Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hi;
I'm trying to control a BLDC motor using the attached circuit. However, MOSFETS burn when I apply full reverse voltage to brake the motor.
The bus voltage is 48V. The inductance of the motor is 0.06mH.
Can you help me figure out what's the problem? Does it have anything to do with TVS...
I can tell you that mean squared error is used more widely than absolute error in signal processing community.
Besides that, the first thing which comes to my mind is that, first you can compute the mean squared sum of the sinusoid, second you find the mean squared error sum of the two signal...
Re: TLP250 OR BOOTSTRAP IC (IR2110 etc.) for MOSFET GATE DRI
Hello everybody;
First of all, thanks for your replies.
My first question is stupid actually. When I look at it now, I say what a shame :)
My designated driver is attached to this post.
I want to ask some question which are not...
Hello everybody;
I am designing a BLDC motor driver.
As I know there are various set-ups for mosfet gate driving, but I am familiar with two methods:
1. Using Optocoupler such as TLP 250:
2. Using Bootstrap ICs such as IR2110
My application requires high side gate driving naturally. I am a...
function [fnc2]=fnc2(M)
global fnc2;
global T;
global Jg;
fnc2=M*T/Jg;
end
This is a simple example. fnc2 output M input
Global adjective means variables are stored in workspace. If your output or input ports are vector, there is no need for change the syntax in first line.
For different...
Why dont you use MATLAB function?
It is more closer to matlab syntax
Faster than embedded
Reliable for computing
And you can define its variables in workspace using global type variables
I want to simulate some controller and estimation algorithms for a real plant. However i get different results depending on that plant block ,which i put in simulink, is in continous form or discrete form.
When i put a continous system block, i connect zero order hold block at input and output...
There is one thing that i have forgetten to say.
Current flowing on the circuit has increased seriously. I think it is a problem which stems from cross conduction during pwm transitions. If i put a diode across High side Mosfet's source and Low Side Mosfet's Drain as it prevents cross...
bldc problem
I connected 100 nF capacitors between phases and ground. As a result speed has decreased to 5600 for %25 duty. However, i increase capacitor value by adding another 220 nF polyhester capacitor which is parallel to the 100 nF one but nothing changed.
Is it a way taken for the...
24v bldc
BTW, alex i examined your topic and you are saying that your bus voltage increases to 160 V but i have no such problem. My bus voltage is constant at 24 V. could it still be a bus voltage capacitor problem?
how to fix bldc motor
Firstly, thanks you guys for your replies.
However, I do not understand what FVM said. What do you mean by "alternating waveform". What i am doing is that i apply PWM only to highside MOSFETs whereas logic 1 is applied to lowside ones with respoect to info coming from...
hand brashless
Hi again;
My DC Bus Voltage is 24 V (24 V Bldc Motor as well). I use the same configuration in IR2110's datasheet. I am using FPGA for commutation. It checks hall sensors and provide commutation signals which are going into ir2110 at 50 khz and my PWM freq. is 20 kHz...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
