All Questions
Tagged with step-up dc-dc-converter
36
questions
4
votes
1
answer
278
views
Zener instead of resistor divider on dc-dc converter feedback pin
This dc-dc converter steps up voltage from 3.1V to 7.5V. I'm curious about the unusual D2 zener + R3 resistor to set the output voltage, instead of the traditional resistor based voltage divider. I ...
- 89
0
votes
1
answer
35
views
Creating higher voltage from DC motor
I have a DC motor (5 V, 600 rpm). I use it as a generator. It produces near 1.5 V max.
This voltage may differ while using it in the application and I can't control it. I want to raise this voltage to ...
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
0
answers
86
views
Why does the step up boost module say its for 3.7V but has an input of 4.5V
I want to use this Step Up Converter (Boost Module), (https://www.amazon.com/gp/product/B0B7JGJ67J/), to power a 12V .15A blower fan using a 3.7V 2500 mAh battery. The step converter says that it is ...
- 1
1
vote
1
answer
387
views
Converting 0-3.3 V to 0-12 V
My Teensy 3.6 microcontroller outputs an analog 0 V - 3.3 V signal.
I plan to use my Teensy's PWM pin to control the speed of a fan that has 12 V as its 100%.
I wish to convert the 0 - 3.3V --> 0 - ...
- 61
0
votes
0
answers
67
views
How can I increase the output parameter of a boost converter based on tthe MC34063?
I would like to get 16.5V and 160mA output using an MC34063 IC. The circuit is designed on Multisim shown as a picture below. It provides the desired output.
In practice, this circuit has set as ...
- 21
3
votes
3
answers
478
views
MC34063 step-up unstable operation
I am building a 3.3V -> 15V/100mA boost converter using MC34063. I have used formulas in the datasheet to calculate values of components. Then I spotted some oscillations in Vout and instability of ...
- 85
1
vote
1
answer
80
views
LMR64010 using externaly adjustable feedback voltage
I am using a basic application circuit for LMR64010. The output voltage is adjustable by changing resistor R2 (R1 is a fixed value of 13.3 kΩ).
I would like to know how to modify this basic circuit to ...
- 65
0
votes
2
answers
100
views
Step-up converter from 3.7 V to 12 V unable to supply the load
I'm working on a project where I want to supply a magnetic valve powered by two parallel connected Li-ion batteries. Each battery has a voltage of 3.7 V (max. 4.2 V) with a capacity of 3.5 A (in total ...
0
votes
1
answer
36
views
Where does the Step-Down Convertor used as compare to RECOM DC/DC converter?
I am reading Step-Down converter and given the circuit below, which is a step down converter. It consists of a MOSFET, inductor, diode, capacitor
And if I compare it with RECOM component DC/DC ...
- 103
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
-1
votes
3
answers
602
views
Why is the output on my high voltage generator producing more amps than I would expect
I recently bought a high voltage generator of off amazon that apparantly steps up 3-6 volts to 400kV. I wanted to know how much amperage the output woud produce out off curiousity and measured it to ...
-2
votes
2
answers
1k
views
Why the output voltage of no-load boost converter is increase continuously?
I'm designing the boost converter with 3 mH inductor and 680 uF capacitor 20 kHz fequency. When I try with 12 V, 5 A power supply in the input and fixed 50% duty cycle, I can reach the 24 V output ...
1
vote
0
answers
99
views
Unwanted switching noise on the output of the MCP16417 (DC-DC, step-up converter)
I want to use the MCP16417 step-up DC-DC converter for a low power battery powered project. Before implementing the design on a PCB I wanted to try the chip and built the circuit (top circuit on page ...
2
votes
4
answers
336
views
Is it possible to step up dc without changing it to ac or pulsed dc? [closed]
I've been looking at dc to dc step up converters/voltage multipliers, and they all seem to make it ac or pulsed dc and reconvert it to dc at the end. Is there a way to step it up directly? A clock ...
- 47