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71%
+3 −0
Meta Code formatting appears to be broken

Code highlighting, like Mathjax, incurs a small penalty on page rendering, so we don't turn it on by default. The question hadn't come up before on EE, so it was off. I've just turned it on.

posted 3y ago by Monica Cellio‭

Answer
71%
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Q&A Oscilloscope potentially ESD striked

The usual culprits would rather be the ground clip itself or accidentally shorting something with it, more so than ESD. And if something has actually broken on the scope, I'd suspect the probe to b...

posted 3y ago by Lundin‭  ·  edited 2y ago by Lundin‭

Answer
71%
+3 −0
Meta React feature guidelines?

Summary "Outdated" should be used for "this won't work anymore today", not "we would do this differently today". Detail "Outdated" should be reserved for when an answer is wrong or misleading be...

posted 3y ago by Olin Lathrop‭  ·  edited 3y ago by Olin Lathrop‭

Answer
71%
+3 −0
Q&A Flyback converter design

Hi guys,I'm designing a multiple output flyback converter with 2 outputs at 10v@1 Amp and 5v @ 2 Amps .Input is 20 V dc Im having some problem with the implementation of closed loop. Open loop res...

2 answers  ·  posted 3y ago by Sriram14‭  ·  edited 1y ago by Lorenzo Donati‭

Question flyback-converter SMPS DC-DC-conversion
71%
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Meta Do we need tags for supply voltages?

Someone just created the tags 208VAC and 230VAC. If think we need to create a policy about tag usage related to supply voltages. Clearly, stating the supply voltage is highly relevant information ...

2 answers  ·  posted 3y ago by Lundin‭  ·  last activity 3y ago by Olin Lathrop‭

Question discussion tags
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Q&A What is minimum resolution here?

On page 26 and 27 of that manual, it lists accuracy and resolution separately. The accuracy is how far away you should expect the measured value to be from the actual value. The resolution is the...

posted 3y ago by dsr‭

Answer
71%
+3 −0
Q&A Asynchronous connection question

Assuming you speak of UART, then the receiver must be told in advance the number of data bits, the number of parity bits and the number of stop bits. The start bit is a logic zero (low) and the sto...

posted 3y ago by Lundin‭  ·  edited 3y ago by Canina‭

Answer
71%
+3 −0
Q&A Resistance of digital ampmeter

You might get lucky and be able to measure the input resistance using this method. It should work because the black socket (common) is shared by all measurements.

posted 3y ago by Andy aka‭

Answer
71%
+3 −0
Q&A Low-frequency PWM-controlled Mosfet heater circuit

This answer is regarding the resonance issue that C2 is fixing, and how it could be done with a smaller cap. There are two aspects of it. To start, consider the 5.6uH vs the 10uF capacitors. It ca...

posted 3y ago by Pete W‭  ·  edited 3y ago by Pete W‭

Answer
71%
+3 −0
Meta React feature guidelines?

Example of answers that should be classified as Dangerous: "Do it yourself" Q&A where someone is fiddling around with 230VAC electronics or other such potentially lethal power sources withou...

posted 3y ago by Lundin‭

Answer
71%
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Q&A What is the difference between rise/fall time and Turn-On/off Delay Time?

In general, the on/off delay is how long it takes from changing the input until the output starts to do something. The rise/fall time is how long it takes to do the something, once it starts doing...

posted 2y ago by Olin Lathrop‭

Answer
71%
+3 −0
Q&A Ceramic filter vs ceramic resonator

The Murata part you have chosen as a replacement is unsuitable. Its only application is to cheaply replace crystals in oscillators and, as such, it will have a profoundly tight bandwidth (maybe les...

posted 2y ago by Andy aka‭  ·  edited 2y ago by Andy aka‭

Answer
71%
+3 −0
Q&A Energy harvesting from non-invasive current sense transformer

I have a non-invasive current sense transformer (SCT-013-030) which according to its datasheet it is voltage output type. I want to harvest energy and supply a wireless sensor that consumes 5-6 uA...

