subject
Engineering, 18.09.2019 03:00 ImmortalEnigmaYT

Voltage controlled current source. for a photoplethysmogram amplifier (which you will learn about later in the class), you will need to design a high quality, precision current source to drive the leds to output light into the body. specifically, you will need to output the following current into the led: i(t) = 5ma + 2ma * cos(2*pi*1000*t). your teammate on the project has created a very precise voltage output using an oscillator circuit with the following waveform: v(t) = 1 v * cos(2*pi*1000*t). design a circuit that will provide the desired current for the led based on the output of this oscillator. what is the output resistance of your circuit (assuming ideal op amp conditions)?

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 08:10
Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed
Answers: 1
question
Engineering, 04.07.2019 18:10
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
Answers: 3
question
Engineering, 04.07.2019 18:10
Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?
Answers: 3
question
Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
You know the right answer?
Voltage controlled current source. for a photoplethysmogram amplifier (which you will learn about la...
Questions
question
Advanced Placement (AP), 25.11.2019 14:31
question
Biology, 25.11.2019 14:31
question
Mathematics, 25.11.2019 14:31
question
Mathematics, 25.11.2019 14:31
Questions on the website: 13722360