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Flow of electric charge - typically movement of charge carriers, such as electrons. Measured in amperes (A).

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1 answer
53 views

I have a question regarding the upper frequency limit for PCB-level PDN (Power Delivery Network) simulation. From Eric Bogatin's articles on Power Integrity, I understand that the "Bandini ...
Score of 2
1 answer
168 views

I have question for below circuitry: The primary section is the current limitation block and the other is the latch section to fully turn off the MOSFET during the overload or short circuit condition....
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1 answer
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The attached image shows the Power Analyzer configuration for my PCB. I would like to understand how to correctly configure the maximum current density for both surface and internal layers. For ...
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4 answers
162 views

My PC uses a 1000W power supply. I want to see what the W/hr looks like. Perhaps my understanding of electricity as a whole is flawed because none of the other examples I'm seeing makes any sense. Let ...
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1 answer
131 views

The following is a series pass regulator circuit: I searched on the internet but did not find a useful answer for the following questions: How can an adjustable current limiting capability be added ...
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1 answer
144 views

I am working on building a circuit for LED current control. I have done LED current control but driven by PWM in the past. I want to control the current using a DAC. I want to use an N-channel MOSFET ...
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2 answers
138 views

Source: Fundamentals of Microelectronics by Behzad Razavi I do not understand the line if the number of the electrons flowing from the n side to the p side is equal to that of the holes going from ...
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2 answers
107 views

Why does the current amplitude in a series resonant RLC circuit build up over several cycles instead of reaching its maximum immediately? I am trying to imagine how charge moves but i am only able to ...
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1 answer
80 views

I have an Aliexpress valve actuator equipped with a 50KTYZ 230V AC synchronous permanent magnet motor. It's the classic arrangement with two motor windings, one powered directly and the other through ...
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2 answers
181 views

This question is fairly basic but I just can't understnd it from a physics perspective. Say you have series circuit with a simple resistor, isolated from ground. If I touch the positive terminal of ...
Score of 1
1 answer
124 views

I have a STM32H742 CPU on a PCB and on 80% of them it works fine, but on some devices, the CPU VCC is shorting to ground (fried CPU) after random power-ups. Upon further investigation I suspect ...
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2 answers
168 views

I’ve designed a few circuits, and one problem I keep running into is how to properly choose the components that best fit my needs. It feels like such a simple question, but in practice it doesn’t seem ...
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1 answer
77 views

Title: Reproducing a current-mode controlled buck converter from a thesis in Simulink (unclear blocks and signal injection) I am trying to reproduce a Simulink model of a current-mode controlled buck ...
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2 answers
109 views

Calculating the permissible "Conductor current" in Saturn PCB calculator v8.45 for a temperature rise of 10°C at an ambient of 25°C gives a current of 2,0742A (top image) and power ...
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1 answer
75 views

Why are the TCF equations different for VTs and CTs, with one being "+" and the other having a "-" sign? See image below. Image source: IEEE Std C57.13-2016

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