PC Power Consumption: Can I Use a UPS to Supply Voltage?

[apkvnbw]

can anyone tell me my quote is feasible?

Electronic devices requires 1 to 12v approx to function.
Indian Electricity board supplies us 230v for domestic & official appliances; so additionally we need an AC adapter to convert into DC (a sort of stepping down the power) . we cannot ask government to supply 12v dedicated line for electronic devices (it's because of transmission loss & various technological factors)
Rather, we can provide dedicated line from Intranet UPS that suites our requirement.

We have a power distribution unit in our PC called SMPS (Switched Mode Power Supply)

HTSL UPS --> 230V --> SMPS --> (5V, 2V, 6V, 12V… etc)

SMPS takes 230V input & produces various lines of 6v, 2v, 5v, etc as per the requirement of internal components like motherboard, CPU, cooling fan, dos speakers, power led’s… etc.
My solution starts here. We can supply 20v or the maximum output of SMPS from our local UPS. SMPS has to be modified so that it can take 20V input and produces the same output as it does with 230V

HTSL UPS --> 20V --> Modified SMPS --> (5V, 2V, 6V, 12V… etc)

This is for normal PC’s. When we think of laptops, no concept of SMPS, it has a battery, it can supply DC current of required voltages, To charge the battery, we have an adapter that takes, Input: 100-240V 1.3A(1,3 A) 50-60Hz & produces Output: 19.5V(19,5V) 4,7A(4,7 A).
So, we can use our 20v output line from UPS directly to charge our laptop batteries without having an adapter.
If we succeeds in this approach, we can save energy and it would be the optimal solution for future requirements.

Yours,
Vivek Ananda Raj

 

[mgb_phys]

You can distribute DC direct from the UPS to the computer, this is common in large data centers and especially telecoms - a couple of problems.
You can't use a SMPS anymore, they need AC, so if you distribute a single DC supply (48V is normal) you need expensive DC-DC converters at each machine to generate +12V, +-5V. Alternatively you need complex wiring to distribute different DC voltages and keep their grounds correct.
To run a lot of machines you need very heavy cables (DC needs heavier wires at the same current than AC), a 480W PSU replacement needs 20A at 12V for each PC.
It's also difficult to switch high current DC.
The SMPS is actually very efficient.

 

[oswaler]

Yes, your quote is feasible. Using a UPS to supply voltage to electronic devices is a common practice and can help save energy. However, modifying the SMPS to take 20V input may require technical expertise and should be done carefully to avoid any damage to the device. Additionally, using the 20V output line from the UPS to charge laptop batteries may also require some modifications and careful consideration of the voltage and current requirements of the battery. It is important to consult with a qualified technician before making any changes to electronic devices. Overall, using a UPS to supply voltage can be a practical solution for future energy efficiency needs.