How to determine the laptop (DELL) battery and power adapter is a set?

4 answer

A question regarding inductor?

0 answer

Lenovo notebook power adapter three packs (warranty) is a few years ah?

3 answer

What does the chassis power supply do?

5 answer

An inductor has an impedance of 30.0 Ω and a resistance of 20.0 Ω at a frequency of 80.0 Hz. What is the induc?

1 answer

What is the D-ups power supply?

3 answer

The difference between starting the battery and the battery for uninterruptible power supply

2 answer

What is the main function of the frequency converter on the machine tools?

4 answer

How can the power supply of the computer case be independently activated?

4 answer

The neutral line (N pole) at the output of the uninterruptible power supply must be connected to the grounded line directly from the grounding device, repeating the ground. What does it mean inside?

3 answer

In the case of the inverter, why can not the normal operation after removing the gearbox? The motor is 4 pole.

2 answer

Seeking switch power supply model

3 answer

What is the difference between regulated power and UPS power supply?

3 answer

What is the difference between the electronic governor and the frequency converter on the motor speed regulation?

3 answer

HP laptop plug in the power adapter can not boot, with the battery can boot?

3 answer

What do you mean by the capacity of the inverter and the capacity of the motor?

3 answer

What is the concept of switching power supply in electronic circuit single chip microcomputer? What's the use of industry? What is the working principle? Must adopt

4 answer

Current through inductor?

3 answer

Lamp & inductor ?

1 answer

Laptop adapter

4 answer

Voltage issues of mobile power and mobile phone batteries

5 answer

Ups uninterruptible power supply how to maintain?

5 answer

Is the switch power supply for industrial instrument power good or transformer good?

4 answer

Lenovo notebook power adapter bad contact how to do

3 answer

In the official website to buy ThinkPad notebook, to the power adapter?

3 answer

Acer 4738g laptop power adapter parameters? In particular, the output current with the voltage is how much?

3 answer

Switching power supply COM how to connect

3 answer

How to check the switching power supply leakage current

3 answer

I need help with this inductor problem?

2 answer

Resistor, capacitors, inductors physics question?

1 answer