I want to add a balanced DI out (direct injection out, balanced out) to my bass guitar combo. It has a unbalanced line out already. I intent to use a BurrBrown / Texas Instruments DRV134 as a line driver to get balanced out.
As most PA mixer consoles I have worked with have global switchable 48V phantom power on XLR connector inputs, do I need to protect line driver from 48V phantom power?
Measurements performed using a TDR tester show that the time delay resulting from a power-line fault is 72.5 mS. The line-under- test has a velocity-factor of 0.67 and the echo pulse is non-inverted. Determine the distance to the power-line fault and discuss the significance of the measurement results.
Here is part from RF power amplifier for wireless by Steve Cripps.
It is about conjugate and load line match for RF power amplifier. I don't know why the load line as Rload = Rgen is above the line Rload = Vmax/Imax.
I'm working on arduino project and I need to make small and efficient power supply for the arduino microcontroller.
The only power source I have is 24VAC line, I would like to use that line to convert the AC to DC and then step down to 12V via regulator.
I'm adding the electric schematic that I made for the power supply.
I have few question to ask you because I'm still
This is on a VAIO laptop VGN-N250E. On AC power boot up is OK. And then you can switch back and forth between AC power and battery power.
But when you try to boot the system on battery power (no AC) it freezes at the line
ACPI: Added _OSI(Processor Aggregator Device)
I checked a number of references online regarding this error, it seems to be a CPU related issue and buggy on some systems.