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seems like its not possible to measure current using sense resistor at that location.
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I didn't know that either until I inspected the circuit more carefully.
I think I got where is the problem. When duty is 46%, in rest of 54% the current is flowing through flyback diode. Thats why current meter is showing 1A while resistor is turned off for 54% of pulse.
I have a current sensing resistor of 0.05R at low side of inductive load. The inductive load is being pulsed by N-Mosfet also at low side with 200Hz frequency.
At duty cycle of 46% the voltage across current sense resistor is 25.8mV measured by 2 different digital meters. Since the measurement...
Okay let me clearify more, I want to create a 5V output for logic operations using 12V, I do not want to use uC to create 5v, but I want to use uC to sink the created voltage by 12V. Since my knowledge is limited in electronics, I had doubt I would be feeding 12V to uC by sinking but I also...
The reason I asked because lately what I've been calculating turning out not to be very correct. Since I do not have much electronics knowledge, even little things can be confusing. So I asked here to be sure that I'm not mistaken.
Thank you and sorry if I made you feel bad.
I do not understand why you guys are being rude just because I asked this question. Maybe its nothing for you, but since I didnt know I asked. Also its in elementary section of forum, so I believe it should be okay.
Thank you for all your help.
I have following voltage divider in which I want to sink its voltage down to nearly 0 directly from arduino uno 5V GPIO. But I have few questions.
If I set pin mode to OUTPUT and pin to LOW, it will sink all the divided voltage(4.857v) and max current will be 1.2mA. Right ? but will that be...
What I'm trying is to control the output of a comparator, usually they are open drain, so it needs a pull up resistor for output. Now what I want is, when comparator is OFF its output will be pulled high, so capacitor should charge fast, but when comparator is ON, then it should slowly discharge...
I want to create a circuit where a capacitor charges quickly and discharges slowly. So I thought to place 2 resistors, charging with lower resitance and discharging with higher resistance. It should have work. But when I tested in ltspice, its result was different.
Why its ignoring 150K resistor?
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