1000va Ups Circuit Diagram Needed

While the first circuit is a simple form of the commercial UPS, the circuit provides a constant regulated 5 Volt output and an unregulated 12 Volt supply. In the event of electrical supply line failure the battery takes over, with no spikes on the regulated supply.

That first circuit can be adapted for other regulated and unregulated voltages by using different regulators and batteries. For a 15 Volt regulated supply use two 12 Volt batteries in series and a 7815 regulator. There is a lot of flexibility in the circuit.
TR1 has a primary matched to the local electrical supply which is 240 Volts in Nigeria. The secondary winding should be rated at least 12 Volts at 2 amp, but can be higher, for example 15 Volts. FS1 is a slow blow type and protects against short circuits on the output, or indeed a faulty cell in a rechargeable battery. LED 1 will light ONLY when the electricity supply is present, with a power failure the LED will go out and output voltage is maintained by the battery. The second circuit simulates a working circuit with mains power applied.

You may have to make adjustments to the circuits to get your required ratings. Good luck.

Why don't you want to just buy your own UPS?  Any particular reason?

i owe appologies to the mail senders of whom i've not been able to reply. i've been busy of late, and moreover i'm ve been redesigning the circuit diagram with EAGLE software and ktechlab. the diagram is large and in seven modules. i've succeeded in putting them together as whole circuit(Thanks to EAGLE). Again, i've to do lots of explanation of how everything works and that's part of the delay. The circuit works impressively fine! And i'm planing on going commercial with it. First, i want to setup my own domain and post everything their. For the mean time, i would advice intrested nairaland to learn how to use EAGLE software on Linux. It amazing. L8a.

nice one niggy

hi,
i am new to this forum,
i want to make the UPS for my computer lab,
i want a UPS of 2000va  with this i will connect external batteries (acid battery 140 ampr)
UPS must be digital and i can find all the parts that will use in making UPS can be find in market easly,
cheaper and good,
please i am student, i need perfect solution for this,
i think u will understand what i want to say.
i need the backup time 3 hours or max
waiting for your response, at  ammarnaeembutt@yahoo.com   (plz no spam)

  logging in for the first time i was suprised to see that there are people in need of my field of specialty, i have been desinging power inverter ( or converter as some people might call it) since 2001, i must say that as of now i have improved greatly in the field and through hard work and research i can now design inverter that can boost an output power of 1000VA or more depending on the clients requirements. in the case of higher power output, of about 5000VA or more, one can have multiple power inverters and synchronize the power to get more juice out of it. however the higher the power the more expensive it becomes to get one, i would recommend the use of power inverters as a secondary power supply, that could carry your pc, lights, tv etc any power load of about 1000VA for example AC, pressing iron, boiler, freezer etc these draw a lot of current of current and that means you would require a bank of battery array in other to make it last for a least "1 hour", which is quiet ridiculous. but if you maintain a low power out-take and with a 24 volts 200AH battery i can assure you my 1000VA power inverter would last for 12hours fully loaded, if fully charged. for more information you can contact me on my email, esolutions81@yahoo.com, no spam please. the output ratings are; 220 volts ac, 50hz to 60hz sine wave frequency, and since the system is fully automated ( auto shutdown on low battery power, auto power regulation, automatic charging system, automatic switching from primary power to power inverter) the only human interface is the on or off switch. this is a long duration UPS.

Answer to above question: just check the power rating of your fridge, and multiply by two (for the hard startup)

Any answers to the one below?

Hi Seun,
I'm Bashar for Bangladesh.
I need a circuit diagram of UPS.
Do you help me.
I need 1500VA UPS Circuit diagram.The required output at the inverter is 220/230V @ 50Hz.
I'll be very greatful to you.

Niggy
Kindly send me your circut diagram with a full details.
I am new i just complet my DEA (Associat Engineer of Electronics)
I wana make ups for my computer with have 17" monitor cpu and Epson and HP printer with a scanner.
Kindly send me i will be glade.
My E-mail is majidkhans@msn.com
Thanks

Thinking aloud, you guys have invented inverter with locally available resource and there is a need for this product in Nigeria. Why don't you go commercial with is product. I am sure a lot of people will pay to have this item. You will be smiling to the bank and job will be created. I rather buy Made in Nigeria than Made in China. Just my 2 kobo.

Dear Niggy,

I am in need of your 1000va ups circuit diagram; please send it to me at pedromotosh@yahoo.com
I'll be grateful to you

Regards,
 

Hi guys, i need a circuit diagram for an inverter and car battery charger all-in-one with an output on the inverter side of 2000VA ( hope that sounds correct).

I have a few household appliances including a computer i need to run all the time. I power keeps on going on and off all the time and need a steady power source, especially for my computer ( bought 3 new PSU's for the pc already ).

Basically i want to plug in the charger in 220V 50Hz AC supply and charge the car battery while still drawing power from the battery to run the inverter. Is it possible to charge a car battery and run an inverter of it at the same time.

Any help would be greatly appreciated, and many thanks in advance to anyone who can help me.

Dear Niggy,

Can you share with me circuit of 1000va UPS.
Can you send circuit made in Eagle, I am a regular user of Eagle.
With best regards.

e-mail: osaka99@hotmail.com

Ramiz

 check out these inverter circuit diagram

Hi Niggy,

Is it possible that you can send me your circuit. I am in need of a good UPS circuit. my email is "seaspac@gmail.com"


Thanks

seaspac

niggy please send me a 2kva diagram emeka_ofoegbu@yahoo.com

Sorry this thread is old back in 2006.

Use google you will find UPS circuit diagram out there.