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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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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Do I have to place a gap in the GND plane to reduce noise from DCDC?
In the past I made few designs with switching power supplies and I'm aware about the needs to keep traces short and with low impedance (i.e. where possible use filled zone instead of tracks) and to ...
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Earth protection in PV + battery system
I'm building a system that looks like this:
PV -> solar charger (48 V) -> batteries (48 V) -> isolated DC/DC (48 V->12 V) -> non isolated DC/DC (12 V->3 V) -> load
The PV's are on ...
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Darlington NPN preregulator for LDO step down 42v to 12v ~ transistors keep blowing up
this is a follow-up from the original post about this circuit which can be found here. the purpose of this circuit is to reduce the voltage to a lower level that is more palatable for the LDO. and it ...
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Two switch forward converter with transient spikes on gate to source voltage - Part Deux
This post is about a similar problem seen in this similar post
This 2 switch forward unit has a 750V input, 72 volt output and was tested at 10 and 15 amps out.
This new board doesn't have the ...
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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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DC-DC(Buck) shuts down when LDO enabled (intermitent)
I've encountered a problem on SOME of the boards in pre-production batch, when the boards main 5V rail generated by a buck dc-dc converter shuts down at the moment when one of the loads generated by ...
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Mode selection for Boost converter
I am currently working on a problem for designing a boost converter. Below are the parameters that are used for the calculations.
Vin = 180V, Vout = 360V
L = 25 μH, Operating current is 15A and the ...
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Control multiple LM2596 with just one potentiometer
I have 20 of the cheap buck convertors (LM2596), On my boards there's this blue potentiometer on it which adjusts the output voltage very conviniently.
I wanted to use 20 of these buck convertors in ...
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Two-way analog signal converter
To begin with: I have almost zero electrical/electronic knowledge.
I want to have something like two-way analog signal converter. On one side there is 0V-15V and on the other there is 0V-3.3V. The ...
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Are unregulated charge pumps used in some applications?
As we see in SMPS converters that feedback is necessary to regulate the output. Here charge pumps are both regulated and unregulated converters.
I am curious to understand in which applications ...
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How can I protect a DC/DC converter when VIN is floating?
I'm using a L6902 (https://www.st.com/resource/en/datasheet/l6902.pdf) to charge a 4 cell lifepo4 pack (with a solid BMS).
Do I need a diode on the converter output (PACK+) to prevent the converter ...
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Correct Implementation of Flyback Diode, TVS Diode, and Snubber Circuit for Buck Converter?
I am fairly new to circuit design. I was wondering if I have correctly implemented the TVS diode (D8), flyback diode (D6) and the snubber circuit (R20 and C41) for this buck converter. I apologize in ...
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Analysing 42v to 3.3v DC converter circuit & component identification
I'm analysing a circuit responsible for generating 3.3v for a stm32f103c8t6 on a battery management system(10s). Its a completely proprietary battery management system with nothing online about it so ...
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designing power supply using LNK306DG [closed]
I am designing a converter circuit using LNK306DG and I have done this earlier. Now I have to swap the phase and neutral pins of the circuit, and what should be the changes I have to make in this ...
