Questions tagged [buck]
A non-isolated DC-DC converter topology which outputs a voltage less than or equal to the input voltage.
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Getting "Too few nodes" error
While I am trying to simulate this LM5164Q buck converter IC exported from TI, I'm getting the too few nodes error. How to rectify it?
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Input capacitance estimation for a buck converter
To estimate minimum input capacitance required for a buck converter to help with power stability & noise suppression, I came across below equation by TI.
https://www.ti.com/lit/an/slyt670/slyt670....
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Running a Motor Controller, Motor, and Raspberry Pi off the Same Power Supply
I have a 24V brushed motor, a Raspberry Pi, and a Teensy 4.1 microcontroller all running off the same power supply (a 24V tool battery). I have a step down regulator that converts 24V to 5V:
https://...
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Input filter for switching regulator
I'm trying to create an input filter for a switching regulator for automotive application.
My aim is to make a supply board, where from 24V come out 12V (from the buck) then 10V and 5V (from two LDOs)....
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Best way to control large buck converter?
I am looking for a faster way to control output voltage for a buck converter.
This buck converter has its own fet driver and I am not willing to change it. I really only need the signal to run the ...
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How do I properly import a .lib description into a LTspice symbol?
I am trying to simulate the TI part TPS62808 in LTspice, Pspice for TI, and Tina TI. I managed to easily run the simulation in the latter two simulators, but the models were specifically made for them,...
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Using a capacitor to handle the inrush surge power of a fridge
I have a household mini fridge connected to my off grid electrical system, and recently I bought a smaller inverter just for the fridge so that I can turn my larger inverter off to reduce power ...
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Unable to find Gvd of a buck converter using LTspice
I'm trying to simulate a closed-loop buck converter in LTspice. I'm using ideal components. I started by finding the Gvd of the buck converter (duty to output transfer function). I used the .ac ...
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Modifying XL4015 CC/CV Buck Converter for Undervoltage Lockout
I am trying to convert a XL4015-based CC/CV buck converter module to CV with undervoltage lockout. At this point I am hoping someone can double check my schematic for glaring errors before I attempt ...
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The best way to step down 12V to 5V with at least 10A current from a PS3 power supply for a WS2812B LED strip
I am new to electronics. I had a PS3 Super Slim power supply lying around, which outputs 12V up to 13 amps. Recently, I bought a 5-meter strip of WS2812B LED strip, which needs 5V, and the recommended ...
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Are the prinicples the same for designing a high side vs low side buck?
I am an analog engineer that is getting into SMPS design.
This is a high side buck:
This is a low side buck:
simulate this circuit – Schematic created using CircuitLab
Assuming that I take ...
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Synchronous buck battery charging circuit using totem pole gate driver
Background - We are trying to develop a very low cost buck (day time)/boost (night time) converter for charging LFP batteries (day time) and powering LED (night time). Due to cost impact we are trying ...
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Noisy signal output from BD2320 MOSFET driver
I need help or technical solutions relating to this issue I encountered with BD2320.
I intend to use two BD2320 drivers for an interleaved buck converter. One of the channels works well, but after ...
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Zero due to ESR in buck converter
How come the equation given leads to one answer for the zero location (marked 1) whereas my intuition leads to another (marked 2)
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How do I use the TPS5403 DC-DC buck to get 3.3V output from a 5-15V input?
I am trying to use the TPS5403 (datasheet) buck converter to power an ESP32 at 3.3V from an input of 5-15V, however, I can't find enough resources online to be sure in my design.
Below, I have ...
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