What instrument would I need to get a hysteresis loop (Flux Density vs Magnetizing Force) for an inductor? Is it something that can be easily obtained given the proper equipment?
Thanks!
-Shad
Thanks for the input NoTime and berkeman!
I will need to study the curves of the diode in question to see what could possibly be occurring. Is it possible that being in a high-temperature enviornment over the span of years will causs a melt in the silicone that will causs a low-impedance...
Does anyone have any information on diode failure? I'm interested in knowing how diodes can fail and what happens when they do fail.
Specifically, what conditions of a diode will cause it to fail to be a closed circuit either direction criteria (like, become as useful as a wire)?
I can do PWM pretty easily as the input power is tied to mechanical relays that I control with 24V DC signals. However, PWM'ing the motor will likely create more heat and power usage.
What kind of motor would I use to accuratly control the speed? I have a stepper motor available, but I'm not...
We have one of these Dayton single phase AC motors:
http://www.grainger.com/Grainger/wwg/itemDetailsRender.shtml?xi=xi&ItemId=1611576952
And I am wanting to control the speed of the motor. I didn't take very many power classes but from what I remember the motor speed is dependent on the input...
Thanks for the input guys. I think I failed to mention that these are DC voltages. Not only that, I would need a pretty large wall-wart to give me enough current. The solenoids draw about 500mA a piece (1.5mA if it is a 6V solenoid). I'm also planning to have around 12-16 connections, so it...
Just tap my power supply at various numbers of turns? Could you please explain more? Thanks!
I'm not sure how many there will be. In the end, does it really matter? From the opto-isolated input from my controller each relay circuit is basically separate minus the common ground.
Danger:
I'm still nailing down the design plans. By port I really meant to say connection terminal for the solenoid. I want each solenoid to have a selectable voltage level. I will have a 24V power supply, a 12V DC-DC converter, and a 5V DC-DC converter. I am not sure if I can use a common...
I am making a solenoid driver that are powering remote operated valves through a solid state relay circuit. I would like each port to have a selectable voltage level 24, 12, or 5.5V with a 3 state switch. I cannot find a 3 state switch that does the trick, however. They all are in a SPDT...
What is the symbol for a solid state relay? I've been using mechanical relay representations in my documentation and just writting next to it "solid state."
I don't like doing this, because it implies that the relay is an inductive load, which it isn't...
My thought is that it should...
Thanks for the offer berkeman!
I actually have an electronics goto guy available, I have just been hitting him with a lot of questions lately and wanted to expand my question and answer base to a forum like I have done in the past with programming and digital design. Also, everyone can...
DC-DC converters
I just got some 5V regulators in today that will take 24V, so I will just step it down that way. The 3.3V only will only regulate with a max input of 6V...after that you start getting screwy outputs.
My plan is to find 1 power supply that will adequately power the whole...
abdo375: Is this for School or for work? If it is for work, I recommend investing the money and time to learn MathCAD. You will get a lot more out of it then what you will get out of any calculator, IMHO.
If it is for School, then I'd go with the TI-89 as it is easy to use. The pretty print...
Wow! An Electrical Engineering Forum! :!)
Please help!
I'm a newbie in the field, just got my degree last May (2005, BSEE). I focussed on computer engineering and can program the crap out of a micro-controller. Now I'm working on some automated test systems and have to work on a lot of...