What is UPS and How does it work? – Technical Slate

What is UPS and How does it work?

UPS Full Form or UPS full name is “Uninterruptible Power Supply”. It is a type of device that provides power supply to a computer or other electronic device when the power goes out. There is a battery inside it which can give power backup to the computer for 15 to 30 minutes or more.

Actually it is used to run the computer or other electronic device when the power supply is turned off. John J. Hanley is known as the Father of UPS because he invented it. John Hanley patented it in 1934 as “a device for maintaining an infallible and uninterrupted supply of electrical energy”.

What is UPS ?

In simple language, UPS is an electrical machine that provides emergency power to the load when the input power source ie main power supply is turned off. It is like a power supply with an integrated battery inside which is used for the power source.

UPS can keep a computer running for a few minutes, giving you enough time to easily do whatever you are doing on your computer or other electronic device.

The capacity of some UPS depends on the battery installed or connected to it, for how many hours power backup can be given to it. UPS is used to back up small machines, computers to large servers or machines.

How UPS Works ?

Now let’s talk about how UPS works, when the power supply is turned off, it acts as a power backup. Its main parts are Rectifier, Battery, and Inverter. Rectifier is installed inside the UPS, its main job is to convert AC i.e. Alternating Current into Direct Current.

Battery is also connected in a series in UPS or outside group, when Rectifier converts AC to DC and sends power supply to battery, then Battery keeps that current in charge and uses it when light goes out. Now it is the turn of the inverter, which converts the stored electrical energy of the battery from DC to AC, after which this electricity is used to run computers or other electronic devices.

Types of UPS

There are mainly three types of UPS.

  1. Standby UPS
  2. Line Interactive UPS
  3. Online UPS

Standby UPS

Standby UPS is also known as Offline UPS, these UPS are used for PC ie Personal Computer. It usually consists of one or more batteries to supply power to the system (computers. ATM machines, other medical equipment, flat lifts installed in large buildings, etc.) when the power goes out. To maintain the battery voltage. A rectifier or charger, as well as control circuits, sensors and monitors. The power received from UPS is in the form of DC

Line Interactive UPS

Line Interactive UPS automatically regulates voltage when there is more or less voltage condition. Along with this, it also preserves the life of the battery. Line-interactive UPS also provides protection against Power Spikes & Surges. They also provide Radio frequency interference (RFI) and Electromagnetic interference (EMI) filtering. These UPSs are better suited for applications where you want to protect critical equipment and have high utility power. These UPS are usually cheap even for a small office.

Online UPS

Online UPS is also known as Double Conversion UPS, it is the most used UPS. This UPS differs from Standby or Line Interactive UPS in many areas. This type of UPS power supply easily converts AC to DC and then back to DC into AC. These UPSs are designed to protect against damage caused by power blackouts, voltage sag, voltage surges, over voltages, etc.

What are the benefits of using UPS

There are many benefits of UPS such as –

  • It is used for power supply in case of emergency.
  • Regulates the voltage This can be from a few minutes to a few days This is more during the summer months when air conditioners put pressure on the power grid.
  • Also solves the problem of over-voltage
  • Works as a shield against unknown data loss
  • Also protects against UPS Power Failure
  • It also prevents damage to the hardware due to spikes and surges.

Disadvantages of not using UPS

If you do not use UPS, you may have to face Power Failure, as if suddenly the power goes out, you will not be able to easily save whatever work you are doing on your computer, due to which your data may be lost.

Along with this, you may also have to face the problem of over-voltage and damage to your computer’s hardware due to spikes and surges if you do not use UPS.