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Pfc power factor correction

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A good PC power supply has "power factor correction" and brings the power factor to nearly 1.0.
A 1000VA UPS can support 900V or more load.
A cheaper PC power supply without "power factor correction" will draw more current. A 1000VA UPS can only support about 600W load.

Posted on Aug 20, 2014

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Posted on Jan 02, 2017

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The red is blinking 8 times and green 4 times. The error charts states PFC circuit error. How can this be fixed ?


Power off at the isolator for 10 mins then switch back on and try again. If error code persists, then it is most likely the controller in the outdoor unit.
Excessive voltage of DC voltage on PFC circuit in inverter PCB is detected, or the excessive current in the circuit is detected.
> Permanent stop.
[Diagnosis Point]
Controller PCB defective (Refer to after mentioned "PFC circuit diagnosis")

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Tassimo coffee machine


Most power inverters require the vehicle to being running to operate, and make sure it's the correct wattage, if it's a small watt inverter it doesn't have enough power, as a coffee machine is considered higher wattage, hope that answers your question ?

Feb 21, 2015 | Magnum MM1524AE : 1500 Watt, 24V Inverter...

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What is pfc protection


( Power factor correction ) Circuit protection on controls. The LG a/c is manufactured using the PFC and sign wave technology, By the PFC control, Raising the operating voltage from the existing DC 280 v to DC 380 v can be done. Thereby it makes operation smooth in high-frequency area. The sine wave control enables soft operation in low frequency area, Thereby expanding the product's operating range. This also markedly improves the product's energy efficiency. hope this helps

May 09, 2014 | LG LS-L1210CL Mini Split Air Conditioner

1 Answer

Can i use any charger on s505


The Toshiba Satellite 5205 series of Notebook PC, and the S505 series model; uses an AC adapter (Charger) that produces 15 Volts DC.

http://www.sparepartswarehouse.com/Toshiba,Satellite,5205,PS520U-31P1RV,Laptop,AC-Adapters.aspx

You will see AC adapters sold that show 15 to 24 Volts. (DC)

http://www.duracelldirect.com/toshiba_satellite-5205-s505_ac-adapters_laptop_ac-b20h.aspx

This is because the AC adapter (Charger) has PFC.
Power Factor Correction,

http://www.hardwaresecrets.com/article/Everything-You-Need-to-Know-About-Power-Supplies/181/2

Also I see it is just a two pin AC adapter plug, to laptop.
Center hole is Positive, outer metal cylindrical metal shell is Negative.

Go for 75 Watts or higher though, and not a 65 Watt model.

[ On the case of the AC adapter;
Input: 100 ~ 240 VAC 50-60Hz

Means it can use from 100 to 240 Volts AC, and either 50 or 60 Hertz.

Output: 15VDC 6A

Means 15 Volts DC at 6 Amp's. (Amperes)

Watch the outside dimension of the cylindrical part, and the center hole dimension. Outside cylinder may be correct, but center hole may be too small. Or vice-versa.

Regards,
joecoolvette

Dec 17, 2012 | Toshiba Satelite 5205-S505 Notebook

2 Answers

46RV535U 46 in. HDTV LCD TV where is the fuse


There are several fuses on the power supply board.

Usually the one that fails is not the main AC line fuse (which is close to the AC line input), but the PFC fuse located, you guessed it, next to the PFC regulator IC on the board.

When the PFC fuse is blown (measuring open) you also need to replace the PFC IC and possibly other components on the board. Most of the time the PFC is sufficient though.

Here's a link for repair service for the board:
http://www.coppelltvrepair.com/p/751/toshiba-46rv535u-power-supply-board-repair-service-for-dead-refusing-to-power-tv-or-faint-display-problem

Also search there for the TV model, we may have repair kits or exchange services available!

Hope this helps!

Jul 30, 2012 | Toshiba Regza 46RV535U 46 in. LCD HDTV

1 Answer

I have a pavilion dv 7 that shutdow the otherday.The battery was hot and if i turned the pc back on it would run for a couple minutes then shutdown.The charger was also hot. I purchased a new battery and...


There are isues with HP external power supplies - if it is a dv7-3xxx series you require AC Smart adapter (120 watt) - 100-240VAC input, 50-60Hz, 2.5A - 18.5VDC output, 6.5A, Pt No 463953-001

for earlier models require AC Smart power adapter (90 watt) - 100-240VAC input, 47-63Hz - 19.0VDC output, 4.74A, 90 watts, with power factor correction (PFC) 463955-001
If you are within the warranty period utilize that warranty if not contact HP and see what price a replacement external power pack is.

Jun 15, 2010 | HP Computers & Internet

2 Answers

Where is the fuse inside the power supply model fsp200


The unit is only 200watt and the fuse cost about $2,Thats if there one built into it,
The replacement power supply is about $20-00 NZD
Probably 20minutes to fix (for a novice) depending on their skill level and tools available,

BEST ADVICE Replace it

Power is something you dont want to mess with because it can kill.
The power packs are replaceable but people arent.
Be very careful and dont mess with the power.

I am an Electrician and I respect power.Misterdj

Mar 24, 2010 | AOpen (FSP200-60SAV) 200-Watt Power Supply

1 Answer

My ups cannot give backup when AC power fails no power supplied to PC then PC is restarted but i replaced a new battery but no result found. What is the solution for this problem ?


It sounds like you have a computer with an Active PFC (Power Factor Correction) Power Supply.

Back-UPS units, when running on battery power, output a Modulated / Stepped Sign Wave. Active PFC Power Supplies are NOT compatible with this pseudo-sign wave power, which is the reason it will not stay running.

You need a Smart-UPS unit, capable of delivering a true sign wave when on battery output.

Feb 13, 2010 | APC Back-UPS 400VA (BK400) UPS System

1 Answer

I need a power supply compatible with Cooler Master CAC-T05-UW. Features are ATX Mid Tower, ATX, Micro ATX compatible form factor, 2 External 5.25'' drive bays, 2 External 3.5'' drive bay, 2 Internal...


The Cooler Master RS-600-AMBA-D3 600W ATX12V V2.3 SLI Certified Crossfire ready 80 PLUS certified modular active PFC.

Cooler Master eXtreme power RS550-PCARE3-US 550W ATX12V V2.3 SLI ready CrossFire ready power supply.

Two models that should fit with that tower. Cheers!

Aug 19, 2009 | Computers & Internet

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