Recent content by TheAnalogKid

Ok, I just realized that V*I = Watts = T*RPM . . and then take the motor efficiency to make up the discrepancy so the relationship value of 1.345 is between electrical power and mechanical power and that number arises from the units

I know how to measure Km, but I already know Kt from the datasheet and according to some motor calculation guide's I've found online, they say you can know one from the other by using the relationship: Kt (oz.-in) = 1.345 * Km (V/1000 rpm) I checked this on other motor's datasheets that give...

I'm not going to be able to give you all the formulas to justify, so its up to you to do the extra research. With regards to gain, a MOSFET gain can be described by its transconductance, which is a ratio of its drain current Id to small-signal Vgs while in the saturation region of operation...

angular position motors measure their current position with a sensor (rotary encoder, hall sensors, potentiometer, etc.) and then use a feedback system to adjust the voltage in the motor until the position they measure is stable and at the value that they want. The same can be done for a motor...

Thank you very much for the response. I didn't take these factors into consideration, and they seem to be good arguments for using an external diode.

Hello, I am designing a motor controller, and I was curious about the MOSFETs I'm using that have an internal body diode zener for Vds protection that is common in a lot of datasheets. I am switching the coils of the inductor with these MOSFETs, and I would like to know if its unwise to...

I have a friend who was asked what temperature corresponds to an output of 1.5mV from a type T thermocouple. What is the relationship and how do you get the relationship? This is an academic problem, so datasheets aren't really the answer I'm looking for.

ok thanks, this helps. And thinking about it now, a 60 Hz light wave would actually have to propagate slower than a 1Hz light wave, with both traveling at C by my reasoning, and that makes no sense.

well I'm aware of the dual nature of light as a particle/wave, although not too refreshed on it. But what does a frequency and amplitude mean to the light if it is not a particle??

Hi, I have wanted to ask someone this for so long, but I know its stupid. Is there a maximum frequency as a side effect of a maximum speed of light? Thinking of light as a pure wave and at a fixed amplitude, it is going to have to travel the distance dictated by the amplitude and frequency...