# Blog Posts of '2020 January'

Buy Best Car Inverter for Laptop
The car inverter is a small device that can convert 12V or 24V DC power into 110V or 220V AC power. The 12V/24V DC power is from the car battery. Though a car inverter, the car power will be converted to AC power and powered for household appliances. The power of a general laptop is about 60W ~ 70W. So for common user, buying a 150W continues power car inverter is completely enough. Because most family cars have the power of 12VDC and ＜20A current, that is to say, it allows the maximum of about 230 watts appliances. And even some older cars only allow current of 10A. So we cannot blindly seek high power car inverter. Currently connect 12V inverter with power 150W or less to car for electrical appliances use is the best choice.
Power Inverter FAQ
1. Power inverter how it works? Power inverter is a device that can directly convert DC power to AC power. It can be used for car/RV/truck/house. The DC power is from the car battery or home battery. The AC power converted by power inverter can be directly used for charging the phone/laptop/iPad or powering electric fan/refrigerator in the car. 2. How to calculate the power of power inverter according to my car battery? If the specification of the battery is DC 12 volt/ 120 Ah, the output power of the battery is: 12v * 120 Ah = 1440 watts. That means, the battery can provide a maximum power of 1440 watts for a power inverter. So the power selection of power inverter should be lower than 1440W. The 1000W 12V DC to 110V AC power inverter is a good choice.
What is PWM Power Inverter?
Simply put, the power inverter is a kind of electronic device converting low-voltage (12/24/48 volts) DC into 110V/ 120V/ 220V/ 240V AC power. It is named so because we usually transform AC into DC, but the role of inverter does the opposite. The power inverter mainly adopts the PWM (Pulse Width Modulation) control technology, which can suppress or eliminate low-order harmonics. Coupled with the use of self-shutdown devices, the switching frequency is greatly increased, and the output waveform can be very close to a sine wave.
How to Improve Solar Inverter Quality & Efficiency?
The solar inverter in the practical application of optimization applications, you first need to make sure that people buy an inverter is relatively high quality. Only good quality products in order to be respected by the market and is recognized by consumers. We will introduce about how manufacturers realize quality control of the solar inverter.
Power Inverter vs. Converter
Power inverters and converters are both electrical devices to play a role of electrical power conversion in our life. The power inverter is actually to convert direct current (DC) into alternating current (AC). The converter is a process of changing an electrical power source to another required one, such as a voltage converter. Both are frequently applied to the circuit elements in the circuit, but there are still some similarities and differences between the power inverter and the converter.
How to Select a Right Grid Tie String Inverter?
For large solar array you can use multiple string inverters and connect all together with one AC output for your loads. By using grid tie string inverters such way, you can make use of different tilt and azimuth angles that can be applied even for each sting, so getting maximum yield. In addition, increasing the solar array reliability as for example the shadow in one string panel will not affect the efficiency of other strings.
10 Tips for Using a Power Inverter Correctly
Power inverter that converts DC power to AC power provides a great convenience people's lives, especially in home appliances, such as air conditioner, refrigerator, TV, VCR, etc. In order to optimize the use of the inverters in these home appliances, people should pay much attention to proper operation of power inverters. This article will give you some tips how to use the power inverter properly. 1. The DC input voltage of the inverter should be the same as the battery voltage. 2. Power inverter output power must be greater than the power of home appliances ...
Smart Solar Inverter for New Flexible Power Grid
Smart solar inverter It’s the link to the smart grid. The solar inverter should have high advanced communication capability with smart grid in addition to analytic, computing and memory capabilities to provide all information and control features to the smart grid energy management system.
How to Make Off Grid System Easier and Save Cost?
Off grid solar system is more complex in installation than on grid solar system, as it requires more components like charge controller and batteries, so it needs higher technical skills and costs more. Although of this, off grid solar system market grows and most of suppliers / manufacturers try to save the cost and complexity by searching and implements new techniques and services that you should pay attention for as following.
3 Steps to Repair Pure Sine Wave Inverter
Pure sine wave inverter applications in the long term, it is inevitable due to the combined effect of a number of internal and external factors and the emergence of certain failure, thus affecting the normal use of the device. Then, we need to find specialized service personnel to repair the fault detection. This article will introduce the pure sine wave inverter during maintenance.
What is MPPT Feature in Solar Inverters?
Many people working in solar industry knows about MPPT acronym, but few of them understand correctly, although it is an important feature that helps us increasing solar photovoltaic energy harvest. Simply put, it is DC to DC converter incorporated inside most of all modern solar photovoltaic inverters that enable maximizing DC energy harvest getting from solar panels at any time during the operation cycle.
Pure sine wave inverter is divided according to the different inverter output waveform. The inverter is carried out on the basis of a modified square wave inverter, the more obvious advantages of improvement in the whole inverter market has become a mainstream product. This article will introduce the advantages of pure sine wave inverter in the practical application of the performance.
How to Buy the Best Off Grid Inverter?
Off grid solar inverter converts DC electricity comes from solar panels and stored in Batteries to AC electricity to be used to run all of AC loads types existing now like TV, refrigerator, oven, lights, air conditions…etc. What are parameters to check when buying the off-grid inverter?
Solar Inverters Will Drive Utilities in Near future
Today we see many solar plants connected to the power grid, and there will be more and more in near future. All experienced power system engineers, and operators see that it is a must for these solar plants to have sophisticated control system to achieve coordination and integrity between them and other traditional power plants exist in the grid. This smart control system can be done only through solar inverters which represent the brain of the solar power plant.
What Does a Solar Inverter Do?
Today, the new frontier of solar inverters become exist everywhere, it's the smart solar inverter which has the ability to interact with the power grid. It has internal advanced software that enable performing amazing actions. The smart solar inverter is able to connect with the grid even with the presence of disturbances like voltage changes, the inverter automatically switches from operating mode to standby mode, then operating mode or even turn off if the disturbances last for long time.
What is a Solar Charge Controller?
The solar charge controller is an electronic device that works as a voltage and current regulator in off grid solar system. It is used to charge batteries from solar panels during daytime hours and discharge batteries when there is no enough power coming from the sun or during night hours.
How to Choose a Suitable Solar Power Price
Electrical power providers are generally providing two different tariff structures, the first is called flat rate structure, in which the price for the purchased kWh is fixed, its same over 24hours/7days. And the other structure called time of use, in which the price for the purchased kWh differs from time to other, there will be off peak price and high peak price. Usually, off peak time is in the night, high peak time is from afternoon to the evening, and the normal time is represented by the rest of the day hours, in some areas, the high peak kWh charges may reach 50 cents per each kWh.
8 Tips Before Installing the Solar PV System
1. Based on your installation location and expected whether all over the year, what will be the estimated annual electricity production generated from the solar system in kwh? 2. Of course in summer months, the solar electricity production will be higher than winter months due to the intensity of solar radiation, and the question is: What will be the estimated electricity production in kwh for the worst and best months?