Questions tagged [dc-dc-converter]
DC-DC conversion. Implies conversion of a DC voltage level up or down. DC-DC converter can be isolated or non-isolated. Electronically it can be done by many kinds of circuits, depending upon the application (charge pumps, voltage multipliers, linear voltage regulators, boost/buck switched converters, etc)
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mt3608 in-rush current
I have been testing MT3608 based DC-DC step-up converter from Ebay. These boards are popular, extremely simple and implement just the basic circuit from the IC datasheet.
Reverse engineered circuit ...
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How can I improve the feedback portion of my boost converter circuit?
I designed this boost converter to drive vacuum florescent displays, nixie tubes, and similar devices.
It can drive a 10k Ohm load at 235V. I'm sure I can get away with larger loads as alot of the ...
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Op amp as a comparator output turning partially high when it's supposed to be low
I'm using an AD823 op amp, as a comparator as part of a feedback loop in a boost converter. Although the boost converter and feedback portion functions as desired, the problem is when I check the 13 V ...
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How do flyback converters operating in CCM regulate their output?
I'm trying to train up on isolated power converters and magnetics.
I am going through a webinar series created by Electronic Minds out of the UK called Powerful Knowledge. It's on YouTube if you'd ...
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SiC461 regulators unpredictably dying under load
I am having problems with a design using SiC461 regulators.
I attached a snippet of the relevant schematic file. The problem I am facing is that under load (powering an LED strip with peak current of ...
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Why is Duty cycle for CC LED driver voltage specific, when Output voltage has a compliant range?
Commercial CC drivers usually mention "x-yV output" range which means that the output voltage has a compliance range where CC operation will be maintained in constant current mode. But then ...
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Can one CC boost LED driver be used for 2 different loads separately?
I have a constant current boost LED controller (TPS92691) which I am designing to output 4A switching between two LED strings. This is with a 2S lipo battery. One string has a stack forward voltage of ...
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Does a current sense resistor not always mean a constant current output for dc-dc converter?
I've had a understanding that having a current sense resistor feeding into sense pins or a feedback pin meant that the inductor current was changing wrt the variations across sense resistor, hence ...
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Apart from MOSFET selection what else determines max output current for LED controller IC?
TPS92691 is a LED controller, not a monolithic IC which has an integrated FET. Hence, I'm curious why the landing page for this part (https://www.ti.com/product/TPS92691) mentions that Iout(max) is 5A ...
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DC-DC design with STUSB4761
I am designing a powered USB HUB (UFP) which can provide power to the host through USB PD. This means I need a PD controller which supports DR_Swap and it seems that STUSB4700/STUSB4710 cannot be used ...
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What's the best way to "sip" some power out of a high voltage dc solar system? [closed]
I am designing a product for utility scale solar panel systems that operates at a maximum of 1500 V DC per circuit. For convenience, I'd like to power some electronics by tapping into the 1500 V DC. ...
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Creating higher voltage from DC motor
I have a DC motor (5 V, 600 rpm). I use it as a generator. It produces near 1.5 V max.
This voltage may differ while using it in the application and I can't control it. I want to raise this voltage to ...
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How does \$R_{ISET}\$ work in this Boost Converter?
I'm trying to design a boost converter for a backlight which has Vf:10.6-13.6V, If:140mA
I picked AP3031, I did steps required to find component details e.g Inductor Value, Iswmax
So far I understand....
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What is the origin of the names "forward" and "quasi-resonant" converters?
I'm curious about the names of some types of converters, such as forward and quasi-resonant converters. Why are they called forward and ...
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Voltage drop issues in LTspice simulation for buck converter using SW model
I have a LTspice design issue where I encounter the same problem, even when I use other available simulations.
Whenever I increase the load, there is a significant drop in voltage, despite having ...
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