Power Supply Tube Preamplifier. | Electronics Forum (Circuits, …
4 天之前 · The second diagram is of a tube preamplifier from Audio and Technology from a long time ago, I personally think the current limitation of Audio and Technology looks better. When I simulate in Tina Software, the current limitations of both seem to work, but as I wrote before, the power supply board of the first diagram broke after a short circuit.
simple resistor pullup has a weight limitation of about 200m. Sophisticated 1-Wire master designs have overcome this limitation by using active pullups, that provide higher currents under logic control and have extended the maximum supportable weight to over 500m. See application note 244, "Advanced 1-Wire Network Driver." Parasite Powering Issues
How to Turn Off a Triac? | Electronics Forum (Circuits, Projects and ...
2008年3月9日 · Hi dknguyen thanks for explaining that quadrants i got a quite understand of that I'll study that. when giving ( + ) pulse only in the positive side of the wave form, the output bulb fading looks good.I mean i can fade a bulb from fully dim to full bright.Its working.
"undropping" parts in eagle... - Electronics Forum (Circuits, Projects ...
2007年1月11日 · Yes, the traces pretty much follow the grid, though if you use parts with different lead spacing (such as SMD parts, with lead spacings measured in mm, used on a grid that is a fraction of inches) it will let a section of the track be off the grid, usually it snaps back to the grid as soon as you put a bend in the trace, etc.
how to reduce loading effect | Electronics Forum (Circuits, Projects ...
2003年4月22日 · fiugre The figure of the amplifier is shown in the following .the main amplifier is a differential input and a differential output fold cascode.using two resistance to vary the gain.however, the input resistance should less than 1k due to the limitation of the input noise.In my design another resistance should larger than 1000k due to the loading effect.Any buffer …
Microcontroller vs discrete component design
2015年9月2日 · > Battery charge current limitation to prevent overloading supply. I have used 13 resistors, 1 preset pot, 5 capacitors, 3 diodes, 1 comparator, 1 voltage reference IC & 2 transistors. All voltages are < 15 Vdc.
Difference/similarities between LF347 and LM324
2010年5月25日 · With a supply of only plus and minus 5v for example you may find that your input signal has to be limited to plus and minus 1v because of the input common mode range limitation. Last edited: May 25, 2010
Pic 32 and Mplab X | Electronics Forum (Circuits, Projects and ...
2017年6月2日 · This is a limitation of GNU Make tool that we use as part of our build process. Removing spaces from all file and folder names included in this project will eliminate this potential issue. Last edited: Jun 3, 2017
RFID amplifier question | Electronics Forum (Circuits, Projects and ...
2011年10月21日 · If it is the simplest 125 kHz RFID, where the receive and transmit are on the same frequency, the limitation is generally on whether you can see the return signal from the RFID tag in the huge signal that you need to drive the coil. Systems where the return signal is at a different frequency can get a better range.
difference of a chopper tranformer in a ordinary tranformers
2005年11月11日 · The frequency limitation of a transformer is determined by the core material. I don't think there is much difference between a chopper transformer and a sinusoidal transformer of the same frequency. Click to expand...