Questions tagged [converter]
A circuit that converts a signal from one form to another: analog to digital, digital to analog, voltage to current, current to voltage, etc. The key to understanding is the transformational properties of the circuit, as opposed to just amplification or buffering.
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SATA to USB conversion: is it complex?
Recently I purchased a SATA to USB adapter. To be able to access 2.5-inch (laptop) and 3.5-inch (desktop) hard drives.
To my surprise, there is a board to do the conversion.
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Why there ...
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Forward biasing of diode bridge in a discontinuous mode operation of a three phase buck-boost derived power factor corrected converter
In this paper, they said that during mode 1 the diode bridge is forward biased because the output capacitor voltage is greater than peak line to line voltage but during mode 2 they are forward biased. ...
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How to create a BCD to binary encoder that supports multi digit numbers using only logic gates [duplicate]
I've been thinking so long about how can I make a BCD to binary encoder that can encode BCD numbers like for example 11 or even 32767 into binary form (11 ---> 1011) but using only logic gates.
I ...
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Can I connect buck boost converters back to back?
I need to power a Bluetooth speaker (Beatbox Portable) with a battery pack while also allowing DC power in.
I also want to use the input DC power to charge the four cell lithoum ion battery pack.
Can ...
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How does an AFE boost voltage?
I have an active front end unit that is connected to a 3 phase system. It's controlled via software and I can set a value for the DC bus voltage.
When the input is the AC 3-phase, how does this ...
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Design of an auxiliary power supply for high voltage converter
I have a half bridge converter going from 270V to 24V, and I need to create an auxiliary power supply for my controller/drivers/etc. So I need a design with a high step-down ratio in order to go from ...
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Single phase current requirements and minimum transformer requirements
To start, a generator is not an option for my situation.
I am looking to produce 208 V 3 phase delta using a rotary phase converter to power two robots. This is my first attempt at generating 3 phase ...
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What are the effects on the converter circuit due to lower vs higher switching frequency?
I know that lower frequency and higher frequency are selected based on the application. But I read that higher frequency will usually have more EMI harmonic distortions. It would be nice if anyone ...
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Synchronous buck converter using STM32 as feedback controller
I am planning to use stm32f103cbt6 MCU as a feedback controller (voltage or current) for a synchronous buck converter by using gate driver IC, mosfets, inductor, capacitor and etc. Is there any ...
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How to divide 12V/15A buck converter output into two outputs with the same specs? [closed]
I am currently working on a project to build a mini-atx pc for a rover. Heres a simple schematic of it :
The picoPSU Atx connector takes in 12V DC with a max of 15A peak and the zotac gpu 12V DC with ...
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Can I replace this broken potentiometer with resistors?
I have a 100-watt DC DC boost converter 10-32V To 12-97V like this one.
The micro potentiometer broke. I'd like to wire in resistors (since I have some.) I think I can do this because the output ...
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What options exist for isolating a high power DC analog signal? [closed]
I have a high power DC signal that can range from 0-325 VDC. The source is capable of delivering up to around 150 amperes at 325 volts. I need to monitor the voltage as an analog signal by reading it ...
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Derivation of formula for transformer maximum power
How can I derive the formula for the maximum power handling of a HF transformer with ferrite core utilized in a selected converter topology (push-pull for me). The formulas I have seen so far utilize:
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Power circuitry not coming up
I've created a PCB that has two buck/boost converters, the second one being connected to the output of first one. The enable pin of the second buck converter is connected to the PG pin of the first ...
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Thyristor T901N
The thyristor T901N in the Sinamics SL150 datasheet indicates constant operation limits based on temperature. In the datasheet, the continuous operation limits for this thyristor are as follows:
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Identification of Richtech voltage regulator
I have this regulator to replace but cannot find anything with the marking.
Except it's similar to a RT8249C or B or A.
Marking is 2N=6C 708.
Is it the same as a 2N=2C?
