All Questions
Tagged with buck power-electronics
129
questions
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Buck Average Modelling
I completed average modelling with Voreperian PWM switch model as described in Christophe Basso's book "Transfer Function of Switching Converters" and I compared the average model with ...
- 119
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1
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Buck Converter Peak Current Mode Control Average Model
I am trying to understand average model of Buck Converter for Peak Current Mode Control Topology.
Below snapshot taken from Christophe Basso Webpage(https://powersimtof.com/Spice.htm) from file "...
- 119
2
votes
1
answer
77
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Peak current mode control loop compensation calculations
I recently came across a rather nice straight-to-the-point application note by RickTek (AN028) on how to calculate approximately the compensation network of a PCM buck regulator.
Link : https://www....
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3
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6
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What is an intuitive explanation on how a buck and boost converter transfer energy?
I can understand how a buck converter can step down the voltage but only with the formulas. I am struggling to understand intuitively how the inductor stores energy and releases it in a way so that ...
- 31
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3
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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....
- 407
7
votes
2
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How do buck regulator modules with integrated inductors manage to be so small?
This 20 A buck regulator module from TI is 6.5x7.5x4 mm and has an internal 330 nH inductor.
This 6.5x6.5x3.1 mm 330 nH inductor from Coilcraft has an RMS current rating of 18.8 A and is the smallest ...
- 95
1
vote
3
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194
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MCU Controlled Buck Converter IC
I am designing for an application where I need a buck converter that takes the voltage from a 2S Li-ion battery (6-8.4 V) and the load I need to drive is 0-6 V and will take 1.2 A max. I need to ...
- 113
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Identifying MOSFET (P9DVA) and diode (AD6) Markings
I need help identifying a MOSFET and a diode in a circuit, specifically on the Pololu board D24V25F5.
While researching, I came across information about a diode (NSVR0340) with the AD4 marking. ...
- 903
2
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1
answer
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Buck converter inductor waveform having high ripple and slow charging and fast discharging [closed]
The following shows the voltage (green) and current waveform (yellow) across an inductor in a buck converter designed to step down 30 V to 15 V with 0.2 A output current.
The inductor values according ...
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1
answer
68
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Schematic review MAX20029ATIAV
I am using a MAX20029ATIAV in my design for powering a Quad Tunneling GMSL2/1 to CSI-2 Deserializer.
MAX20029ATIAV is Quad Low-Voltage Step-Down DC-DC Converters.
My schematic is given below. May I ...
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3
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3
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741
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Input impedance of a buck converter
Is there an approximate formula for calculating the minimum value of the input resistance (or impedance) of a switching regulator? I found several formulas but can't figure out which one to choose. I ...
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93
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Buck converter with some big ripples
I am simulating a buck converter (schematic at the end) (datasheet) and I observe bigger spikes in addition to the normal ripple. In the screenshot below, Vout is in green and the buck converters SW ...
- 190
-1
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1
answer
93
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Problems with buck converter
I designed a PCB with two LM61495 buck converters. They should produce a 3V3 and 5V output. However, for both circuits, the output is 12V. The picture below shows the output of one of the channels ...
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2
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1
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321
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Identification of IC used in Pololu 5V, 5A Buck Converter (my2101 330)
I have identified the chip on the Pololu 5V, 5A buck converter as my2101 330, but I am having difficulty finding information about this chip on any platform. I've checked the Pololu resources page (...
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3
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337
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Buck Converter Step Response Analysis
I am new to power electronics and control, so I am confused with the following. I have a simulation of a Buck converter, and PID controller in Simulink. I did some trial and error tuning, and I have ...
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