Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Is this pumping the result of large transient current flow through power supply resistance? Isn't that same for full or half bridge?
https://www.analog.com/library/analogDialogue/archives/40-06/class_d.html
The power supply voltage buses of half-bridge circuits can be “pumped” beyond their...
I want to build a slope change/increase detector to detect increase of voltage slope, and generate a notification signal when the increase happens.
Any ideas of reference I should look at?
Thanks!
Hi all, I run into an error in hspice saying that my reference is not found. But i included the model file and the simulation log also shows the model file is included.
Also, the model didn't set lmax/min or wmax/min...and W/L of 100u/.35u isn't really an outrageous number...
Please help...
Yes. The differential signal comes from a sensor and needs to be amplified. The common mode voltage coming out of the sensor is very low.
In single supply amplifier this would be a problem. In dual supply the common mode input range covers 0 V common mode.
So my question is how to give the...
This is one power consumption breakdown years ago. It has PA current ~200mA which is close to the number I calculated as you suggested.
I checked iphone spec, they listed talk time 7 hours, wifi 10 hours and 3G 6 hours.
So I assume wifi or 3G use power amplifier and are driven directly by...
Where does this come from ? How do I get this in real design? suppose I have a small sine voltage, how do I add common mode voltage to that so my amplifier can actually operate.
Can I use a voltage divider to get a dc voltage down to like 0.6V and connect to both input of op amp as common mode...
The only commercial DC/DC converter with startup at mV I can find is LTC3108 by linear technology (attached). @Page 8, looks like they used second coil in transformer and a capacitor to form an oscillator to startup.
Their design has low conversion efficiency (<50%). Is that because of low...
Em...I know in-amp needs power to operate.
This dc-dc conversion is just another different question...haha
---------- Post added at 22:10 ---------- Previous post was at 22:04 ----------
Yes, precision low drift low noise OpA can amplify dc voltage. I understand that.
But I'm talking...
commercial dc-dc converters normally have input range ~1 to 2V. Is it possible to convert a small voltage into a ~3V voltage in applications like wireless sensor?
Can instrumentation amplifier amplify a very low DC voltage?
For example, if input is 10mV, instrumentation amplifier gain is 100, is the output 1V DC voltage?
What are typical topologies of dc voltage (~mV) measuring circuit? I'm clueless on this subject and can't find anything related on the forum.
Any help or recommendations of references are appreciated!
I'd like to test output swing, so how do I plot differential gain vs output differential voltage? I use balun to get output differential voltage.
Thanks!
Hi, I'm simulating a ota with capacitance feedback and run into convergence problem in transient analysis. DC analysis is fine. The following are simulation reports, any suggestion?
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
