All Questions
Tagged with buck power-supply
224
questions
0
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17
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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
answer
98
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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
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23
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Does a buck-boost converter serve as enough circuit protection for an automotive application? [duplicate]
I am designing a circuit for a automotive application which is meant to map voltage ranges between two airflow sensors (i.e. 1 sensor has an output range of 1.75-7.0V and I want to replace it with a ...
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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votes
4
answers
565
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Inductor energy storing in buck converter
I am trying to understand inductor energy storing during ON time in buck converter.
Energy stored in inductor of buck converter is (Input Power -Output Power)*Ton
Lets say output power is 5 W and ...
- 119
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1
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165
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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 ...
- 355
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35
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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 ...
- 145
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108
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Should I put my buck-converters in parallel or series?
I'm supposed to have two voltages coming out of two buck converters. My starting voltage is 12 V while the buck converters are supposed to output 5 V and 3.3 V respectfully.
Should I make the output ...
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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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60
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Best power supply configuration
I'm making a power supply board with a buck converter for a 2A maximum and I would to know which is the best configuration between these two:
Is it best to put the input filter, a parallel damped LC ...
- 61
1
vote
1
answer
89
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Custom buck converter putting out 1V instead of 5V
I "designed" a simple buck converter, which is basically a clone of the 5V reference design in the TPS6293x datasheet. Unfortunately, my converter is only putting about 1V (closer to 0.95V). ...
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78
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Circuit to convert 14.8v battery with max 4a discharge current into 12v, 9v and 5v output?
I am making a robot with multiple devices mounted on top. I am planning to buy either a 14.8v or 11.1v Li-ion battery which has internal BMS limiting maximum discharge current to 4A. Now I need 9v for ...
- 45
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20
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Deriving Power Budget for SAMA5D27C from Datasheet
I am spec'ing out my power distribution network and trying to figure out what Buck converters I am going to need for a Microchip MPU design using SAMA5D27C. I am looking through the data sheet below ...
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1
vote
1
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125
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Burning sound from the PSU
I am trying to make a bench power supply from an old 350W PC PSU
that provides 4 lines
3.3V 8A
5V 9A
12V 11A
-12V 1.5A
Here is the connections diagram:
I used this step down module to be able the ...
0
votes
1
answer
130
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Buck converter not behaving as anticipated with new trim pot resistors
I recently purchased a 300W buck converter from amazon 1 which has two 3296W 100K trim pots to control the constant current and constant voltage output. My plan was to use them as bench power supply ...
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