audioguru2
- Apr 6, 2004
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Hi Sasi,
Excellent! ;D
How many kW can your inverter supply continuously? ???
Excellent! ;D
How many kW can your inverter supply continuously? ???
Inverter Circuit 12V DC to 230VAC Sine Wave
- Thread starter harrychoo
- Start date
audioguru2
- Apr 6, 2004
- 12,026
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Wow!Sasi said:
Would you like to design and build an efficient pure-sinewave inverter with voltage regulation and a ground-fault-interrupter, using PWM? ???
Hello Forum!
Good to Find some straight answers, its time for a
View attachment 37688
View attachment 37689
Good to Find some straight answers, its time for a
View attachment 37688
View attachment 37689
Phase Controlled Charger Circuit
Features:
Constant Current & Constant Voltage charging,Precise Cutoffs & Trickle Chraging
We Sell this circuit as a Seperate charger for People Who want Battery Chargers/self Start Generators
As For Sasi's over heating of 0-180 Coil we use a 10 Ohm, 40 Watt Resistor in series with the 180 Tapping.
People who have used this charger said that it was Better than an SMPS Charger .
People in country like ours (Rural Population)cannot afford a very expensive inverter which needs high Bill Of Material (Inverter trafo + Charger Trafo + Mosfets+3055 transistors+Relays etc). ???
the inverters based on this kind of charging are alive since 6 years to tell their success story. ;D
i have to take these Pics because the Publisher and the Editors have Painstakingly decoded the Inverter & UPS PCBs available in the market for training the Students & hobbyists . They deserve their own credits.
arunView attachment 37694
View attachment 37695
Features:
Constant Current & Constant Voltage charging,Precise Cutoffs & Trickle Chraging
We Sell this circuit as a Seperate charger for People Who want Battery Chargers/self Start Generators
As For Sasi's over heating of 0-180 Coil we use a 10 Ohm, 40 Watt Resistor in series with the 180 Tapping.
People who have used this charger said that it was Better than an SMPS Charger .
People in country like ours (Rural Population)cannot afford a very expensive inverter which needs high Bill Of Material (Inverter trafo + Charger Trafo + Mosfets+3055 transistors+Relays etc). ???
the inverters based on this kind of charging are alive since 6 years to tell their success story. ;D
i have to take these Pics because the Publisher and the Editors have Painstakingly decoded the Inverter & UPS PCBs available in the market for training the Students & hobbyists . They deserve their own credits.
arun
View attachment 37694View attachment 37695
audioguru2
- Apr 6, 2004
- 12,026
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Nura,
It looks like Sasi perfected the original inverter circuit.
It had a common-emitter transistor in the output of the IC driving another common-emitter transistor driving a complementary pair of emitter-followers, while Sasi replaced them all with simply an emitter-follower and used the transistor in the output of the IC also as an emitter-follower.
Sasi's circuit does the same job with far fewer transistors for each side and turns-off the Mosfets quicker too. It also might even turn-on the Mosfets quicker. His quicker switching results in less power and heat wasted.
There are many ways to skin a cat and cats look similar at 1st glance.
It looks like Sasi perfected the original inverter circuit.
It had a common-emitter transistor in the output of the IC driving another common-emitter transistor driving a complementary pair of emitter-followers, while Sasi replaced them all with simply an emitter-follower and used the transistor in the output of the IC also as an emitter-follower.
Sasi's circuit does the same job with far fewer transistors for each side and turns-off the Mosfets quicker too. It also might even turn-on the Mosfets quicker. His quicker switching results in less power and heat wasted.
There are many ways to skin a cat and cats look similar at 1st glance.
Nura,
Would it be possible for you to scan the book into a pdf file or word document to share with the group? Or is this a copyrighted document? In this case, what is the ISBN number so that others can look for this book?
Also, I wanted to mention that there are perhaps thousands of variations of inverter circuits. So, we should try to keep from arguments such as who invented an inverter design or who improved one.
