I was searching for a cheap UPS which can handle my computer system, I have searched Electroncis Market Saddar Karachi and found most of low quality poor performance UPS that can operate a computer costs around 7 to 12 thousand (4+4 UPS).
After viewing market situation I have decided to make a UPS by my own with following objectives
1. UPS will be cheap in cost.
2. Can Operate a Computer efficiently without restarting it.
3. There must be something different as compare to other available UPS in market.
4. Provide long backup so it can run on a small battery and can give longer backup.
5. Must be smaller in size and easy to handle.
With having all above mentioned objectives I have purchased a 4+4 Transformer from Adam Electronics (Co-Operative Market Saddar Karachi) along with MOSFET Transistors circuit and a IC based circuit which is specially designed for computers.
Total Cost of Project.
Body : 350/=
Body Parts and Cables /Connectors etc.. : 350/=
4+4 Copper WindedPower Transformer: 2400/=
MOSFET based circuit with heat skins : 550/=
IC Based Circuit Specially Designed for Computers 650/=
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Total Cost of Complete UPS : 4300/=
Now lets compare my UPS with other available UPS in market.
Other UPS: Displays a old analog volt meter.
My: Displays Nokia style battery charging display along with Nokia Style battery bar meter.
Other: 4+4 UPS are bulky , larger in size with poor quality winded transformer and non IC Based circuits that restarts computers.
My: Packed in most small available box in market, having power rating of 1000VA, equipped with IC based circuit that wont restarts your computer.
Other: Uses BJT power transistors for power output and Diodes for charging.
My: Based on advanced MOSFET transistors so no need of conventional BJT transistors and diodes that reduces the size of my UPS.
Other: Cost of UPS that can run a computer without restarting it starts from 7000 and can get an average UPS nearly 12000
My: As I have made it by myself thatswhy cost is reduced I have made complete UPS for Computer under 4500/= (Actual cost is 4300/=)
Other: Due to poor power transformer it utilizes high battery current during operation. Total loss over a fully charged battery is 4.8 to 6 Ampares
My: Due to 100% pure copper transformer winded with proper core it minimizes the losses (Total loss over full battery is 3A)
Other: UPS damages if load exceeds
My: Automatic load sensor, with automatic short circuit protection, UPS switches off automatically in case of short circuit and battery overload. It also beeps and LED flashes when overload / short circuit occurs.
This UPS can operate following at-once easily on a 100A Battery for upto 2.5 to 3 hours easily:
1. One CPU.
2. One LCD Screen.
3. One Ceiling Fan.
4. Two Energy Savers.
5. One Scanner
6. One Printer
7. One TV Device
8. Mini Speakers
Assembling Images:
Its Superb!! Great Work
Interesting… I also want to purchase this type of UPS. I cant understand that you altered UPS or purchased. very economical..
I have purchased individual parts and circuits, and built it by myself, I have altered circuit for short circuit protection and configure it to work as per my needs.
Please provide the circuit with components list and their values.
can i produce it as a product, what will be the cost of production etc, will you help me.
Hi,
I can help you in this regard feel free to contact me on my email address.
Thanks and best regards
Faraz Ahmed
Pz send me the component details and circuit diagram, if u r having ready made kit also send me the specification (over load protection & short ckt protection)
i want a ups 1000va for my computer so plz tell me how i can buy thisss?
Hi Arsalan,
You can get high quality computer (iPower UPS)
Microprocessor based design
Designed for wide range of appliances (Workstation, ATM Machines, Network Devices, AV Communication, Equipment, FAN, Energy Savers, Television, dvd Players, POS) etc
Full Digital Microchip LCD Display
Built-in Intelligent Automatic Charging System
Extra Long Back-up time
Cold Start Function
Battery Discharge / Overcharge protection
Price : 10,000/=
Contact: 03009297435 Yasir Arafat
Thanks and best regards
Faraz Ahmed