The role of voltage regulator and UPS power supply is different,and the protection function is relatively complete

The role of voltage regulator and UPS power supply is different, and the protection function is relatively complete

06 Mar 2024

Is the function of a voltage regulator the same as that of a UPS power supply? With the increasing number of electrical equipment in the market, the use of voltage regulators and UPS uninterruptible power supplies is very extensive, and many believe that the two can be replaced by each other. But there is a difference between a voltage regulator and a UPS power supply, and many people always mistakenly believe that a voltage regulator is a UPS. This article introduces the differences between voltage regulators and UPS power supplies from several aspects.

Is the function of a voltage regulator the same as that of a UPS power supply?

UPS power supply:

UPS power supply is divided into online UPS power supply and backup UPS power supply. Generally, household computers are

equipped with backup UPS power supply, which is a type of backup power supply; The backup type is equipped with a voltage regulator, which uses a relay shift voltage regulator method. The voltage regulator effect is very poor and cannot be considered as a voltage regulator.

The Chinese name of UPS power supply is uninterruptible power supply. From the name, it can be seen that it is actually a reserve power supply. When a power outage occurs, the energy stored through the battery is inverted and output AC current to power the equipment. Typically, the time interval between switching from the host to the backup power supply does not exceed 10 milliseconds, so a power outage has almost no impact on the electrical equipment.

Voltage regulator:

It is designed for the unstable voltage of the power grid, mainly for the protection of backend equipment, with relatively complete protection functions for equipment. Generally, large UPS power supplies must also be equipped with a voltage regulator bypass system (voltage regulator), which has a wide range of functions and can be used almost anywhere electricity is needed (provided that the voltage is unstable).

The voltage regulator consists of a voltage regulating circuit, a control circuit, and a servo motor. When the input voltage or load changes, the control circuit samples, compares, amplifies, and then drives the servo motor to rotate, causing the position of the voltage regulator carbon brush to change. By automatically adjusting the coil turn ratio, the output voltage is maintained stable.

**The function of the voltage regulator:**

1. Can stabilize the voltage of low voltage 125V-165V or high voltage 250V-270V between 200-230V, enabling household appliances to work normally;

2. When the input voltage is higher than 255-275V or lower than 125-160V, it can automatically cut off the power supply;

3. When there is a sudden incoming call after a power outage, the output power can be started with a delay of 5-8 minutes to avoid damage to the electrical appliances due to high voltage. When choosing a household voltage regulator, it is important to pay attention to the completeness of the three basic functions mentioned above.

A regulated power supply is mainly used to stabilize voltage, providing a stable electricity environment for electrical equipment, and preventing voltage fluctuations or interference. Due to its completely different functions from UPS power supply, and the UPS power supply also comes with an energy storage battery, the price and cost are relatively high.

Of course, there is a reason why many people mix regulated power supplies with UPS power supplies, because some high-quality backup UPS power supplies do come with a regulated function, which is a type of electronic switch regulator that can be used as a regulator. However, the voltage stabilization effect and accuracy are not as ideal as specialized regulators.

What is the difference between a voltage regulator and a UPS power supply?

The UPS power supply is like an emergency power supply, which can be connected to the mains supply, serving as an AC mains

voltage stabilizer, and also charging the internal battery. When the mains power is interrupted, UPS will continue to supply 220V AC power to the load by inverting the power of the battery inside the machine, ensuring that the server in the computer room will not power off.

A regulated power supply cannot provide backup power for servers in the event of a power outage. It is only designed for voltage instability and is mainly used to protect backend devices, with a more comprehensive function for device protection. In situations where the voltage is unstable, fluctuating high and low, a regulated power supply can be used, but it will not provide power to the server.

The above provides a brief introduction to the functions and differences between the voltage regulator and UPS power supply. In fact, the biggest difference between the two is that the voltage regulator only stabilizes voltage; UPS not only plays a stabilizing role, but also can continue to be powered by battery inverter after a power outage, ensuring that the equipment does not power down.

In summary, regulated power supply, also known as voltage regulator, is a completely different concept from UPS power supply. Many friends mistakenly consider voltage regulator and UPS power supply as the same product, but there are differences in reality, not only in terms of function, construction, or principle, but also completely different concepts. So when making a purchase, everyone can choose based on their own actual situation and must distinguish between them.

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