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Making DC-DC boost converter 3.7 to 8 V using MC34063
I am trying to make dc dc boost converter 3.9 to 8 V using:
mc34063
https://pdf1.alldatasheet.com/datasheet-pdf/view/12072/ONSEMI/MC34063.html
100 uF 16 V capacitor
220 uF 25 V capacitor
680 pF ...
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Reduce Vds peak in flyback converter
I am trying to design a flyback converter but the low side FETs suffers from high Vds voltage spikes.
The flyback with active clamp should convert 6 ~ 15V into 40 ~ 90 V. Power should be 100+ W. The ...
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HDMI > eDP 1.2 converter
I have a spare 15.6 laptop screen and want to turn it into a small portable monitor. By portable I mean that it should not require to be plugged into an electric socket. The screen itself only needs 3....
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Identify SMD DC-DC converter chip
I am trying to identify the DC-DC converter chip in the images below (two variants of the same PCB). Input (B1) is in the range of 20-60V and output is 12V. I have found devices from Torex Semicon ...
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Can a buck converter functioning in CCM have non-linear behaviour at light load currents?
I've been designing a Simulink/Simscape model of a TI buck converter launchpad (https://www.ti.com/tool/BOOSTXL-BUCKCONV) and I'm trying to have my model fit the behavior of the device.
The board can ...
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Why do we allow discontinuous conduction mode (DCM)?
I know that DCM occurs when ripple is greater than the DC component, but why would we allow ripple to be greater than the DC component? Don't we see ripple as something undesirable and try to minimise ...
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Need Voltage Converter for LED strip power
As an electronics hobbyist, I'm currently exploring a project where I have taken out the LED backlight strip from a LCD TV. I checked by supplying DC power to the LED strip and it takes around 75 V, 1....
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Low Side N-Channel 75V to 12V Buck Converter with feedback
I want to design a buck converter for E-bike with 75V input and 12V, 20A (240W ideal case) output to drive the other components of E-bike using n-mosfet as a low side.
I also want to use a feedback ...
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Capacitor fast charger
I’m trying to make very fast charger for my 1000 uF 450 V capacitor.
I saw this video on youtube
https://youtu.be/ug82NsxXL94
He managed to charge 1500 uF 450 V capacitor in just 2 seconds.
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Buck converter simulation(Psim) always return the half value of the output voltage
I try to design a buck-converter in PSIM simulation program. Let me write the circuit's requirements:
Frequency = 80kHz
Ripple < 0.5%
\$V_{input}\$ = 30V
\$V_{out}\$ = 12V
\$R_{load}\$ = 10 \$\...
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Tap power from 3D printer PSU to a Raspberry Pi 4
Would it be possible to power a Raspberry Pi 4 by tapping some power from the PSU of an Elegoo Neptune 3 Plus printer? Since the Raspberry Pi requires 5V to run I understand that I would have to get a ...
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What extra components are necessary to bypass a boost converter when the input voltage exceeds its regulated output voltage?
I've made a USB-C power supply that's powered by a wind turbine. It contains a boost converter and a separate buck converter.
I'm aware that there are several buck/boost USB-C power supplies out there,...
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Buck Converter Inductor Ripple Current and EMI
When attempting to reduce EMI at the schematic design stage of a buck converter it's often recommended that one minimize the output ripple voltage. It's clear why this would be useful.
Rarely is it ...
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Unexpected behavior S/H and ADC simulation
I am trying to simulate a primitive ADC consisting of sample-and-hold circuit on the left, unity-gain buffer to minimize drifting in the middle and flash converter on the right. The lack of decoder is ...
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Change in switching frequency across gate source
I am working on a bidirectional half bridge DC-DC converter. The converter circuit is shown below.
I used a TLP250 IC for the driver circuit. A square wave with 20 kHz switching frequency was given ...
