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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Boost converter two different voltages (9v/12v) from 3.7v battery, attach both to battery, or daisy chain off 9v
I'm sure this has been answered plenty before but I cant seem to get the search terms. I'm wanting to use a 3.7v battery to power a small 9v device and a 12v device at the same time using a boost ...
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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 ...
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Current Drawn from Bulk Capacitor at LED-Strip Output
I want to design a power supply (buck converter) which converts 9 V to 5 V and supplies it to the LED strip. The LED strip is a basic 1 meter long 70 LEDs/meter WS2812B strip. In my project, I want to ...
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Variable DC-DC Buck Converter not working
I am building a variable power supply based on https://www.ti.com/tool/TIDA-050012
There are three GPIO signals that go to the MOSFET. The USB controller toggles one of the three GPIO signals to ...
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What should I do when clearance boundaries overlap with SMD pins?
I am brand new to layout design. I am using the TPS62136RGXR buck converter in my design. However, according to the attached image, the pin's clearance boundaries (0.2mm according to JLCPCB's assembly ...
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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 "...
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Peltier cooler driving circuit
To prevent closing as duplicate immediately, there is the list of the most relevant questions:
How to drive a Peltier element?
Driving a Peltier w/ PWM or analog out
Driving a Peltier element with ...
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Power Board Optimization
I've created a buck converter schematic that converts an input voltage of around 16.8V to 5V at 8A using the Sic477 buck converter. You can see my design below. While it produces the correct output ...
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Current sensing in DC-DC converter
I studied DC-DC converter in peak/valley/average mode control and I have a question about the methodology to sense the current in average current mode control. I saw lot of paper about DCR sensing but ...
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IR2104 not producing PWM signal
I made this simulation circuit by the reference of its datasheet. I want to simulate the input PWM signal from MCU (ESP32) and control on/off of IR2104 by ESP32 too. But the problem is, this circuit ...
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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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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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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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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 ...
