Questions tagged [switching-transients]
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40 questions
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Transients at an ESC powered with 12VDC over long wires
Suppose that we are forced by dumb requirements to supply low-voltage DC power over long (25m) wires to an ESC and its brushless DC motor (I know this is bad practice). The supply wiring inductance ...
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How can ceramic input capacitors cause overvoltage transients?
I was going through this article from Analog devices.This document mentions voltage transients in ceramic capacitors. This is given below.
This does not explain why transients are produced in ...
- 4,011
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Is it important to account for transient voltage when designing an electric circuit?
I've been learning basic electronics lately (I have some high level understanding, and basic electromagnetism knowledge, but never got too deep into the details before).
I got curious about the ...
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Transient analysis of RC DC circuit
The task is to find the current that flows through capacitor C. I tried to analyse the circuit using mesh analysis but failed. I need to find the current through C during switching (t=0) and steady-...
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Do all SMPS ICs have an internal dead-time for the MOSFETs, specifically the LTC7878?
I am trying to improve myself in power electronics and currently trying to build a Buck-Boost converter. I chose LTC7878 for this purpose since it meets my requirements.
My issue is that while I am ...
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2
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Transient analysis in presence of faults
While reading Shenkman's Transient Analysis of Electric Power Circuits I came across the following problem:
... This circuit represents the equivalent of a d.c. supply network. At the instant of time
...
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Is it good idea to cascade SEPIC converters to extend the input voltage range of the XL6009?
I'm currently working on designing a current controlled SEPIC converter with a wider range of input voltage for a medium sized power application which can be powered by a lithium battery.
The existing ...
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Switching times of a MOSFET
I've encountered a problem that I don't understand. Let's take two MOSFETs of the same model and the same batch (one with lower on-resistance (V1.T1) and the other with higher on-resistance (V1.T5)) ...
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ESP32 bootloader circuit exchange with MOSFET:s
I was looking at ESP32 documentation typical application setup, I researched the schematic below which has been referenced and discussed as a time sensistive circuit using the capacitor to delay en to ...
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2
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How to protect a high-voltage output stage from very high transients
Usually in electronics, one can use MOV or TVS diodes to get rid of voltage transients. That's because most applications run at a voltage of 500 V or less.
But assume I want to protect the output ...
- 1,968
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Load-dump grade TVS diode - datasheets misleading?
This datasheet seems to promote specific TVS diodes as good for absorbing an automotive load-dump. This graph seems to support the idea:
However, these other graphs seem to contradict any load-dump ...
- 1,158
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Transient peaks during MOSFET switching (feed-forward)
I am working on a circuit, part of which looks like this:
Signal SW is switching the MOSFET on and off such that the nodes ac+ and ac- are shorted (modulated). When SW is high to turn on the MOSFET ...
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2
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Peak switching power in MOSFET as seen in LTSpice, and reduction using snubber or gate resistor
I am exploring a tentative design to limit current for charging a VFD bus link capacitor from the AC mains. Simple analog current limiters using resistors and transistors are inefficient and ...
- 7,775
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RLD + RC Snubber for MOSFET
I'm currently making a DC-DC SMPS power supply that converts 331VDC (rectified from 240VAC) to 60VDC with a maximum output current of 10 amps. I've asked once on this forum about a general problem on ...
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Using AC rated thermostat to control DC current? Hope to use an AC rated thermostat to switch a DC current into a solar charge controller
I need to turn off solar input ,DC, when battery box gets below freezing. I can only find AC rated remote bulb thermostats for this as they do not use battery energy for switching. Switching current ...
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