1 answer  ·  posted 2y ago by DeadMouse‭  ·  last activity 2y ago by Andy aka‭

Question sensor energy-harvesting
71%
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Q&A Power amplifier for remote controller

#1 before anything else is to do your homework. The Nordic semi web site says: "nRF24 Series Not recommended for new designs". That means forget about using this part! They are phasing it out of pr...

posted 2y ago by Lundin‭  ·  edited 2y ago by Lundin‭

Answer
71%
+3 −0
Q&A Is it possible to calculate the rise/fall time of an operational amplifier ?

I am planning to use the LM318 operational amplifier to generate a PWM signal and I need to know how to calculate the rise/fall time. LM318/LM218/LM118 datasheet -The slew rate is 70 V/µs maximum...

1 answer  ·  posted 2y ago by deleted user  ·  edited 1y ago by Lorenzo Donati‭

Question opamp rise-time fall-time
71%
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Q&A Is it possible to calculate the rise/fall time of an operational amplifier ?

Rise and falls times are limited by the maximum slew rate the opamp can produce. This is something you look up in the datasheet. Note that the slew rate might be dependent on supply voltage and p...

posted 2y ago by Olin Lathrop‭  ·  edited 2y ago by Olin Lathrop‭

Answer
71%
+3 −0
Q&A Power amplifier for remote controller

According to the datasheet that Andy linked to, the chip can be configured for 0 dBm output. With the proper antenna, that is probably good enough for 20 m, but you'll have to test it yourself to ...

posted 2y ago by Olin Lathrop‭  ·  edited 2y ago by Olin Lathrop‭

Answer
71%
+3 −0
Q&A Power amplifier for remote controller

The data sheet gives a perfectly good example of using the nRF24L01 without an external PA. It has an internal PA capable of driving an antenna <-- just look at the design example on page 63 wit...

posted 2y ago by Andy aka‭  ·  edited 2y ago by Andy aka‭

Answer
71%
+3 −0
Q&A Can confusing the plugs for earphones and microphones do any damage?

Yes, plugging a microphone into a headphone output could possibly damage the microphone. Microphones are designed to work on tiny vibrations and tiny currents. A dynamic microphone will work back...

posted 2y ago by Olin Lathrop‭

Answer
71%
+3 −0
Q&A Altium. Reusing schematic symbols for pin-compatible parts.

I want to create a schematic symbol and reuse it for multiple ICs which have identical pinouts. For example, OpaMPS, or the venerable SN74LS00, SN74HC00, SN74HCT00. How can I do this in an Altium...

1 answer  ·  posted 2y ago by Nick Alexeev‭  ·  edited 1y ago by Lorenzo Donati‭

Question schematic Altium software-library
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Q&A Circuit which create ac sine wave from dc pulsed signal

This is about as simple an analog inverter that I can simulate, but warning, not for the beginner with resonance issues. The bridge diodes are 2f multipliers reduced to logic level with divide by ...

posted 2y ago by TonyStewart‭  ·  edited 2y ago by TonyStewart‭

Answer
71%
+3 −0
Q&A Circuit which create ac sine wave from dc pulsed signal

There is no "simple" circuit that does the reverse conversion of what a full wave bridge does on a sine wave. However, it is possible to get there from here. Most of what you are asking about is ...

posted 2y ago by Olin Lathrop‭

Answer
71%
+3 −0
Q&A Pick & place file generated by Altium does not match the actual component rotations/positions

I am generating files for manufacturing my design in Altium 22 and ordering through Eurocircuits. What I noticed during the ordering process is that the rotation of many components (and sometimes ...

1 answer  ·  posted 2y ago by Mu3‭  ·  last activity 2y ago by DSI‭

Question pcb-assembly Altium
71%
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Q&A SPI modes difference

From the point of view of the SPI peripheral (and any debugging tools you have directly connected to the SPI bus), there is no difference between SPI stream and memory-mapped SPI. The difference i...

posted 3y ago by DavidCary‭

Answer
71%
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Q&A Thermal relief for through-hole on multi-layer PCB

That's a rather strange thermal relief pattern. It's also not clear where the hole is supposed to be. A proper thermal pattern has a plated hole and annular ring around the hole as usual. Then t...

posted 3y ago by Olin Lathrop‭

Answer