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To find the linearly independent columns perform row echelon operation and look for the pivots.The pivot columns corresponds to linearly independent columns.The number of non-pivot columns indicates the dimension of null space.For deeper understanding i would suggest books by Gilbert strang and...
Hi all....
I have designed a SPWM based inverter.I have attached the schematic of DC-AC section alone.
Can somebody please tell me whether the design is correct and also point out the mistakes i have done.
please tell me how to design the output filter(PWM frequency= 31.250k).
How can i view the...
Thank u Kurenai_ryu....
I want to use CAPT interrupt specifically because you get an interrupt at the TOP,whereas you will get interrupt only at the bottom if you use OVERFLOW interrupt.So the OCR1A and OCR1B registers gets updated at the bottom (i.e after downcounting match,gets updated before...
Hi all!!!
I know that ICR1 register can be used to store the TOP value in generating PWM in avr's 16-bit timers.
But when i tried to debug the following program,the ISR interrupt function is never entered.My doubts are
1)can ICR1 be really used to store TOP value?
2)is the 16-bit write access...
Hi all!!!
I am trying to generate SPWM signal for the inverter using Atmega8.
The following are the parameters i have fixed.
PWM carrier frequency=31.25k(8M/(1*256)---->No prescalar and fast PWM.
Aim is to get 50Hz sine output.
I have used two different sine wave tables for simulation
1)I have...
How to calculate the value of the resistor and capacitor in the snubber and also the inductor at the output of the rectifier?
is it ok to use the same BJT (BD139,BD140) in the link that you provided?
Thank you Tahmid..
I have a 12V 135Ah battery with me,thats why i am continuously insisting on 12V.Though i design a 1000W inverter i may use it to provide a max of just 600W.And my aim is to design an inverter with the available battery.
1)I have attached two photos of the circuit designed...
Thank u Tahmid...
so i should use 10 IRF3205 for the DC-DC section.
1)How about the DC-AC section can i use IRF3205(10 nos) again?its Vds is only 55v ,but the dc supply is 320V.can it withstand?
2)Is it possible to reduce the number of MOS by replacing IRF3205 with any other MOS type?
3)What...
Thank u Tahmid...
1)i have ordered for EE55 core center-tapped(50khz).So can i use IRF3205 with Vds=55V,Id=110A,rds=8 mohms(2 in the upper leg and 2 at the bottom) in push-pull configuration in Dc-Dc section and similarly IRF740 with Vds=400V,Id=10A,rds<0.55 ohm for 320VDC-220VAC section?
If i...
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