avr electric consumption

[oj88]

One more thing about AVR do you even wonder why it is offered for free by most computer shops?

Because most AVRs are a sham, meaning it doesnt work as an automatic voltage regulator. Its a simple pass through circuit with surge suppressor

An AVR is supposed to maintain a certain voltage which is 220VAC. Since by nature electricity provided by electric utilities fluctuates. Its the job of the AVR to keep it stable in order to truly protect your computers. When AC voltage drops below 220 the AVR push it up back to 220 and vice versa

A true AVR is one that employs a variable transformer. When outlet voltage drops the variable transformer of a true AVR will step up the output voltage and vice versa

Dagdag konsumo lang sa koryente yang mumurahing AVR kuno

I can't say that is true. There have probably been more than a dozen 'cheap' AVR's I've seen and opened up. They all work to regulate the output to some extent. I have not seen one that's been hard-wired to be just a pass-thru device.

But you do get what you pay for. With the multitudes of these cheap brands I've observed, some will only have a single boost and/or buck step. Some just 2 boosts or 2 bucks, not both. Most lack the fuzzy logic to have different boost and buck switchover point so those models would tend to oscillate when the input is near or at the switchover voltage. But for all intents and purposes, they all have a regulating circuit. They're not the best design but if push comes to shove, they do offer a reasonable bit of protection in most cases.

To test AVRs and UPSes, I use a variac in my lab.