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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For a high powered LED loads, is a buck or boost converter more efficient / simpler?
I have a 3 high powered LEDs hooked up into a strip to for the load. For simplicity, I am going with a constant voltage driver. The load can be hooked up in 2 configurations:
Config 1:
3 Green LEDs (3....
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Should I limit inrush current of this MOSFET buck regulator?
I am building a digitally controlled constant current switching power supply. This circuit will deliver no more than 105 Watts at around 20V from an AC-DC DIN rail SMPS of 250W.
You can see and ...
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I'd like to design a buck converter that charges the battery pack
I'd like to charge the battery pack with buck converter.
Previously, I had experience designing a 30W buck converter. At that time, I calculated the load to connect as follows.
But this time, I want ...
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What could go wrong with paralleling multiple DC boost converters?
My goal (edited)
My goal is to charge only one powerbank from separate sources:
A bicycle dynamo at 5.7V after the rectifier. Outputs 4W at best.
A polycristaline 10W solar panel that outputs around ...
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Current peak on a low EMI buck LED driver
I'm designing a buck LED driver using the LT8376 and I'm following the typical application for a low EMI solution (page 26).
On the output, the schematic proposes a 100 nF capacitor in parallel with ...
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Regarding the equation derivations of the resonant state of an asynchronous buck converter observing zero voltage switching
I'm currently reading this article of Bill Andreycak to understand the mathematics behind zero voltage switching: https://www.ti.com/lit/an/slua159/slua159.pdf?ts=1710666811170&ref_url=https%253A%...
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Audible Noise in MC34063-Based Buck/Boost Converter Circuit
I am trying to make a hotplate with an ESP32 and I use MC34063 for buck/boost converters. The hotplate itself require 12-30V to operate and the ESP32 and LEDs need 3.3V.
Here is the circuit:
When the ...
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0V with Electronic Load and CC Buck
Why would an electronic load show 0 V and a big current when connected to a constant current source?
The load is in constant current mode. Is that the culprit? Probably a constant impedance would be ...
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What is the "best" way to make a diy 7v rechargeable battery?
I have a device (the wii "sensor" bar, basically an IR LED array) that the literature says takes 7v. I can't find any battery offerings that come in 7v, but many that are 3.7v, so I am stuck ...
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Is the synchronous buck converter suitable for high current applications? [closed]
For I know, the reason why the efficiency of synchronous buck converters is higher than that regular ones is because they use a MOSFET instead of a freewheeling diode, and MOSFETs generally have ...
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Debugging buck converter IC having trouble reaching stable power good after short
I have a 5V power supply circuit from coming from a 12V in to 5V out of a TPS54620 on an FPGA development board I purchased. There was an incident with a bad header connection that caused a GPIO pin ...
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Why did my DC/DC Buck Circuit fail?
I'm in the process of debugging a PCB I made. On this board, a 24V input feeds through a DC/DC buck circuit (based around the TI TPS54202DDC) to output 11V, then an LDO to output 9V (to ensure a very ...
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Validate my 3V3 power system
My Power System, can someone validate it? I'm not familiar with using the TPS63060.
Datasheet can be found at: https://www.ti.com/product/TPS63060
I'm trying to power a ATMega328p-AU + 4 digit 7-...
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Average Modelling of Buck Converter
I am doing Modelling of Buck Converter for LT3890 (Datasheet link attached) for Frequency response analysis .
I have some reference model of Buck converter ,please refer below image
Datasheet Link: ...
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Help making a buck converter to step down 53 VDC to 48 VDC - max 300W
I need to step down from 53V to anywhere between 36V to 48V. Because of space constrains, I want to build a DIY solution. I have searched a lot but i cannot find any schematic/project that meets my ...
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