Questions tagged [step-up]

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2answers
43 views

What is the importance of dc-dc booster efficiency?

I am going through Texas instrument web bench design suit and get 40% efficiency for some booster circuits if booster can handle the load (Vout and Iout) according to design given by TI what is the ...
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1answer
49 views

Is it possible to provide DAC voltage to VOUT_ADJ to control Vout?

I am using a TPS61391 booster. I need to adjust Vout via a DAC connected to FB pin voltage divider (VOUT_ADJ). is this possible? DAC voltage varies from 0 to 3.3V.
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1answer
82 views

Simple, compact 9V DC to 400V DC step up

I'm attempting to create my own Geiger-Muller counter based on an old, soviet STS-5 tube. I want it to be as compact as possible. I don't want to use ready-made modules, like this one, instead I ...
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1answer
38 views

What factors do I need to consider when selecting an inductor to use in a circuit with the MT3608?

I am trying to use the MT3608 chip to boost the power output of a 3.7V lipo battery from 3.7V to 5V, which will ultimately power an ATMEGA32U4 chip. Below is a picture of my circuit where I have ...
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2answers
71 views

how to demux 100V to 300V DC signal into 8 channels?

I need to 8 channels of 100Vdc to 300vdc, load current 10mA to 80mA. my idea is to use a step transformer to step up dc 5v 1A source to 300Vdc 50mA (typical application). low voltage side of the ...
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3answers
94 views

Can a cheap transformer be used for twice the rated voltage?

Can a step up transformer designed to step up from 110v to 220v be used to step up from 230v to 460v? (I'm thinking one of those cheap Chinese auto transformers from ebay, in the 1kva-2kva range) I ...
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1answer
72 views

Will my step-up converter module burn if I connect a power hungry device to it?

I recently bought a step-up converter module. It is rated to work at 24 volts and output MAX 28 volts and 2 amps. I will connect it to a source that outputs 5 volts and 20 amps. If I connect a power ...
1
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1answer
71 views

Power a guitar pedal (usually takes 9V power) with a single AA battery

This is not necessarily for real life application, but more for the challenge: would it be possible to power an existing guitar pedal (let's say a Roland / Boss saturation, fuzz, reverb, delay, etc.) ...
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0answers
54 views

Use step-down 1.3-35V converter together with a step-up 5-24V converter

I want to build a variable power supply. I am using a computer power supply and I want to make the 5 volt 20A output variable. I found an online website that has all the components that I need. ...
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0answers
43 views

How can I increse 12V and 0.5A DC to 200V DC?

I am very new in electrical circuits and I need help to create a circuit which would create from 12V and max 0.5A input, output with 200V and some small current. Consequently, I need to regulate this ...
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0answers
31 views

designing Step Up Converter G5177 for battery project

I need to use the typical design offered in the datasheet of the G5177c Designing Step Up Converter for a mini battery-powered project. I bought a PCB with the circuit already built, but I would like ...
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0answers
18 views

Driving an RFID device from a presumably noisy boost step-up converter

I'm building a circuit that will be powered by six AA batteries producing 9V at full charge. Part of the circuit powers an RFID device that works at 9V and probably somewhat less than that. I'd like ...
1
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1answer
188 views

How does such an USB step-up 5V-12V work? [closed]

I just bought a cheap USB 5V to 12V step up converter: Surprisingly, it works very well. There is few place for electronic components (maybe in the USB connector?), how can we do a 5V to 12V ...
0
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1answer
56 views

Step-up converter current limit 2A [closed]

In the specification for the step-up booster is max. output current limit 2 A (or any other value based on the specific booster). Does this limit apply for the whole range of supported voltage or for ...
2
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1answer
51 views

MC34063A step up voltage converter

i need change 5v to 12v that it use to supply a device; for this use MC34063A step up voltage converter; this site can calculate the parameter. i have problem all thinks is OK but i have same voltage ...
7
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1answer
291 views

How can I rectify up to 85 kV?

