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Questions tagged [step-up]

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0
votes
1answer
35 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
votes
1answer
39 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 ...
1
vote
0answers
37 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
93 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
votes
1answer
34 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
votes
0answers
36 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
45 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
31 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
votes
0answers
54 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
votes
1answer
38 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
votes
1answer
108 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
vote
1answer
19 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
votes
2answers
237 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
votes
1answer
81 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
votes
1answer
79 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
vote
1answer
249 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
votes
3answers
67 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
votes
0answers
296 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
votes
1answer
109 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
18 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
109 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
votes
0answers
126 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
86 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
votes
0answers
53 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
54 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?
0
votes
1answer
159 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
40 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
57 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
votes
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
votes
0answers
352 views

Use step-up in 2 x 18650 cells in parallel

Is there any problem using a step-up in two 18650 cells in parallel to increase the output to 12v?, both are 4v 2200 mAh, from the same laptop battery pack. The step-up will be connected to the ...
0
votes
1answer
61 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
votes
0answers
94 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
votes
1answer
131 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
98 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
vote
1answer
323 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 ...