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High to Low logic level converter with MOSFET
I'm designing a sniffer circuit to tap input signals from various machines. The type of signal varies from input pulses and UART communication, the voltage varies from 5V to 12V.
These are the ...
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Using 2 LiPo Batteries via 2 Buck Converters for External Notebook Power Supply - will it work?
I have an old ThinkPad X220T notebook of which the internal battery is broken (and removed).
To get my notebook working on the go again I want to build an external portable power supply with 2 LiPo ...
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I designed a boost converter based off of a Texas Instruments schematic. Can't figure out why they're shorting out after a while
I designed my first DC to DC boost converter, which was primarily based off of the schematics that Texas Instruments provides for it in the datasheet, and then fine-tuned (applying specific component ...
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I need help designing a low voltage DC to AC circuit
Can anyone help me design a circuit that will perform low voltage DC to AC conversion? Ideally, I would like to have
3 to 6 VDC input (using AA batteries)
Approximately 1 VAC output (less would be ...
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Reusing a HP laptop charger of 3 wires (logic inside)
I have an HP laptop charger 18.5v 3.5A (1X2057... WBGST0A...)
In the past the charger was working fine and I removed the tip for an experiment, so I can't check wires measuring the original tip.
Wires ...
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Synchronous buck converter designing issue
what I'm recently occupied with is trying to create a model and later build a synchronous buck converter. I've been doing some troubleshooting to try to resolve my issue, but honestly I just got stuck....
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24 V input, three 5 V outputs DC-DC buck converter design
I would like to make a DC-DC buck converter which has 24 V input and three 5 V outputs, but a typical buck converter circuits have only one output. How to change it to three outputs without an extra ...
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Find inductor for XL6019 circuit boost converter
I need a way on my PCB to step up 5V to 12V (with currents up to 2A). I've been looking at the XL6019 IC and tried to copy the design from the sample circuit of the datasheet:
I'm currently stuck at ...
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Why do some DC to DC converters use high inductor values (ie: 220uH or more), while some of them use much lower value inductors (ie: 3.3uH or less)
I've noticed that many DC to DC converters that have have almost the same current output will have inductors that vary vastly in their rating.
For instance, I've got two separate buck-boost modules ...
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RC circuit oscillator [closed]
I want to make a simple RC oscillator circuit that produces waveforms of
How can I do so?
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110 volt to 220 volt step up converter for air conditioner [closed]
Can I use some kind of plug in transformer to convert my 110V wall sockets to 220V to power a 30000 BTU air conditioner safely? The idea is to put in a 220V window unit in the same room as my central ...
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Accurate output of Flyback converter
I am currently designing a isolated power supply based on a flyback converter with the MAX17690. I am using this ic because I cannot add feedback for my application. However, in the design the voltage ...
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Help with custom monitor 12 V adapter
I have an electrical question about a custom adaptor I want to build.
The monitor im using:
philips 258B6QUEB/00
https://www.philips.co.uk/c-p/258B6QUEB_00/brilliance-lcd-monitor-with-usb-c-dock
It ...
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Convert PWM to serial [closed]
I am currently working with a system that communicates several angular positions and several actuator commands through PWM signals at 500 Hz.
My question is, what is the industry standard for reading ...
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Flyback transformer design process review
I was hoping I could get some verification on my flyback design process, and some questions answered.
The document I was following is from Fairchild, AN4137, and the steps below essentially outline ...
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Is there a buck-boost converter with I2C digital control from a microcontroller?
I want to build a portable pocket power supply with a digital voltage/current control (controlled by Arduino).
After doing research I realized that there is no simple way to do it with simple buck/...
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How can I test an LCD with an RGB port?
I want to test this LCD. When I connect its power, the message "no signal" appears on the screen. How can I send a simple signal to it for testing?
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Boost Converter Loop Gain Issues
I have recently started using PSIM. I'm generating power stages of non-isolated topologies and stabilizing them to get used to PSIM. I've done a buck converter, and now I'm looking at a boost ...
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