I've recently gotten into eletrochemistry, and I found out that if you break through \$\epsilon_{0}\$ with a high enough voltage you can ionize various gasses. I've already wound a 1:1250 EE core that ...
0
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1answer
67 views

LTC3862-2 Step Up problem, output voltage drop

I'm designing a solenoid powering and control device which is centered around the LTC3862-2 Step Up controller (see datasheet). I have taken as a design start point the typical application shown in ...
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2answers
154 views

step up from 2 AA to 3.3V [closed]

I've read some related questions, but I was not able to find/understand a proper solution I'm using 2 AA batteries to power a SAMD21 MCU (arduino mkr series), a DS18B20 probe and a MCP3424 ADC. My ...
0
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1answer
68 views

Designing a 6V --> 40V step up converter [closed]

I need to design a step up converter with the following requierements: Vin = 6V - 8.4V Vout = 35 - 40V, Iout = 2.5A Could anyone give me some insights on how to ...
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2answers
62 views

When to use step up and step down transformer

Well I once saw a video in which a guy made a spot welder using a step down transformer and in another video I saw someone make arcer using a step up transformer. Why using a step up to jump arcs and ...
2
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1answer
62 views

Boost converter: doubts on signs voltages

Please, if you could explain me why on step-up (boost) converter the sign of the t-off voltage part is positive in the following equation: Vd * tOn + (Vd - Vo) * tOff = 0 I thought that the ...
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0answers
32 views

TPS55165Q1 does not work in boost mode

I need a power supply that delivers 12v with an input between 8v and 35v. That's the reason I bought a couple of TPS55165Q1 from Texas instruments. I've made 3 different PCBs with a similar circuit. ...
2
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1answer
64 views

Step up with ideal diode

How can be perfect (ideal) diode use in 80V step up instead normal diode? I mean something like this circuit: I'm searched it on the internet and I find just something like synchronous step up, is ...
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2answers
40 views

Is output voltage of tps61041 adjustable by microprocessor

This component is a step up converter. I am confused after reading the datasheet http://www.ti.com/product/TPS61041 . It says adjustable voltage upto 28V. But i am not sure if this can be hooked to a ...
0
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1answer
146 views

3.7V to 5V step up not providing enough current

I'm trying to power up a circuit that consists of an Arduino Nano, 3x 3W stereo audio amplifiers (PAM8403), an audio player module and 20x RGB LEDs. The power source is a lithium battery 3.7V 500mAh. ...
0
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2answers
257 views

PCB GND Guard ring

In my design I am using the step-up converter TLV61046a. As this is the switching device, I would like to maximize EMI reduction. I would like to hear your advice if this GND guard ring in my layout ...
0
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1answer
36 views

Switch ON/OFF in MAX1709

I am designing a project where I'm going to use the MAX1709 step-up converter. There is a possibility to switch the converter ON/OFF with the help of ONA/ONB inputs, but according to schematic in the ...
0
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1answer
55 views

PCB design for MAX1709ESE

I am thinking of using MAX1709ESE step-up converter in my DIY project, and from the datasheet I have found that the chip is manufactured in SOIC16 case without a thermal pad (as opposed to MAX1709EUI+)...
0
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1answer
92 views

Can I use a DC-DC step-up module for a small form factor computer? [closed]

I want to design a DC power supply for my Intel NUC small form factor PC using a battery. The data-sheet for the PC: ...
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2answers
124 views

MC34064 Step-Up Regulator Design

I have a 7.4V battery supply which will gradually discharge and reduce until at about 5V I won't have enough power for my device anymore. Ideally, I need to maintain a 7V (+/- 0.5V) supply rail ...
0
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1answer
38 views

Controlling output voltage using Arduino

I want to control the temperature of a heat pad, which heats up using a power and ground pin, and is controlled by a pressure sensor. The micro controller I am using runs onl 3.3V but the desired ...
0
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1answer
78 views

Parallel LED not achieving expected current from 18650 battery pack and Boost converter

This is kinda a follow up to a previous question I asked here: Parallel 18650 battery pack voltage not stepping-up with Boost converter. Why? I have now added the correct boost converter to my 20 LED ...
0
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1answer
91 views

Particle Argon controlling 12V, using 3.7V LiPo

I am trying to control a 12V DC motor using a Particle Argon, powered by a 3.7V LiPo. To get 12V I am using this step up regulator, and to control the motor I am using this DC motor controller. I am ...
0
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1answer
114 views

Adjustable voltage source 10 – 50 V and adjustable current limiter 2 – 70 mA

I would like to build a source that gives on the output an adjustable voltage from 10 V to 50 V and that current be limited from 2 mA to 70 mA or make some circuit that let me choose 2 mA, 1 0mA, 50 ...
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0answers
55 views

