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Questions tagged [step-up]

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0
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0answers
22 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
votes
1answer
44 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 ...
1
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2answers
33 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
91 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
90 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
34 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
53 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
82 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: ...
1
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2answers
56 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
32 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
68 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
votes
1answer
58 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
67 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
51 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 ...
-1
votes
2answers
112 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
52 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
146 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
vote
1answer
133 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
votes
1answer
79 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
96 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
51 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
176 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. ...
1
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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
350 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 ...
0
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1answer
169 views

Use 36v battery with step up converter for 48v kit

I have an e-bike motor ( bbs02 48v 750watts ) which requires 48v battery. I also have a 36v 13ah ebike battery. Opening the battery and changing cells connection to make it 48 would take lots of ...
0
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1answer
123 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
289 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
122 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 ...
5
votes
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 ...
0
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0answers
443 views

MOSFET for PSU switching

I want to make a Bench power supply unit based on: For initial AC to DC conversion - ATX PSU (Enermax EG365AX-VE 350W) capable of providing 12V 26A Internally Step up module for powering the below - ...
0
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1answer
174 views

Step-up converter with Vin, Vout, GND

I want to use pololu step-up converter https://www.pololu.com/product/2836 in order to power a 5V device with two Ni-Mh batteries (1.3V each). It has only Vin, Vout and GND connectors. I've checked ...
0
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0answers
21 views

Dedicated li-ion step up drivers

I have a design which will include the optional use case of boosting up to 7V from a li-ion battery. I can't seem to find any drivers dedicated to li-ion for this? There seem to be a few buck boost ...
0
votes
1answer
237 views

geiger tube dc power supply

I have one of these HV dc converters and I was wondering if I can use it to supply a small Russian SMB21 Geiger muller tube. What other parts would I need to add not to fry the GM tube? Keep in mind I ...
0
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0answers
303 views

Step up transformer protection

simulate this circuit – Schematic created using CircuitLab Hello, i have question regarding the short circuit current at both primary and secondary side of the XFMR2. Given the values in the ...
1
vote
1answer
109 views

Boost Converter Inefficiency

I in my design I have boost converter (using PAM2423) which is powered by LiFePO4 (3.2V) cell. It works and gives accurate output but it is very inefficient. I checked voltage on the coil and I think ...
0
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0answers
55 views

How to power a 12V 0.05A computer fan? [duplicate]

I have a Noctua NF-F12 computer fan (specs: https://noctua.at/en/nf-f12-pwm/specification). I also have a Samsung USB Wall Adapter (Originally for charging my tablet). The USB Wall Adapter says it can ...
0
votes
1answer
81 views

Can I use dc-to-dc converter to step up voltage of 20 3.7V 3Ah lithium-ion batteries connected in parallel?

I want to use this 3.7V 40Ah powerbank to power my e bike's 48V hub motor. So would it be a bad idea to step up 3.7V all the way up to 48V? Would there be a huge Ah loss?
1
vote
1answer
372 views

Creating a Li-on backup for a 12v router

I am building a small battery backup for my router with the 12V 0.5A DC input. Main use is to keep the router powered up during load shedding (aka. power cuts / blackouts ) while my backup generator ...
0
votes
1answer
52 views

Do I need to restrict current to charge a dyson Li-ion battery directly with my photovoltaic system

I would like to charge my Li-ion battery from Dyson V6 vacuum cleaner with my solar system/controller (12V output voltage) with a step up converter 26.1V/3A. I already charge my apple computers and ...
0
votes
2answers
63 views

Can I swap capacitor Ratings

I have found this tutorial but don't have a 0.1uF Capacitor. I am an amateur when it comes to electronics, but I don't know if I can swap 0.1uF for a 1uf or 1.5uf. Any help would be greatly ...
14
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3answers
1k views

LM2586 - Inductor Heats Then Burns

I'm designing a step-up constant current source to drive LED strips (nominal load voltage is about 54 VDC). Requirements: Vin: 18..32 VDC Iout = 0.2 A Vout = 54 VDC (nominal) - 57 VDC (maximum) ...
0
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1answer
66 views

3Phase + Neutral, 208VAC distribution and conversion to 1Phase 120VAC

Question 1: How to convert 3phase+Neutral 208VAC supply to 1phase 120VAC? Can I tap off one (any) leg of the 3phase supply and use that to Neutral to get the 120VAC? Or do I have to use all three ...
0
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0answers
129 views

How can I calculate the input capacitance required for a push-pull step up converter?

How can I calculate the input capacitance required for a push-pull step up converter? Vin - 12V (dc source) Accepted Vin ripple = 100mV Duty Cycle = 50% Switching frequency = 300kHz Vout = +12V and -...
0
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1answer
194 views

Is it possible to drive a 12V DC motor with XL6009?

I am a beginner in robotics. I am planning to drive a 12V DC motor from Raspberry Pi 2 B . I know Pi does not have that capacity to drive such a device , so I am using L293D motor driver to control ...
2
votes
1answer
105 views

Questions for a personal LED/ATmega328P-PU project

Ok, so first of all, here's I'm wanting to use in this project x14 5mm Red LEDs x14 Resistors (1 per LED due to individual control - how many ohms each? I don't quite understand Ohms law) x1 Battery ...
1
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1answer
407 views

Constant Current Driver with a Step-Up Regulator IC

First of all, although I couldn't find any similar question(s), excuse me if one has been asked before. I want to make an LED driver for 2 different LED strips. One needs about 45 VDC and the other ...