MP
Would it be possible for you to scan the book into a pdf file or word document to share with the group? Or is this a copyrighted document? In this case, what is the ISBN number so that others can look for this book?
Also, I wanted to mention that there are perhaps thousands of variations of inverter circuits. So, we should try to keep from arguments such as who invented an inverter design or who improved one.
MP
Dear Forum
iam not crossing my sword with Sasi, these Pics have been Posted from the Book "Advance Inverter & Ups Circuits-vol2" the Publisher & Author is Mr. G.T Gupta.
Its Very Painful when somebody claims the ownership of your work, we all refer to some books or Manual, it would be great if we just mentioned "this is from XYZ book" authored by Mr.Xyz.
Atleast we know that we have done the right thing and can have peaceful sleep at night.
Sasi's Cutoff Circuits are his Own Piece of work which i appreciate
Audioguru, i couldn't find the ISBN number, iam not too sure if i can Scan the Entire Manual and Post it here in the Forum, i maybe prosecuted, if i don't obtain Permission of the Publisher.
the Cost of the Book is Rs.70 ($ 1.60) if anybody is interested in buying the Manual, i surely will help
arun
iam not crossing my sword with Sasi, these Pics have been Posted from the Book "Advance Inverter & Ups Circuits-vol2" the Publisher & Author is Mr. G.T Gupta.
Its Very Painful when somebody claims the ownership of your work, we all refer to some books or Manual, it would be great if we just mentioned "this is from XYZ book" authored by Mr.Xyz.
Atleast we know that we have done the right thing and can have peaceful sleep at night.
Sasi's Cutoff Circuits are his Own Piece of work which i appreciate
Audioguru, i couldn't find the ISBN number, iam not too sure if i can Scan the Entire Manual and Post it here in the Forum, i maybe prosecuted, if i don't obtain Permission of the Publisher.
the Cost of the Book is Rs.70 ($ 1.60) if anybody is interested in buying the Manual, i surely will help
arun
What a strange.....
according to me, the book nura is specifying is a perfect of another book published by BPB in India.
ISBN 81-7656-835-X. The book published in 2003. (Photo attached)
I joined in the discussion only because of by seeing the similarity and colour of the scanned image of printed book by nura.
Nura,
try to get the ISBN.
View attachment 37712
View attachment 37713
according to me, the book nura is specifying is a perfect of another book published by BPB in India.
ISBN 81-7656-835-X. The book published in 2003. (Photo attached)
I joined in the discussion only because of by seeing the similarity and colour of the scanned image of printed book by nura.
Nura,
try to get the ISBN.
View attachment 37712
View attachment 37713
Dear BPB
Yes, i have seen, infact gone thru this BPB book recently,Checked out all the Schematics but did not Purchase this particular title because there was nothing New in this one, all the Schematics were already Present in GT Publications, its first Edition (Vol 2) came out in 2000 & first Vol in 1998
Yes, i have seen, infact gone thru this BPB book recently,Checked out all the Schematics but did not Purchase this particular title because there was nothing New in this one, all the Schematics were already Present in GT Publications, its first Edition (Vol 2) came out in 2000 & first Vol in 1998
audioguru2
- Apr 6, 2004
- 12,026
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Hi Nura,
Maybe great minds think the alike.
When I was young, I designed an audio amp using my own idea of a "complementary darlington" pair for each output transistor. I built it and it worked much better than other amps of that time. A few months later, my circuit was shown by somebody else in Radio-Electronics magazine, claiming that it was his invention. At that time, I never heard of the true inventer, Sziklai.
Maybe great minds think the alike.
When I was young, I designed an audio amp using my own idea of a "complementary darlington" pair for each output transistor. I built it and it worked much better than other amps of that time. A few months later, my circuit was shown by somebody else in Radio-Electronics magazine, claiming that it was his invention. At that time, I never heard of the true inventer, Sziklai.
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