Issue with powering MP3 module with Amplifier

I'm not a electronics engineer/student, so please escuse me if my query sounds a bit naieve. I have a Mp3+FM module (link) which I can power with a regular micro USB charger(or desktop USB). As the ...
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2answers
118 views

DC 12 V to 2000 V circuit

I want to design a battery operated pest trap (electrocuter). So far I have found out that the electrocuter snaps the insect at about 2000 V when it completes the circuit by landing on 2 nearby wire-...
0
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1answer
85 views

Chain lithium battery charging board and DC-DC voltage step-up

First I am sorry if it is a duplicate of https://electronics.stackexchange.com/a/151157/207677 I have this two cards: 1 A LITHIUM BATTERY CHARGING BOARD LM2577 DC-DC VOLTAGE STEP-UP (BOOST) MODULE ...
0
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0answers
300 views

Use multiple batteries in series vs Using a boost converter

I have encountered a circuit that totally confuses me: I have a simple LED flash light that came with my electric bicycle. The flash light is designed to work with a range of 24V-36V so it can be ...
1
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1answer
188 views

3.7V Li-Ion battery powered LED step-up/boost driver

Most quality COB LEDs are driven with around 35V. Are there any quality constant current step-up drivers available that allow a 3.7V Li-Ion battery to be used? Or would I have to use TI's WEBENCH ...
0
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1answer
122 views

Specifying parts for Induction Heater; how to determine current requirements at transformer? [closed]

I'm working on specifying parts for the following circuit: I intend to have a very large work coil, (like 12" diameter) so I'm expecting to need a lot of power. I'm on a tight budget, though, so ...
2
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0answers
126 views

using a step-up voltage transformer designed for 110V input with a 100V input

I relocated to Japan (where electricity is served at 100V) recently and I am looking to buy a step up voltage transformer to be able to use my TV which accepts 220-240V. While I managed to find some ...
0
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1answer
58 views

Step-up (boost) voltage regulator

I recently purchased a step-up converter, the specifications state that it can boost 5 V to 30 V with varying input voltages. The reason I purchased it was because the charger for my handheld vacuum ...
0
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1answer
223 views

Parallel 18650 battery pack voltage not stepping-up with Boost converter. Why?

I'm new here and I hope this is the right place to ask! I have assembled a 6P 18650 battery pack out using Samsung 25R cells, soldered altogether with Nickel strips, effectively giving me 3.7V 15Ah. ...
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1answer
21 views

VDC booster effect on LiFePo battery run time?

Looking for info to devise a solution for a mobile video rig. I work in the film industry and it would be VERY beneficial to run my video cart from battery power, as opposed to always having to plug ...
0
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2answers
464 views

Convert 3v to 5v very high amperage using boost converter

I am trying to build a power bank that has 3 output USB ports that can provide 2.1 amp each; it has 8 LiPo cells. So total of 2.1×3=6.3amps so basically 7 amps at 5.1v out. I have built the ...
1
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1answer
323 views

Using a 36V battery with step up converter for 48v kit

I have an e-bike motor ( bbs02 48v 750watts ) which requires a 48v battery. I also have a 36v 13ah e-bike battery. Opening the battery and changing cells connection to make it 48 takes a lot of effort....
0
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1answer
196 views

5V Step Up Converter Drops Voltage to 2.3 Volts when Connected to Device

Recently I combined two 18650 batteries in Parallel, and attached the output of the Paralleled 18650 batteries to a 5V Step UP Converter. Device draws 5V 4a. Here is a picture to the step up: ...
1
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1answer
349 views

TPS63070 Buck-boost not bucking or boosting correctly

Can some check my layout since I am using TPS63070 buck-boost regulator and I would like to get 4.7V output at TP12 but I am getting 11.5Vwhich is wrong and don't know why? Base on the Datasheet R1=...
0
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3answers
239 views

Can I use a Step-up Power Converter with Arduino instead of a Relay?

I want to make two projects that use a 12v input, a solenoid valve and a electrical lock. Both need a 12v current to work. I've seen some exemples for both projects that use a relay and an Arduino to ...
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10answers
2k views

Best approach to step down 220VAC to 160VAC?

Hey Electrical Engineers, I'm a newbie to electrical engineering (I am a software developer by trade and am starting to work with Raspberry Pis and want to learn about basic circuit design). My ...