The Difference Between Inverter and UPS | Which one is Better option

What is UPS and Inverter?

  • We are incredibly dependent on electricity-powered appliances, such as fans, lights, AC, refrigerators, and computers.
  • When power is cut, power to appliances is cut, and they cease to work. If we have backup power supply devices, such as UPS or an inverter, it is possible to guarantee the power supply to appliances and not worry about power interruptions.
  • But, many people are still confused about the distinction between an Inverter and a UPS since both offer backup energy sources in the event of a power interruption.
  • Inverters are favored for general electric appliances that work well and don’t get delayed in the power supply for long periods.
  • UPS is utilized for electronic appliances like computer servers, workstations, and servers. Medical equipment performs crucial tasks and can’t tolerate any interruptions in the power supply.
  • Off-line ups (the normal) switch to batteries within 3 to 8 milliseconds once the primary power source has been shut off—the Inverter switches over in around 500 milliseconds.

UPS:(Uninterruptible Power Supply.)

  • UPS is a term used to describe a continuous power supply.
  • An uninterruptible supply of power (UPS) ensures continuous power to equipment. It means that the switching time from power loss until the battery charge is shorter, which is why it is vital for equipment such as computers, desktops, etc. Medical instruments are not switched off and can cause loss of information.
  • The UPS system is a complete unit comprised of several components: batteries, charge controllers and circuitry, a transfer switch that switches between the mains and backup battery, and an inverter. Inverters are required because the battery can be used to store DC power, and we have to convert it back to AC so that it can be used to power all the appliances on mains’ power lines.
  • UPS = Battery charger + Inverter
  • UPS is nothing more than an inverter that has a built-in battery charger.
  • UPS offers backups that range from between 10 and 20 minutes. The purpose of this is only to provide backup for a limited amount of time to allow you to protect your programs and data.
  • UPS can also protect against line irregularities such as Surge, Voltage fluctuation, Under Voltage over Voltage, Spike, and Noise.


  • Inverter circuits simple convert battery DC into AC and also supply
  • In the Inverter, it converts the direct current into the alternating one. Under normal conditions, the electrical power supply is natural to the load. It also receives the supply from the AC source and charges the battery.
  • In a power outage, when the Inverter is shut down, it receives the battery’s power, converts the DC into AC power, and provides electricity to the electrical equipment.
  • Inverters’ purpose is to supply power backup to all home appliances, including lights, lights, and fans.
  • Inverters use flat plates or tubular batteries to store electricity. It requires ongoing maintenance and must fill the water toppings distilled regularly.
  • An inverter is not able to provide any protection against line anomalies.

Differentialities between Inverter and UPS:

Comparison of Inverters and UPS
DefinitionUPS means Uninterruptible Power Supply.Inverter can be described as a gadget that converts DC electricity into AC
FunctionIt’s an electronic circuit (device) that immediately restores power to the gadget. The gadget continuously and there’s no harm to it.Inverter consist circuitry that converts AC into DC and stores the DC power in the battery. If the power supply is cut off and the battery is empty, that DC energy is transformed to AC and then transferred to the electronic device.
PrinciplesThe first step is to convert AC into DC Power to charge the battery before converting DC Power to AC Power (Inverter) and then this AC power is then supplied to the load. But, UPS monitors the input voltage and process it in accordance with voltage regulations.UPS = Battery charger + InverterAn inverter converts DC electricity (stored in the battery) into AC Power supplied to the devices. The normal process is that AC Power charges the battery . It utilizes sensors and relays to determine when it is appropriate to make use of DC energy as well as AC Power, for DC power.
Time to Back UpPower Back Up for a Short TimePower Back Up for a Long Time
Types(a) Offline UPS, (b) Online UPS, as well as (c) line-interactive UPS.(a) Square Wave, (b) Quasi Wave,(c) Sine Wave
Principal PartRectifier/charger, Inverter, controllerController and inverter.
Change over Time3-8 milliseconds.500 milliseconds.
Voltage FluctuationsAlthough voltage fluctuations in the supply to the input can be controlled via the UPS output, voltages should be as smooth as is possible.When it comes to smoothing voltage outputs, UPS can be thought to be superior when compared with inverters.Inverter is not able to provide any protection from voltage fluctuation
Circuitry ComplexityThe UPS circuitry is much superior to that of inverters.Inverter has simple circuit and UPS
PricingUPS is more costly than an inverter.Inverters are less expensive than UPS.
ApplicationUPS are utilized for electronic applications like computers servers, servers, Network Switches workstations, medical Equipment Processing Equipment that are required for critical tasks and can’t tolerate the interruption of the power supply.Inverters are more suited in General Electric applications where the work is not get affected by long delay in power supply.
ProtectionUPS protect against voltage spikes or voltage drops, instabilities that are the frequency of operation as well as harmonic distortions.Inverter does not provide protection against Line abnormalities.
BatteryUse of sealed maintenance-free (SMF) batteryTubular or flat plate battery
Maintenance of BatteriesThere is no need for maintenance.It requires continuous maintenance and needs to refill the water toppings with distilled water at frequent intervals.
Energy ConsumptionMore due to battery chargingLess


  • Inverters and UPS and Inverter provide an emergency power source of electricity to electrical systems. The two main differences between UPS and the Inverter are they both provide backup power.
  • The transfer of UPS power between the primary supply and the battery can be instant, which is why it is employed to supply backup power for necessary electronic equipment. In an inverter, switching from main power to battery can take a long time, so it is used to powerless crucial electrical equipment.
  • The UPS protects the load from Spike or Voltage fluctuations and noise, while the Inverter cannot offer any protection to the bag.