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.
dBm is dB relative to 1 milliwatt. Power can be any value relative to 1 mW, so positive or negative dB. Noise should hopefully be lower than signal, so the ratio 10*log(Pnoise/Psignal) should be negative for a useful device.
One rating manufacturers give in the specs is for the "full scale"...
This is an interesting problem, with lots of answers, but I agree with Treez and Fvm early posts about reverse recovery transient.
As you know, the difference between SiC and Schottky is the zero reverse recovery time of the former - i.e. no current transient. Since it broke when you changed...
possibly Osram LH R974 series, at 1.3V? but it looks like digikey only has 0805
I think Alkaline cells start a little above 1.5V when new. Assume 1.55V (?), then an initial guess for a resistor might be 0.25 V / 0.01A, or 25 ohms.
I expect some trial and error may be involved, though.
As "KlausST" and "Easy Peasy" indicated, this design needs an inductor before your 10000 uF capacitor. Since you want 12 A, this inductor likely will not be small, or lightweight. So at some point you are no better off (wrt size and weight) than if you simply stepped down the voltage using a...
I agree this should work, although you don't have to go to any great lengths to make a charger.
The Li-ion batteries put out about 13.6 V when fully charged, down to about 10.8 V when they are close to discharged. They typically prevent discharging below this voltage to help prolong the life...
There are two reasons I can think of for the attenuators - the first is power. The question is whether the various mixer inputs are rated for 2x the power they are being run at (i.e. +3dB relative to the current configuration). Too much power might blow the diode(s) inside the mixer, so...
I have seen CPU designs developed in a couple of books on learning VHDL or Verilog. One that I could put my hands on is by Sunggu Lee, ISBN 0-534-46602-8.
Another is by Pong P. Chu, who describes the elements of Xilinx's MicroBlaze processor in his "FPGA Prototyping by V___ Examples" books...
I would expect there will be a measurable difference when the batteries are marginal, so that there is less voltage available to turn on the transistor. Figure 1 in the spec sheet indicates that at 2.5V (e.g. old resistive batteries mostly discharged) the current through one transistor would be...
Re: PCB manufacturers working with RO4350
Sunstone
https://www.sunstone.com/news-resources/article/2011/02/15/sunstone-circuits-now-offering-rogers-materials-shipped-within-24-hours-of-purchasing
Re: the film is too small for this pcb
This happened to us because some components got placed off the board (e.g. at -44000 mils). We don't know how this happened, but none of the suggested techniques like "view | Fit Document" would locate them onscreen.
Our solution was to use Shift-F12...
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.
