In the power inverter wholesale market, Cosuper, one of the leading power inverter suppliers , offers high-quality inverters that convert stored direct current in batteries into standard home alternating current. The high-frequency power inverter china types are compact, and light loses little power while not in use, and has an efficiency of over 90%. Good pure sine wave inverter provides alternating currents without electromagnetic pollution, and digital power inverter is compatible with almost all electronic products, gadgets, and appliances. Widely used in emergency backup power, solar power system, vehicles, boat, camping, etc.
TYPES OF battery inverter for sale
SCH Series DC To AC Inverter
300W DC To AC Inverter 600W Power Inverter 1000W Power Inverter 1500W Pure Sine Wave Inverter 2000Watt Pure Sine Wave Inverter 3000 Watt Pure Sine Wave Inverter
CCH Series Car Power Inverter
2000W Car Inverter 3000W Car Power Inverter
DPI Modified Sine Wave Inverter
150W Car Inverter 300W Car Power Inverter 1000W Car Inverter 1500W Car Power Inverter 2000W Modified Sine Wave Power Inverter 3000W Modified Sine Wave Inverter
HOW TO CHOOSE A POWER INVERTER FOR SALE
01
What is an electrical inverter
A power electricity inverter is a converter that converts DC power (such as batteries, or power batteries) into constant-frequency constant-voltage or frequency-modulated and voltage-regulated AC power, like DC to AC power inverter. An inverter converter is a device composed of an inverter rectifier bridge, control logic, and filter circuit.
Power inverter types
According to the output waveform, it can be roughly divided into a sine wave, modified wave, and square wave.
Pure sine wave
The output waveform of the pure sine wave inverter is almost the same as the waveform of our main power.
The advantage is that the purity of the waveform is higher than that of the mains, and the voltage fluctuation is small, so it is widely used. The EPS emergency power system can be formed in place equipment, satellite communication equipment, military vehicles, medical ambulances, ships, solar energy, and wind power generation. But the price is relatively higher.
Modified Sine Wave
The modified sine wave power inverter adopts the PWM pulse width modulation method to generate the modified wave. This is a popular product whose conversion efficiency and cost performance are better than those of sine waves. Modified Sine Wave inverter is suitable for home appliances, such as TVs, computers, stereos, motors below 1000W, and other resistive loads. And it has a lower price and is the mainstream product in the small power inverter market.
The advantage is that using intelligent circuits and high-power FETs greatly reduces the power loss of the system. The soft start function is added to effectively ensure the reliability of the digital power inverter. If the requirements for the quality of power consumption are not very high, it can meet the needs of most electrical equipment.
But the disadvantage is that there is 20% harmonic distortion, which will cause problems when running precision equipment and will also cause high-frequency interference to communication equipment.
Square wave
The advantages of a square wave inverter are simple circuits, low prices, and easy maintenance. But it will cause noise and higher harmonics. Therefore, its carrying capacity is poor, and it will produce large harmonics for general inductive loads and produce noise to motors and TVs.
02
How to choose a power inverter
Equipment operating environment (temperature and humidity, altitude, the impact of application scenarios on other equipment, etc.);
Characteristics of load equipment (rated power, starting power, etc.);
DC power system matching with inverter power supply (12V/24/48V/higher voltage level);
It depends on local electricity and self-generated electricity;
The rated power of the inverter must be greater than the maximum power of the electrical appliance; especially for equipment with large start power requirements, such as motors, air conditioners, etc.
Choose reliable power inverter manufacturers and Longer warranties.
Select the power inverter with rated power according to the load type:
Resistive load
such as incandescent lamps, electric furnaces, heating wires, etc., the inverter can choose 1-1.2 times the load power, thus P inverter = (1-1.2) P load
Inductive load
such as motors, transformers, TVs, etc., the starting impulse power is 3-5 times that of the load itself, and the inverter can choose 3-5 times the load power, that is, P inverter = (3-5) P load
Other factors
inverter working environment temperature, altitude, etc., increase the rated power of the inverter appropriately, such as altitude/1000m, and derate the inverter by about 10%.
