Regulated power supply and UPS power supply are two common power supply devices, their role is to provide stable power for electronic equipment**, but there are certain differences in principle, function and applicable scenarios. The two power sources are compared from several perspectives below.
1. Difference between principle and function:
1.The principle of regulated power supply is to stabilize and adjust the input voltage to keep the output voltage at a set stable value. The regulated power supply adopts the technical means of adjustment and control, which can quickly adapt to the change of input voltage and maintain the stability of the output voltage. It adjusts the supply voltage so that the device can operate within the appropriate voltage range. 
2.The core function of a UPS power supply (uninterruptible power supply) is to provide a backup power source for electronic equipment in the event of a power outage from the grid power supply. The UPS power supply not only has the function of stabilized power supply, but also provides the power supply capability of the battery pack. When the power supply of the grid is interrupted, the UPS power supply can immediately switch to battery power to ensure the normal operation of the equipment, thus avoiding equipment damage caused by voltage instability or power interruption.
2. Difference in output performance:
1.Output voltage accuracy: The output voltage accuracy of a regulated power supply can generally reach a high level, such as in the range of 1%. The output voltage accuracy of UPS power supply is generally in the range of 3% to 5%, because UPS power supply needs to take into account factors such as battery capacity, so the output voltage accuracy is relatively low.
2.Delay time: The output voltage of the regulated power supply is fast, and the voltage adjustment can be completed in the millisecond level. The UPS power supply needs to be switched when the power supply of the grid is interrupted, so there is a certain delay time, generally between a few milliseconds and tens of milliseconds.
3.Power capacity: The capacity of a regulated power supply is generally small, and it is mainly used for short-term protection of electronic equipment. The capacity of UPS power supply is relatively large, and it can generally be selected according to actual needs. UPS power supplies can provide backup power from minutes to several hours**, depending on the user's needs.
3. Differences in applicable scenarios:
1.The regulated power supply is suitable for equipment with high voltage requirements, such as precision instruments, test equipment, communication equipment, etc.
2.UPS power supply is suitable for equipment with high requirements for power continuity, such as computers, servers, medical equipment, etc. UPS power supplies not only provide stable power**, but they also keep equipment up and running in the event of a grid outage.
Fourth, ** and benefit considerations:
1.The regulated power supply is lower than the UPS power supply, generally only half or even lower than the UPS power supply. This is due to the fact that the function of the regulated power supply is relatively simple, and there is no need to provide battery power, etc.
2.Benefits: The stabilized power supply mainly provides voltage stability protection, and for some equipment with high voltage requirements and relatively stable power supply to the power grid, the use of stabilized power supply can meet the demand. The UPS power supply not only provides voltage stability protection, but also provides power continuity protection, which can avoid the loss caused by many power failures. Therefore, in scenarios that require high power supply stability and continuity, it is more appropriate to choose a UPS power supply.