Questions tagged [voltage]
Voltage, otherwise known as electrical potential difference (denoted ∆V and measured in volts) is the difference in electric potential between two points (adapted from Wikipedia). Voltage can be constant (DC) or varying (AC).
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What is the purpose of transistor T in this reference-voltage generation circuit?
https://www.researchgate.net/publication/2978882_A_025-m_30-V_1T1C_32-Mb_nonvolatile_ferroelectric_RAM_with_address_transition_detector_and_current_forcing_latch_sense_amplifier_scheme
I understand ...
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Does On-Chip Decoupling Negate the Need for PCB PDN Analysis
I am preparing a PDN decoupling simulation for a KSZ9897RTXI switch, which utilizes 1.2V, 1.8V, and 2.5V rails.
I am trying to establish the maximum frequency range for my target impedance analysis.
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Understanding Physical Layer Signaling: Do High-Speed SERDES (PCIe, USB) Rely on Differential Current Steering?
I’m looking to verify my understanding of how high-speed interfaces like PCIe and USB handle multi-Gbps data rates at the physical layer without compromising the Power Delivery Network (PDN).
My ...
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What is the physics behind the series connection of galvanic cells, and why does the total voltage increase?
This is a passage from a book I am reading (Rudolf Svoren, Electronics Step by Step):
The processes in a galvanic cell can be described in a simplified way as follows. As a result of chemical ...
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Evaluating Battery Alternatives
I have a 9V toy train motor manufactured by Bühler Motor GmbH that was originally powered by a 9V battery (48.5×26.5×17.5 mm³). Unfortunately, I can't find the exact model number of the motor, but I'...
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Inductors and its behaviour
Why does inductor hate sudden change in current ?
How is it generating voltage when the suppled current stops abruptly?
Why does it take time or why does it resist current in the beginning ?after all ...
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Wall wart for Atari 2600 shows 17v-34v when it should be 9v
I just bought an Atari 2600 Vader on eBay. It came with what I assume to be an original power supply/wall wart. Because the plastic case had cracked open on the PSU and was held together with ...
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Determining Max Frequency for PDN Analysis
In PDN AC Decoupling analysis, the simulation bandwidth typically ranges from DC to the maximum frequency of interest. Since Fmax is driven by the instantaneous current draw during signal transitions, ...
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Modeling a VRM through a Ferrite Bead for PDN Simulation
I am performing a PDN simulation for an MCU-based design where a MIC4684 DC-DC regulator provides a 1.2V rail (5% tolerance) with a maximum current of 0.5A.
My current design involves a bulk capacitor ...
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Is this voltage regulator using LM358 circuit correct?
This is a follow- up question from this question.
So, I made a circuit of variable power supply using IC LM358. In circuit 1, With a reference value using voltage divider, it gives output of 50% of ...
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Why is the IEC 60950-1 AC peak touch safe voltage lower than DC?
Why is the IEC 60950-1 AC peak touch safe voltage (30Vrms * sqrt(2) = 42.4Vpeak) lower than DC voltage (60VDC)?
Why is AC and it is 42.4Vpeak instead of 60Vpeak?
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Determining the maximum instantaneous current of a voltage rail
I am currently performing a Power Integrity (PI) AC analysis for an Ethernet design and need to define the target impedance for the AVDDL core rail. This is the device
While the datasheet identifies ...
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Drop Voltage car_rc
I’m writing as a follow-up to the previous post I made about building an Arduino RC car. Last week I was experiencing a voltage drop issue, which I’ll leave referenced below.
I measured the voltage ...
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KA75330 Voltage supervisor with MOSFET to power/reset DFPlayer mini
We're creating solar powered bird callers for the preservation of swifts using a TP4056 module and DFPlayer mini (Spikey audio).
These callers need to be simple and completely recoverable and so turn ...
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Measuring inductive voltage of transmission line in a shield control cable core
I'm trying to develop a method to measure the induced voltage from a energized circuit in a shield control cable core.
I'm considering to ground the shield (one end) and apply the circuit below.
what ...
