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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Drop voltage from 4s Li-ion (16.8v) to 15v and lower for 12 DC-AC Inverter
I am making a high capacity battery bank that uses a 4s Li-ion cells from a car manufacturer. With Li-ion there is no 12v direct drop in replacement as it ranges from 16.8 full to 12.8 empty. So here ...
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Bootstrap Capacitor in Half-Bridge
https://www.ti.com/lit/an/slua887a/slua887a.pdf
In the above app note:
Can someone explain what the IHB_fsw term repersents?
How is I_HB different to I_HBS?
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DC/DC buck regulator regularly emits an audible clicking noise
Relevant TI forum post with no resolution: here.
I am using an AOZ2264NQI-11 chip to convert 24 V down to 12 V. I originally designed this circuit for use with an AOZ2261NQI-12 chip, which has an ...
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Buck Boost Driver to switch 2 LED chains
simulate this circuit – Schematic created using CircuitLab
I'm working on a project to turn 2 LED strings (each containing 6 HB LEDs).
Here is my question.
The Buck Boost driver I'm using is ...
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DC to DC voltage step down converter on PCB
I'm a beginner and I'm designing a PCB where I want to power my PCB from a 12-24 V DC car charger.
On PCB itself, I want to use 5 V and 3.3 V for different components, so for this purpose I'm trying ...
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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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12V to 5V buck converter - why did my IC fry?
I assembled a 12-to-5V buck converter from an LM64460-Q1 (datasheet) based on the design that Webench produced (design below).
I attempted to slowly (safely) ramp up input voltage with no load ...
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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 ...
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Fan control using buck converter
I have a 12 V motorcycle battery hooked up to a buck-boost converter, giving me a constant 12 V supply. This buck-boost converter is then hooked up to a normal buck-converter giving me 7.5 V. I know I ...
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What is the relation between the control voltage and resulting pwm in a voltage-mode control system for DC-DC converters?
I'm currently learning about negative feedback and voltage mode control for various DC-DC converters. I'm very confused about how the control voltage changes the pwm signal, along with how the ...
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Non inverting buck boost transfer function
When considering the compensation of a non inverting buck boost (single inductor), the datasheet considers to take into account the worst transfer function between the buck transfer function and the ...
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Driving a P-channel MOSFET with high voltage input
I designed a buck converter as an MPPT charger using high side switching. It seems the signal on the gate of the MOSFET good. If a solar panel with low voltage like solar MPPT 18volt there isn't a ...
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54 V to 5 V using LM2576HV
I have a requirement to convert 54 V battery output to 5 V. My battery's positive terminal is grounded. I tried the connection as mentioned in the datasheet which is attached here, but as soon as I ...
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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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Single input dual output simulation help
Ive been using PSIM and there is a problem with the circle mosfet wont turn on. Ive the correct duty cycle and input voltage is higher than the threshold. Can someone simulate it on another simulator ...
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