I made a device where I am using Texas Instruments LM2700 boost converter (2.7-4.2V to fixed 5V output, or in other words 18650 battery to 5V.) I have already made the PCB (according to the datasheet example) and assembled all the components. However, I face a really strange output...
I'm pretty newbie. i designed a boost converter as hobby and need some help about that. not sure if it will work. how can i fix or improve the circuit. i aimed 5 Vin and 15V 10A max out and use 555 for generate pwm signal for mosfets. But i know 555 can generate max %50 duty cycle and it means i...
I have an inverting boost converter which is giving me some difficulty. It can be found on pages 1 and 3 of the PDF attached (the non inverting works fine). This inverting boost converter should (and has in prototype) produced -100V - 0V without any difficulty.
All control signals are...
I am using TPS61253 Boost IC to boost 3.8V from 375mAH Li-Ion battery to operate a load of 2A and also charge the backup Li-Ion battery of 115mAH using BQ25895 chip. Looks like battery is not able to deliver the necessary current and the load circuit does not boot up correctly. Is...
Hi everyone, I build a boost circuit using MC34063 as control IC,
The schematic I build is like this,
The datasheet can be found here: MC34063 datasheet
At first, I want to build a boost converter to drive the nixie tube clock I made, so I measure the current consumption of the project is about...
I apologize in advance for any grammatical errors.
I'm working on a crowdfunding project that includes a small 5V motor (drawing 2A max) that needs to be powered by a rechargeable batterie via USB.
Now I'm more into mechanic and such thing must be designed by an well trained...
HI all, I want to understand the proper way to make a dimming function for the XL6005.
I found some schemes that suggest using the EN Pin:
And some that use the FB Pin:
So which one should do the work and what PWM signal should I use?
I'm sure I'm missing something very fundamental here, but I've built a boost circuit on a breadboard (see attached schematic) to convert 5v to 12v using an LM2577-adj. I want to power a 12v PC fan (rate at 12v at .06A) as the load.
The LM2577 seems to work fine, as I'm measuring 12v.
Hi all, a driver circuit needed for lighting a 30W LED* (one color) -
I had a look at the XL6005 datasheet and wanted to make sure I understand it properly based on the following diagram**:
1. To drive the LED with 300mA I should make RS = 0.73 ohm (ILed=0.22/0.73=0.3A)
2. To limit the max...
I have a doubt.
In the diagram above, the boost converter is used to power a GSM module that operates in 3.6V.
TPS610995DRVT has a fixed output of 3.6V and VBAT is a primary battery of 3.6V and can be enabled whenever required.
The purpose of the boost converter is that the GSM...
I'm designing a circuit that I want to control via Bluetooth, over an iPhone or Android. This is my first schematic and PCB design and I'm looking for some help. I use EasyEDA for my capture and PCB layout. I attached my schematic as a PDF and I will post a link to my EasyEDA...