power electronics

  1. L

    Determine Instant Time on IGBT

    Hello everyone, i found an appilcatin note to appyling IGBTs and there are Formulas to calculate turn-on/off switching Energy on IGBTs my question is, how can i determine t1,t2,t3 and t4? Thanks
  2. ashokraj

    what is the difference between these two supplies

    I am wondering how will these two differ, One is Ac to DC converter module, second one is SMPS. Link1(AC to DC module) Link2(SMPS) when link 1 is available in a small size than Link2(SMPS). Under what circumstance we have to use Link1 and link2. I understand that SMPS is 5watt, Link1/Module...
  3. ashokraj

    Is it better to specialize in one area( Hardware or software) or is it better to learn about everything(power electronics, Digital electronics, Analog

    Hi, In my first job I have worked as an Embedded systems engineer (with major focus on software) for 1.5 years. I am currently working as a hardware engineer for 2 years. Considering the long term success, is it better to specializing in one area( Specifically analog electronics or...
  4. F

    Best DC-DC Converter Topology

    Hi, I'm looking for a DC-DC converter topology with the following characteristics: Input Voltage Range 2.7-5V Output Voltage: 12V Output Power: 1kW It is not of primary importance the isolation. Do you have any suggestions about the most suitable DC-DC converter topology (high power and high...
  5. Chandler Timm Doloriel

    How to convert ADC reading to analog current value in LTC6106

    I couldn't convert the ADC reading to its respective analog current value. I connected a microcontroller in the Vout to read the current, it will give an 8bit HEX value. The load is another microcontroller. The ADC reading in no-load is HEX00. (8-bit @ 3.3V) and LTC6106 for current sensing...
  6. P

    draw the dc output voltage in a graetz circuit

    Draw the dc output voltage and voltage across T3 in a Graetz Circuit when firing angle is 45 degree and u=30 degree.
  7. amir97

    DC-DC Boost Converter Switching Frequency

    hi guys, currently i'm want to design a dc-dc boost converter but i don't know what is the best frequency value that i need to use in this converter. can someone advise how to find the best pwm switching frequency? i need a justification why i supposed to use that frequency value on my design.
  8. ashokraj

    which type of dc to dc converter to use to convert 5V, 80mA input to 3V 300mA output?

    Hi, I am working on a solar panel whose output maximum specifications are 6V, 100mA ( nearly 0.6watt). Practically these values came to 5v, 80mA when tested in afternoon sun. I want to run a motor whose operating voltage is (3~12V), no load current is 180mA. I would like to know...
  9. 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...
  10. 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...
  11. 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...
  12. 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...
  13. 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...
  14. 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...
  15. 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...
  16. 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...
  17. 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...
  18. 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...
  19. 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
  20. 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.
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