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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Maximizing power transfer from 50Hz AC line via toroidal current transformer
This paper looked at ways of achieving high power-to-weight ratio for harvesting power from a 50Hz overhead line.
https://findresearcher.sdu.dk/ws/portalfiles/portal/250674676/...
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Circuit analysis for DC-DC convertor SEPIC architecture
I'm analyzing the following reference design from Texas instrument for making a variable dual output (+/-60V form 11V):
What I'm curious to know is to understand the signal waveform for the following ...
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plecs simulation of output impedance of switched capacitor(SC) converters
I am trying to simulate how output impedance of several DC/DC switched capacitor converters(dickson, ladder, and series-parallel) changes as switching frequency increases.
I referred to several papers;...
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Filter on SEPIC architecture output for making +/- 60 V from 11 V input
I'm working on a LM5155 Boost/Flyback/SEPIC controller reference design PMP40488 from TI. The goal of the design is making variable output (maximum +/- 60 V) from 11 V input. My question is related to ...
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Constant output voltage in buck-boost converters
I'm a self-taught student. I'm trying to understand the working principle of buck-boost converters in continous conduction mode.
When the switch is turned on, the equation describing the inductor is ...
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Derivation of the AC small-signal circuit and the canonical form of a DC-DC buck converter
I'm new to this forum and hope you can help me. I am in the process of designing an input filter for a DC-DC step-down converter 12V-5V/1A (Pic.1).
I am trying to determine the transfer function and ...
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Zener instead of resistor divider on dc-dc converter feedback pin
This dc-dc converter steps up voltage from 3.1V to 7.5V. I'm curious about the unusual D2 zener + R3 resistor to set the output voltage, instead of the traditional resistor based voltage divider. I ...
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Current spike through bootstrap circuitry during turn-on and off of HS FET (GaN FET half bridge dc-dc)
I am looking at the Vds overshoot behavior of Gan FETs through a half-bridge buck boost SPICE simulation. I have been varying gate resistance and parasitic inductance in the power loop. I noticed ...
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DC-DC converter to make variable output +/-70V from 5V input
This is a SEPIC DC-DC architecture from Texas Instruments to make a variable output from +/-5V to +/-70V. Iwould like to understand the principle of how the negative voltage is being made from the ...
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Bipolar 15 V DC from 9 V DC
I’m looking to get a regulated ±15 V DC @100mA minimum from a 9 V DC source. It’s for an audio circuit, so it needs to have a switching frequency well above audio range, and it needs to have a small ...
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Level shift a digital 1.8V signal to split supply rail, using BJT
I have designed a DC/DC converter (based on Zeta technology) that will generate a split supply with a single buck controller and coupled inductor.
The controller's GND pin is the negative output. ...
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DC-DC converter design simulation tools and Webench design tools to identify the best-suited IC and schematic
I did a research about what are the simulation tools and webench tools for major companies like AD and TI to find a effective tools for my design purpose:
For example for Analog Devices, there is the ...
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Does this DC-DC converter model require an external switching signal?
I looked at the datasheet TPS62742. It says that there is a required input DC voltage and it looks like an output voltage is produced but it says "sw" which I thought was where the switching ...
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RCD snubber loss in flyback converter
I have few queries in analyzing the curves. Below is the flyback converter with RCD snubber circuit and waveforms.
When the FET is turned ON, there is no primary current flowing through snubber as the ...
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DC-DC SEPIC convertor design
In a reference design form Texas instrument for a SEPIC architecture:
I noticed there is a specific consideration for connection between HVGND and PGND for LM3488 as follows:
At the same time that ...
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