How To Distinguish Between Voltage Stabilizer And Ups Uninterruptible Power Supply

Voltage stabilizer and Uninterruptible Power Supply(UPS) are different concepts, but many friends always mistakenly think that voltage stabilizer is UPS. In fact, there is a difference; UPS is divided into online and backup types. Generally, computers are equipped with backup type, which is a kind of emergency power supply; the backup type is equipped with a voltage stabilizing part, a kind of electronic switching voltage stabilizer, which can be used as a voltage stabilizer, but the voltage stabilization effect is not ideal; voltage stabilizer: It is designed for voltage instability, mainly used as back-end equipment protection, and has a more complete equipment protection function. Generally, large UPS must also be equipped with a voltage stabilizing bypass system, that is, LW-PLG voltage stabilizer.
The voltage stabilizer stabilizes the voltage by the beating of the relay. When the grid voltage fluctuates slightly, or other electrical appliances are opened or closed within a certain range, the automatic correction circuit of the power stabilizer will be activated, causing the relay to jump frequently. Every time the relay jumps and shifts, the power supply will be briefly interrupted. Although this interruption did not affect the normal use of other household appliances, it greatly interfered with the reading and writing of highly sensitive computers. Every time the voltage regulator jumped and changed gears, it was like a pulse was input into the computer instantly, which could easily cause an error signal in the computer. In serious cases, it could damage the hard disk or freeze the floppy disk drive.
What is UPS?
UPS means "uninterruptible power supply" in Chinese and is the abbreviation of "Uninterruptible Power Supply" in English. It can ensure that the computer system continues to work for a period of time after a power outage so that users can save the disk urgently, so that you will not be affected by the power outage. Work or data loss. It mainly plays two roles in computer systems and network applications: one is emergency use to prevent sudden power outages from affecting normal work and causing damage to the computer; the other is to eliminate "power pollution" such as surges, instantaneous high voltage, instantaneous low voltage, wire noise and frequency deviation on the mains, improve power quality, and provide high-quality power for computer systems.
From the basic application principle, UPS is a power protection device that contains an energy storage device, uses an inverter as the main component, and outputs stable voltage and frequency. It is mainly composed of rectifier, battery, inverter and static switch.

1) Rectifier: Rectifier is a rectifying device, which is simply a device that converts alternating current (AC) into direct current (DC). It has two main functions: first, it converts alternating current (AC) into direct current (DC), supplies it to the load or inverter after filtering; second, it provides charging voltage to the battery. Therefore, it also acts as a charger;

2) Battery: The battery is a device used by UPS to store electrical energy. It is composed of several batteries connected in series, and its capacity determines the time it maintains discharge (power supply). Its main function is: when the mains power is normal, it converts electrical energy into chemical energy and stores it inside the battery. When the mains power fails, it converts chemical energy into electrical energy and provides it to the inverter or load;

3) Inverter: In layman's terms, an inverter is a device that converts direct current (DC) into alternating current (AC). It consists of an inverter bridge, control logic and filter circuit;

4) Static switch: The static switch is also called a static switch. It is a contactless switch. It is an AC switch composed of two thyristors (SCR) connected in reverse parallel. Its closing and opening are controlled by a logic controller. It is divided into two types: conversion type and parallel type. The conversion type switch is mainly used in systems with two power supplies. Its function is to realize automatic switching from one to another; the parallel type switch is mainly used to connect the inverter in parallel with the mains or multiple inverters.