03
How to determine the working time of a power inverter battery?
The inverter battery capacity is rated at ampere-hours (Ah), and the ampere-hour is the maximum discharge capacity of the battery in one hour. For example, a battery is rated at 100AH, which means that it can be discharged within one hour. The maximum continuous output current is 100A. Therefore, we can use this value to calculate the time that the load can be used.
For example 4 pcs 12V 14Ah batteries, calculate the use time of 300W bulbs
Battery working time = battery voltage * battery capacity/load power * inverter efficiency
12*(14*4)/300*80% (inverter efficiency)=2.5h
CAR POWER INVERTER BUYING GUIDE
With more and more people enjoying outdoor self-driving trip nowadays, we can see an increasing demand for mobile vehicles. In such a case, a portable power inverter for car will always come in handy. In this article, we’ll show you this compact but sometimes very necessary device, and recommendations that you should buy car inverter.
A car power inverter is a device that allows you to use electrical appliances and devices in your car, such as laptops, TVs, and other electronics. When buying a car power inverter, there are a few important factors to consider.
First, you need to decide on the wattage you need. This will depend on the type of devices you plan to use with the inverter. Make sure to choose an inverter with sufficient wattage to power your devices.
Second, consider the types of power inverters you need. There are two types: pure sine wave and modified sine wave. Pure sine wave inverters are more expensive but provide a cleaner, more stable power output. Modified sine wave inverters are more affordable but may produce some electrical noise that could affect certain devices.
Lastly, consider how to choose the right size power inverter and power inverter function like portability. If you plan to use it on the go, make sure it's compact and easy to transport.
Power electronics inverters are the most common electrical devices which can be seen in many inverter applications. Improper operation can easily cause fire and damage the device. In this case, it is very important to know the power inverter uses after owning the inverter. Below are a few guidelines that users should be aware of before operating a power inverter.
1. Each digital power inverter has an input DC voltage, such as 12V, 24V, etc. It is required that the selected battery voltage must be consistent with the DC input voltage of the inverter. For example, a 12V inverter must select a 12V battery.
2. The output power of the inverter must be greater than the power used by the electrical appliances, especially for electrical appliances with high power at startup, such as refrigerators and air conditioners, a larger margin should be left.
3. Positive and negative poles must be connected correctly—the DC voltage connected to the inverter is marked with positive and negative poles. Red is positive (+), black is negative (-), the battery is also marked with positive and negative, red is positive (+), black is negative (-), must be connected to positive (red to red), negative Negative (black to black). The diameter of the connecting wire must be thick enough, and the length of the connecting wire should be minimized.
4. It should be placed in a ventilated and dry place and keep a distance of more than 500px from surrounding objects. Keep away from flammable and explosive materials, and do not place or cover other items on the device. The ambient temperature should not exceed or fall below its allowable working temperature.
5. Charging and Inversion cannot be performed at the same time. That is, the charging plug cannot be inserted into the electrical circuit of the inverter output during the inverter.
6. Hooking up—When connecting the inverter to the battery always use an overcurrent protection device, such as a fuse or circuit breaker, and use the thickest wire available, in the shortest length practical.
7. The interval between two startups is not less than 5 seconds (cut off the input power).
8. Please wipe with dry cloth or anti-static cloth to keep the machine clean and tidy.
9. Before connecting the input and output of the machine, please ground the machine accordingly.
10. In order to avoid accidents, it is strictly forbidden for users to open the case for operation and use.
11. When connecting the battery, make sure that there are no other metal objects on your hands, so as to avoid short circuits of the battery and burning the human body.
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If you need any kinds of an inverter, please contact us, as a professional inverter supplier, COSUPER is willing to offer you high quality products.
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