All Questions
Tagged with step-up voltage-regulator
15
questions
1
vote
2
answers
138
views
Converting a fast-switching 0-2.5V input to TTL signal
Dear fellow engineers,
I am attemping to convert a fast switching (~ns) 0V - 2.5V pulse from FPGA into a TTL-standard (0V - 5V) signal. I have been browsing for voltage regulators online. Most of them ...
- 11
2
votes
2
answers
487
views
Step Up Circuit does not work
I am using an IC as a step-Up converter in my PCB.
It is supposedly to increase voltage from 12V to 30V.
This is the chip that i used.
https://datasheet.lcsc.com/lcsc/1809251831_Diodes-Incorporated-...
- 1,369
0
votes
1
answer
97
views
Calculation of step-up / step-down output voltage
I am trying to build a step-up and step-down circuit from a DC-DC converter IC.
This is from the datasheet:
I have two questions in relation to this:
The value of the resistor in the red box. It ...
- 1,369
0
votes
1
answer
79
views
What does the output current depend on in the booster circuit?
What methods are there to increase the output current of the booster circuit?
I got the figure below from a TI LMR62014 step-up voltage regulator datasheet.
Assume Vin = 4 V and Vout = 8 V
In this ...
- 673
1
vote
1
answer
72
views
9 V to 12 V step-up converter to drive load between 10-100 mA, and no load
I'm working on stepping up the voltage from a 9 V, 150 mA power supply to 12 V, with a load of 10-100 mA and moments where there's no load.
I have implemented something similar with this IC ...
- 185
1
vote
1
answer
226
views
What's the simplest way to produce 150VDC for activating my piezo stack?
I recently bought a piezo stack for research purposes. To activate the piezo stack and get the maximum stroke I have to supply 150VDC.
I want to use the piezo stack in two states only: 0V and 150VDC.
...
- 23
0
votes
1
answer
252
views
Step up converter with MC34063
I have a 24v humidifier that I would like to power using a 12v power supply, so in order to do that, I designed a voltage step up regulator based on the MC34063. But since the humidifier requires a ...
0
votes
1
answer
329
views
Can MCP16251/2 DC-DC step-up converter tolerate higher input voltage than the set output voltage?
I am trying to figure out the best possible circuit for MCP16251/2 feeding from 2 AA batteries in series with an output of 3.3v. MCP is extremely efficient boost converter with very low quiescent ...
- 73
1
vote
2
answers
431
views
Nominal Voltage with 18650 cells and DC-DC step up board
So I'm building a simple 12v router UPS and I have trouble with one concept - Nominal Voltage. So the build is very simple, some common 18650 cells, DC-DC voltage step up board, and a BMS (battery ...
- 127
0
votes
2
answers
1k
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 ...
- 84
0
votes
1
answer
266
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 ...
2
votes
0
answers
236
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 ...
- 121
0
votes
1
answer
125
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 ...
2
votes
1
answer
651
views
TPS63070 buck-boost not bucking or boosting correctly
Can someone check my layout? I am using TPS63070 buck-boost regulator and I would like to get 4.7 V output at TP12 but, I am getting 11.5 V which is wrong and I don't know why.
Base on the Datasheet ...
- 49
2
votes
1
answer
146
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 ...
- 21