Solar Converter Inverter

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FAQ

Laptop power adapter bad what is the phenomenon?
Either the power is bad or the machine on the power supply module is bad to repair service
How to choose a power adapter
There are several principles for replacing the power adapter. 1. The voltage is the same or similar. Your computer's nominal input voltage is 16V, and the following adapter's rated output voltage is 20V, the difference is large, can not be replaced, may damage the computer. 2. The plug has the same polarity. Your notebook marked on the polarity of the mark is inside and outside the negative, that the adapter I really can not see what is the polarity of the label, you take a closer look if the symbols and notes on the notebook is not the same, it is absolutely not. 3. The rated output current of the power adapter can not be less than the rated input current of the computer. Your computer marked the maximum input current is 3.36A, then you buy the power adapter when you want to buy the output current greater than or equal to 3.36A, the bigger the better, but the greater the output current that the greater the rated power, too much Waste, and very cumbersome, generally slightly larger than on the line, leaving some margin.
What is the meaning of the bipolar polarity in the inverter ah There is a +10V signal input is a -10V What is the meaning of ah?
Bipolar input is positive and negative. Bipolar input is generally used to directly through the external reference or potentiometer to achieve the motor forward and reverse switching, without having to switch all the way to switch the signal (switch).
Is the laptop power adapter high temperature normal? Is there anything else?
In fact, I am also facing such a problem, but I have solved: First: you put the battery together, together with the power adapter, 1 hour after you will feel very hot, it is estimated that you say this. Although your battery is full of electricity. Second: the battery removed, and then use the power adapter, 1 hour after you will feel the general heat, much better than the first case. If you follow the above operation is what I said the same situation, it shows that your power adapter is no problem, because I specifically looking for professional after-sales such a problem, and later also detected the battery, are normal, so if you want is not very Hot, you can remove the battery.
How to disassemble the notebook power adapter
3, then open the shell of the power adapter, you can see the adapter circuit outside the package with a copper shield, with a knife to cut the shielding tape on the tape, and then use the soldering iron shield and the internal circuit board connected to the two Solder joints, you can remove the shield.
Laptop warranty period is not over, the power adapter is broken, repair money?
Do not money, first to see where the dealer, if there is no answer, went directly to the repair station, with a good warranty card and other things, that reason you can! The
If it is 8-pole variable frequency motor, enter the motor nameplate parameters in the inverter input for the 4 pole can?
If the control accuracy is not high, then you can use the ordinary control. Since the choice of the inverter, it is best based on the motor nameplate to set parameters to ensure the stability of the motor running
How can a variable speed multi - speed three - phase asynchronous motor be controlled by a frequency converter?
Although the waste, but can be used, we use the frequency band with two-speed motor when the output is connected to the fast three terminals, you can refer to the next