power electronics

  1. W

    Current Limiting Parallel BMS Systems in Solar Storage Application

    Hopefully this is an easy design question to answer. I'll start with some background information. The case is with lithium iron phosphate or LFP batteries that are "48 volts" used for household photovoltaic battery backup. There are many brands and there are different lithium chemistries, but we...
  2. M

    Ruhmkorff coil design

    Here is a schematic of the circuit I built. The circuit consist of a primary coil, secondary coil, iron core, 2 lithium ion cells connected together, forming a battery, and a multimeter to measure current. I think the battery sometimes gets hot. Should i put a resistor between the battery and...
  3. R

    Need your advices on how can I estimate the voltage at the terminals the thyristor switch

    I am working on a static transfer switch which aim is to allow supplying a load with 2 different sources in order to have a redundancy when feeding the load. The head to tail assembly allow the current to flow in 2 directions (for each alternative of the input current) The working condition is...
  4. F

    Three Phase Inverter Board

    Hi, I made some Simulations of a Unified Power Quality Controller and now I have to make some test. I would like to buy some board already designed but without the control. I'm not looking for IGBT or SiC MOSFET three-phase module, but I would like something already equipped with heatsinks...
  5. Dimbel36

    IGBT Gate Driver Selection

    Hello, I'm designing a resistive load bank. Currently, I am designing the switch that will be controlled by a control signal via Arduino uno rev 3. The bidirectional switch is composed of two back-to-back igbts connected by their emitters with anti-parallel diodes. (Due to cost, there are two...
  6. Khisraw

    Controlling AC powered devices

    Hi All, As an electronics engineer, I have always worked with low voltage circuits and found it very difficult to control high voltage, AC powered devices. In my last project, I needed a power board that I can just plug my MCU or DSP and control an instrument that needs high power. I wanted an...
  7. D

    What can burn out a 3 phase motor ? Can turning it on and off be effective?

    Hello everyone ... For a project, I want to make an escalator smart with a number of PIR sensors So that the escalator turns off after one minute of not using it And for example, turn on 20 seconds later If this cycle continues, can it damage the engine? The specifications of this motor are 9 kW...
  8. 8

    Getting 5V out of the MAX1675

    Hello everybody. I designed a circuit to boost the voltage from roughly 1.5V to 5V, with the help of the MAX1675. Unfortunately it only outputs 2.2V. I have the 8 pin package and connected it as in the picture attached. The actual battery gives me a reading of 1.6V. I don't use the battery...
  9. F

    PMOS on Zeta Converter

    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...
  10. R

    Need your advices on how can I estimate the voltage at the terminals the thyristor switch

    I am working on a static transfer switch which aim is to allow supplying a load with 2 different sources in order to have a redundancy when feeding the load. The head to tail assembly allow the current to flow in 2 directions (for each alternative of the input current) The working condition is...
  11. H

    Maximum input voltage a diode can handle

    Dear Team, May I know how to find the maximum input voltage a didode can handle.I checked many datasheets no info about this. Can I apply any voltage greater than it's forward voltage. Regards HARI
  12. S

    Controlled Rectification Design Problem

    Good day, I have a design problem I need to complete. Unfortunately it has been a long while since I have done a design in that area. I need help with this design.
  13. J

    Designing a stable and self-regulated halogen light source

    Need Statement (Not a lot of experience with power electronics, apologies). I need to power a low-voltage halogen lamp (OSRAM 64328 HLX, 65W, Nominal voltage 9.8V, 6.6A) with a 230V AC source. Additionally, I need to have the capability to digitally control the powering of this lamp, which I...
  14. D

    Homework Help Power Electronics

    1) Enter your expression for the dc component of the output voltage V: 2) For the buck with input filter, enter your expression for the dc component of the L2 inductor current I2: 3)For the buck with input filter, enter your expression for the dc component of the capacitor C1 voltage VC1...
  15. emreanilterzioglu

    SMPS Vcc is not generating

    Hi guys, I am working on 12V 30A smps that has only 1V output. I haven't got board's schematic but I found one same like mine( Schematic Link). I measured high voltage capacitors (C2 and C3 on the schematic.) and bridge rectifier. They are working. Also checked power switching transistor on...
  16. tjthom

    Replacement Power Supply

    Hello! I have a small home-use electronic device and the power supply cord has been damaged and no longer properly fits into the device. (the device works; the cord is just damaged) I want to avoid contacting the company and dealing with their customer support; I'm hoping someone here can give...
  17. Mayank_2606

    Should I study Power Electronics?

    I am a second year undergraduate student from India, currently pursuing to be an Electronics and Telecommunication Engineer. I have been reading about power electronics for a while now but realized that our curriculum does not have a subject in my branch, while Instrumentation and electrical...
  18. Kadav

    Heating a petri dish for samples

    Hello i have to heat a petri dish for some appliances using arduino and temperature sensor using PID , and i would love to know which recomandations of heater and Temperature sensor you can give me Please ps: the dish is for small samples . thanks
  19. R

    Fan Regulator Feedback Generator

    Hello Everyone, I need help in to generate feedback for fan regulator to the controller. 1. AC Fan require 1 phase Ac supply (230VAC/50Hz) 2. Controller require DC voltage in range of 0 to 3V3 3. System is able to support all type regulator, there different type's...
  20. T

    where to find the R_ESR of diode in Datasheet?

    I have been searching how can I read some important inofrmation for my PLECS model regarding this diode but could not find it. here is the link. I looked on google and I find some youtuve video on how to read a datasheet of diode but did not mention the resistance. link of the diode:diode
Top