How does the frequency converter fit the brake unit and the brake resistor?!

5 answer

Ming Wei switching power supply is why use?

3 answer

Where does the sound of the frequency converter come out?

5 answer

The difference between switching power supply and communication power supply

3 answer

Laptop adapter why the computer power lights on the off?

3 answer

The laptop's power adapter can be used on a desktop computer

3 answer

an inductor of 0.5H inductance and 90 ohms resistance is connected in parallel with a 20 microF capacitor.A voltage of 230v at 50 hz is main?

1 answer

Turn on the power. What's the reason for the computer to turn on automatically?

4 answer

My laptop power adapter is broken, the standard is 16V, 3.75A, now there is a 12V, 3A adapter can be used?

3 answer

Can maintain power close to 320W of the server running more than 8 hours of UPS power supply

3 answer

UPS uninterruptible power supply is generally used in what place?

3 answer

Why is my laptop connected to the power adapter after the screen to darken?

4 answer

How to know the laptop's power cord is broken, or the power adapter is broken?

3 answer

Will the switching power supply fake load how to calculate?

3 answer

In an AC circuit containing a resistor,capacitor & an inductor,impedence replaces the DC concept of resistance?

2 answer

Is the laptop power adapter hot?

1 answer

How to choose your own UPS power?

3 answer

What is the output voltage of the laptop power adapter?

4 answer

What does the REV 02 on the laptop's power adapter mean?

2 answer

Why should the switching power supply feedback the winding power supply?

3 answer

A 30 kohms resistor is in series with a 80 mH inductor and an ac source?

1 answer

Ups uninterruptible power supply, backup type.

5 answer

When doing Thevenin Equivalent calculations, what ideal resistance do inductors have?

1 answer

Britain's voltage is 230V, the frequency is the same as the domestic 50HZ, and the 10V voltage is actually not different, although the domestic voltage marked 220V, but in fact often fluctuation (the same is true in Britain).

5 answer

UPS uninterruptible power supplies, electronic power products, industrial computers and embedded computers.

3 answer

two inductors are rated at 150 mH. When you measure the resistance of the two inductors, you find that one has?

3 answer

90KW inverter start 90KW, 4-pole motor and 6-pole motor j What is the difference? The inverter can be used for it?

3 answer

HP laptop power adapter squeaky, the computer can not open the machine

5 answer

UPS-500 uninterruptible power supply, no, how to store?

4 answer

Power adapter problem

3 answer