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7 Threads found on edaboard.com: Magic Resistor
Hello fellow Hobbyists, some days ago some magic smoke came out my SSD, at first glance I thought that was just the glue of a resistor getting hot. I got proven wrong, as I rebooted it didn't recognistse the drive ananymore. An important side note might be that the SATA Data connection still picked up the SSD, it just didn't had power to run I
I am using flash magic for programming P89V51RD2. But when i connect USB to serial cable with circuit board then pins of max232 (pin13,pin14,pin1,pin2) are getting shorted and voltage level on PORT1 of controller goes HIGH (4.8 V). So when i am trying to load the code it gives error "failed to read device signature(unable to transmit/receive)
Hi, U can use poly for making the resistor in magic, to identify the poly as resistor u have to put a pseudo layer. Pseudo layer name is pseudo rpoly. Give two terminal names then extract you will get the value of the resistance between the nodes. If u need i will send you scipt that generate the required resistance value using the POLY.
The input voltage of any linear regulator is higher than the output voltage for one simple reason. The regulator is acting like a large automatically adjusting variable resistor. This is all a linear regulator really does. Lots of people think it some kind of magic inside, but it really just acts like a resistor. This is why linear (...)
Not a magic at all, maybe you were tyred?. It is quite normal that ac analysys gives you a rubbish if you give it to analyze a rubbish. ac analysys does not have any sense if dc operation points are not properly set, because non linear components are linearized aroud dc points, and simulation is valid ONLY at the linear range around them (small sig
There is nothing magic about BJT, if you already know how to analyze/design a MOS cicuit. Always starting from DC operating point, which will determine the current level of the BJT and associated biasing resistor values. Once you have the DC operating point set, you can then play around with AC simulation for BW and noise, and then transient analys
well, this is not quite a bandgap. this circuit makes a ptat current of (kt/q)ln(n)/R. ptat is proportional to absolute temp - it is linearly rising with temp. in order to get a magic voltage, you need to dump this current into a diode plus resistor. diode voltage drops with temp, so scale the resistor to cancel the two slopes to (...)