dc-dc

Hi, I'm designing LED driver in my pulse oximeter. It would be two LED's, I would like to auto adjust current by DAC and be able to turn off one LED at time. I came up with an idea. In simulation, I got what I wanted. What about real circuit? The mosfet is actaully IRLML6244TR. 5V is for. ex...

Hi, I'm studying the Zeta Converter topology for Photovoltaic Applications. In every documents, it is specified that the switch is PMOS. I don't understand why a PMOS is needed. Which are its advantages? Being a switch, is it possible to use an NMOS instead of PMOS? Obviously, an isolated...

I am making a step up DC-DC converter using a full bridge configuration and bridge rectifier output, using high speed rectifier diodes. I see that in many designs on the net, they use an additional inductor on the output side between the rectifying diodes and smoothing capacitor. I have tried...

I am working on some artwork that will have about 600 LEDs on it which each can consume about 30mA. (18A @ 5V). I am looking for a power supply solution to power all of these LEDs. My thought is to use a 24V or 36V power supply and buck that down to 5V for each strand of 100 LEDs (~3A @ 5V)...

Hey, I have a question regarding a schematic I made, which doesn't work. Maybe someone could help me out. I tried to make a board which would take a 1.5V Battery and turn it into 5V. I used this IC: https://www.mouser.de/datasheet/2/256/MAX8815A-1516131.pdf I oriented myself with the schematic...

I have been studying the use of snubber circuits within flyback converters and other hard-switched converters, and doing some simulations to see the results. I have came across one type of snubber called a passive snubber circuit, which uses no resistor and instead some additional passive...

Hi! Is it possible to make a a non inverting DC-DC converter that makes a fix 4V from a Li-ion battery's voltage. I need about 1,5A. The input voltage starts from 4,2V and decreasing to 2,8V as the battery discharging.

I have a media cabinet which houses a bunch of media players/routers/alarm system etc. The target output voltages for each component is between 9V and 24V. This is currently powered by an LED power supply with a few step down buck converters to the target voltages. The LED power supply is very...