Top new questions this week:
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I'm looking for best practices for transmitting an analog sensor signal over long distances to a microcontroller such as the Arduino running at 3.3v or 5v. Keeping costs low is imperative.
SPI and ...
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I've stumbled upon a LED's datasheet that includes a strange recommendation. They want me to drive the LED at >5mA for reasons of "long term performance." I've never seen a similar thing anywhere ...
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I racked my brain through my comp-arch class and reread wiki’s article on hardware registers (they’re flip-flops, I get that), but one year later and I still don’t understand what a register ...
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I'm reading through Hayt's Engineering Circuit Analysis 9e and it does a fairly good job of giving the intuition for "where" the energy is going in a damped RLC circuit, but I'm hoping that someone ...
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I don't come from an Electronics background, so please bear with me. Assume an Intel processor wants to talk to a temperature sensor over the I2C bus. How does the underlying communication look like? ...
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I have the following LTspice simulation schematic.
(It's a simplified version, just to demonstrate my dificulty). The LTspice simulator returns a paralleled voltage sources error even when the ...
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I have a transformer with several secondaries, and this is how I'm planing to control the inrush current:
simulate this circuit – Schematic created using CircuitLab
I'm using a resistor ...
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Greatest hits from previous weeks:
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In this heavily upvoted answer the answerer states that it is okay to supply a component with more current than what it's rated for. The analogy is that (paraphrasing here) "If Johnny wants to eat two ...
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I want to connect the output from the audio jack of an iPhone to an Arduino.
What voltage range can I expect to see on the audio lines from the iPhone? I assume that turning the volume up on the ...
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I am confused on the terms Open, Short, and Closed when talking about circuits. As far as I know:
a) Open circuit means the wires are cut off so there will be no current flow, but there is voltage.
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So this seem like a simple question, but I'm trying to flip components in the schematic editor. If I select a component then use the keyboard shortcut X or Y, it brings up a menu and does not slip the ...
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I've come across multiple mentions of switches described as 1NO1NC.
They often described as having 2 options: ON/(OFF) and (ON)/OFF and from what I gather they have 3 terminals for wires: a NO ...
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What is the reason for using h-parameters when describing transistors? Why are they used instead of the physical description?
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What is Offset null in 1st and 5th pin in IC 741 (Op-Amp)? Why it is used, though it is not used in many circuits? Give me explanation regarding the offset null!
Why offset voltage was formed in IC ...
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Can you answer these questions?
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I am developing a board which converts DisplayPort to LVDS. The LVDS is put through a PCIe switch and then fed to an APIX transmitter, which connects to the display.
There's a second video path going ...
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I've been teaching myself the basics of circuits for the last few months and have been enjoying going into chip schematics. I'm trying to understand why the resistor values are as they are. For ...
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I have a problem which consist in 1 bit RAM made of 3 MOSFETs. One of the questions is to calculate the maximum voltage that the memory element can receive. I have obtained the result by inspection ...
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