow the 0 to 5 V input and drive the high current-load with the same voltage range.

    You can see the OPA564 datsheet here:

    Let me know if you have an questions.

    Regards, Thomas

    PA - Linear Applicaitons Engineering