Hi!
I have the following schematic , used as an infrared LED driver.
The purpose of the circuit is:
As long as the button is pressed (shown in the schematic) , the LED emits.
The "Vin" signal is a 1,5Vpp sinusoidal waveform with 37 kHz frequency.
I have to choose the values for the components so thah the AC current (IL) of the LED is 34 mA.
I can understand that the schematic is some kind of "voltage to current converter" and that the C capacitor is there for removing any DC offset from my signal but I can't find how to choose the component's values.
The OpAmp's supply voltage is 20V.
Any help would be appreciated.
Thanks a lot!
I have the following schematic , used as an infrared LED driver.
The purpose of the circuit is:
As long as the button is pressed (shown in the schematic) , the LED emits.
The "Vin" signal is a 1,5Vpp sinusoidal waveform with 37 kHz frequency.
I have to choose the values for the components so thah the AC current (IL) of the LED is 34 mA.
I can understand that the schematic is some kind of "voltage to current converter" and that the C capacitor is there for removing any DC offset from my signal but I can't find how to choose the component's values.
The OpAmp's supply voltage is 20V.
Any help would be appreciated.
Thanks a lot!