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16F676 BASED 90-290 VAC 5 STEP AUTOMATIC DIGITAL STABLIZER

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So the difference is only 3 hours... here 12:00 and a few minutes...

By the way, what is the power requested in general in your local market... Here it was ... 4KW, 6KW and 9KW that is @150V 27A, 40A and 60A respectively
 

Tahmid said:
Here the most popular are 800W and 1-1.5kW.
Click to expand...

I see... it will likely be used for the refrigerators... I remember we added this small power to complete the series.

Added:
By the way, I didn't sleep yesterday :smile: meanwhile I designed a new controller just in case there will be a demand again by the local consumers. I will use AT89C2051.
I mean I designed its main ideas and the hardware schematic (actually I simulated its zero-cross detector and its voltage reader ... next step is the assembly code.
Since the power (and current) is rather high I restrict the range from 145 to 240V and to be able to compete similar products around here, the output range is made wide like 200/205 to 234/240 :grin:

Added:
Do you have a question?
Ok. Have a nice day... time to sleep I guess.
 
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any bodies know about "Differential power mode IGBT PWM static voltage stabilizer"????
i think it will be rather more interesting.
 

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  • Def PWM Stab.pdf
    363.2 KB · Views: 739

amjadali56 said:
any bodies know about "Differential power mode IGBT PWM static voltage stabilizer"????
i think it will be rather more interesting.
Click to expand...

It is indeed very interesting if one can get/buy rather easily any component he finds good for the job and at a reasonable price.
The easiest step in a project is its design I guess :wink:

For instance, are you selling such type? Or the PDF is meant as a technical reference of a switching topology.
 
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it's just an idea and some googling. i thought of rather "we all will give a try with designing". the pdf is just a technical reference.
 

amjadali56 said:
it's just an idea and some googling. i thought of rather "we all will give a try with designing". the pdf is just a technical reference.
Click to expand...

I see... and you did well... it is a reference for a novel and interesting idea.
The problem is in the marketing.

For example, most ordinary consumers don't have the knowledge to distinguish between different types. One uses to ask:

What is its input range?
If our answer is 180 to 260V... we will hear him saying: Too bad, I heard of a better one with a range between 145V to 260V.

What is its power and price?
If our answer is 10 KVA for $180... we will likely hear: Oh... I heard that 10KVA price for a wider input is $150 at most.

Naturally we will clarify that the ouput varies only betwwen 217.5 to 222.5 only. I won't be surprised that the answer would be: What I understand is that my appliances run fine so it doesn't matter if the output regulation is +/- 1% or +/- 10%, why paying more for something not too important.
Also, talking about efficiency will end up to the same remark since its effects cannot be observed easily and in a short time.

In a previous post, I pointed out that when I built (long ago) a stabilizer using triacs (to get better regulation and long life) I couldn't sell more than a few units of it (in fact I designed it mainly for my house). But when I produced the cheaper model (using relays), its sales helped me buy the first car just after a few months! The irony is that I spent more than 6 months in the design and test of the triac model while it took me just one week for the relay type. :grin:
 

sahu said:
If u desine 16f676 it is full fel also my reqerment. If posibol pl do it.
Click to expand...

I am very sorry that I couldn't be interested in PIC uC because I can't get any support from Microchip (because of sanction) so I work with Atmel uC instead.
I finished today the schematic drawing of a controller using the 20-pinl uC from Atmel (AT89C2051). Perhaps it helps in something.

Note: ALreg3_01.pdf (50.7 KB) was updated to ALreg3_01.pdf (50.5 KB)
 

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  • ALreg3_01.pdf
    50.5 KB · Views: 381
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KerimF said:
I see... and you did well... it is a reference for a novel and interesting idea.
The problem is in the marketing.

For example, most ordinary consumers don't have the knowledge to distinguish between different types. One uses to ask:

What is its input range?
If our answer is 180 to 260V... we will hear him saying: Too bad, I heard of a better one with a range between 145V to 260V.

What is its power and price?
If our answer is 10 KVA for $180... we will likely hear: Oh... I heard that 10KVA price for a wider input is $150 at most.

Naturally we will clarify that the ouput varies only betwwen 217.5 to 222.5 only. I won't be surprised that the answer would be: What I understand is that my appliances run fine so it doesn't matter if the output regulation is +/- 1% or +/- 10%, why paying more for something not too important.
Also, talking about efficiency will end up to the same remark since its effects cannot be observed easily and in a short time.

In a previous post, I pointed out that when I built (long ago) a stabilizer using triacs (to get better regulation and long life) I couldn't sell more than a few units of it (in fact I designed it mainly for my house). But when I produced the cheaper model (using relays), its sales helped me buy the first car just after a few months! The irony is that I spent more than 6 months in the design and test of the triac model while it took me just one week for the relay type. :grin:
Click to expand...

actually i seen such, with 80v to 280v and regulated 220v output and rather low cost then ordinary 10KVA but the guy won't let me hand on his schematic. That's the reason i googled it and then brought it to the forum. it is feasible and worth a try.
 

Take a look at this:

Hope this helps.

---------- Post added at 22:47 ---------- Previous post was at 22:46 ----------

This as well:
 

it is very nice , but cont under stand its AC to AC regulation ,can u explain hear ?
 

amjadali56 said:
actually i seen such, with 80v to 280v and regulated 220v output and rather low cost then ordinary 10KVA but the guy won't let me hand on his schematic. That's the reason i googled it and then brought it to the forum. it is feasible and worth a try.
Click to expand...

I believe you are right. For many engineers who live in a free market in which all components and EDA tools are avaibale, this design is very interesting to think of.
In my case I am glad that I am still able finding some components to work with and compete some available products in our local market :wink:
You agree with me that it is silly to design a board you can't get even one component on it.
On the other hand, every new topology needs preliminary tests before starting the final design and knowing a schematic is useless if one cannot write its software (which depends on all details of the hardware).

Kerim

---------- Post added at 21:11 ---------- Previous post was at 20:58 ----------
Tahmid said:
Take a look at this:
This as well:
Click to expand...

Since I don't live in Bangladesh, I can't see the videos :grin:
Thank you anyway.

Kerim
 
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it is very nice , but cont under stand its AC to AC regulation ,can u explain hear ?
Click to expand...

maybe this can help?
 

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  • XR-EE-EME_2009_010.pdf
    1 MB · Views: 514
  • Def PWM Stab[1].pdf
    362.5 KB · Views: 367
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    KerimF

    KerimF

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Thank you... tipu

At least, I was able to watch the first one.
 
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so then whats going to be? any thing cooking Thamid???? when to start ????????
 

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