2014年12月29日星期一

5000 watt power inverters How to choose inverter products

Car inverter is a work in high-current, high-frequency environment power products, the potential failure rate is very high. Therefore, consumers must be careful when DC AC power inverters buying. First, from the inverter output waveform selected, preferably not less than quasi-sine wave; secondly, to have a complete circuit of the inverter protective function; Third, manufacturers have a good after-sales service commitment; fourth, circuits and products have been tested over time. 
Inverter, inverter device must be composed of a thing to so called, the difference between him and the transformer directly, that is, he can achieve a DC input and output AC, working principle and switching power supplies the same, but the oscillation frequency in within a certain range, for example, if the frequency is 50HZ, output was AC 50HZ. The inverter frequency can be changed in the device. 
Transformers generally refers to a device-specific frequency bands, such as frequency transformer, the transformer is that we usually see, they both inputs and outputs solar power inverter must be within a certain range, for example, can work within the 40-60HZ range.

2014年12月27日星期六

5000 watt power inverters Quasi-sine wave inverter can be used in which electrical

Also divided into several quasi-sine wave, square wave from almost the same square wave to sine wave closer rounded trapezoidal wave. We discuss here only a square wave, Inverter thermal design waveform which is currently the most commercially available high-frequency inverter can provide. Such quasi-sine wave inverter can be used in notebook computers, televisions, modular stereos, camcorders, digital cameras, printers, various chargers, the palm computers, game consoles, DVD players, mobile DVD, home treatment device and so on, the larger the inverter output power can also be used in small electric appliances such as hair dryer, electric cup, kitchen appliances and so on. But for inductive load class appliances such as refrigerators, electric drills, etc. are not prolonged use of quasi-sine wave inverter power supply. Otherwise, it may cause damage or shorten the life expectancy of the inverter and related electrical products. If you must use DC AC power inverters an inductive load, suggested the use of reserve power larger quasi-sine wave inverter, as the site offers large peak power inverter. Here, the focus here on quasi-sine wave inverter used in TV (traditional display class) examples. TV inverter has the following three requirements: First, the TV in the boot, degaussing circuit for electricity demand has great moments, so the peak power inverter demanding. For example, a 25-inch digital TV, the power consumption under normal operating conditions is about 80 watts, while the boot instantly power up to 1450 watts. Second, because the television field frequency equal to the frequency of the AC power, the AC inverter output frequency must be accurate. Third, the inverter should not interfere with the TV. Even if it can satisfy the Pure sine wave power inverter above three conditions, the TV when using quasi-sine wave AC power, the screen will still have a few fixed interference pattern, the color will be slightly greenish (when using the old-fashioned TV, cast the situation is more serious), but the other is no different.

2014年12月24日星期三

4000 watt power inverters How should connect the inverter and the power supply and the load

A: The use of electrical appliances 150 watts vehicle power inverters to 150 watts can be directly plugged into the inverter plug the cigarette lighter socket after use. More than 150 watt inverter via alligator clips directly to the battery wires, the battery positive red wire, black wire to the battery negative (not reversed, remember!) If the battery power is far away from the place, connect the inverter principle is: an inverter with battery 24 volt power inverters connections should be as short as possible, and 220 VAC output lines longer anyway.

2014年12月22日星期一

3000 watt power inverters What is "inductive load"

In layman's terms, that the application of DC AC power inverter electromagnetic induction principle of making high-power electrical products, such as motors, compressors, relays, fluorescent lights, and so on. These products need when starting a ratio to maintain normal operation (about 3-7 times) required a much larger current starting current. For example, a refrigerator power consumption during normal operation of about 150 watts, its starting power up to 1000 watts or more. In addition, due to the inductive load in an instant power or disconnect the power supply, will produce back-EMF voltage, peak voltage of this inverter can withstand far greater than the voltage value, it is easy to vehicle power inverters cause instantaneous inverter overload affect the service life of the inverter. Thus, higher electrical power supply waveform such requirements.

2014年12月19日星期五

8000 watt power inverters Divided by the output waveform, the inverter is divided into several categories

 The two main types, one is the sine wave inverter, and the other is a square wave inverter. Sine wave inverter output power is the same as we use every day or even 6000 watt power inverters better sine wave AC power because it does not exist in the electromagnetic pollution. The square wave output of the inverter is the poor quality of the square wave alternating current, the positive maximum to the negative maximum value to almost simultaneously generated, so resulting in a dramatic effect on the instability of the inverter and the load itself. At the same time, its load capacity is poor, only 40-60% of the rated load, not with inductive load (explained in detail below article). If the load carried by large, square-wave current third harmonic components contained enable capacitive currents flowing into the load increases, and in severe damage to the load of the power supply filter capacitor. For the above disadvantages, in recent years a quasi-sine wave (or modified sine wave, modified sine wave, sine-wave, etc.) of the inverter, the output waveform from the positive maximum to a negative maximum time between intervals, using the results improved, but is still quasi-sine wave by the broken line, belonging to the scope of the square wave, continuous bad. In conclusion, the sine wave inverter providing high-quality alternating current, can bring any kind of load, but the technical requirements and costs are high. Quasi-sine wave inverter can meet most of our electricity demand, high efficiency, low noise, moderate prices, and thus become the market mainstream products. DC AC power inverter Square wave inverters produced using simple multivibrator, which belongs to the level of technology in the 1950s, will gradually withdraw from the market.

2014年12月17日星期三

6000 watt power inverters What is the inverter, what role it

Simply put, the inverter is a low-voltage (12 or 24 volt) DC into 220 volts 12v power inverter AC electronic devices. Because we usually rectified to 220 volts AC into DC to use, and the role of the inverter on the contrary, hence the name. We are in a "mobile" era, mobile office, mobile communications, mobile leisure and entertainment. In moving state, people not only need low voltage direct current from a battery or battery supply, 6000 watt power inverters but we need more indispensable in our daily environment 220 volts AC inverter to meet us this demand.

2014年12月14日星期日

5000 watt power inverters Power inverter Profile

Inverter (inverter) is the DC power (battery, storage battery) Car inverter knowledge into alternating current (typically 220v or 380V50HZ sine or square wave). Emergency power, the general is to reverse into 220v DC bottle exchange. 
The power inverter is 12V or 24V DC power (battery, storage battery) into alternating current (typically 220v50HZ sine or square wave), typically used for substations, changed me, to provide emergency power for the high-voltage cabinet cabinet, this products are high-voltage inverter. 
Popular speaking, the inverter is a Off grid inverters direct current (DC) into alternating current (AC) devices. It consists of inverter bridge, and filter control logic path component.

2014年12月12日星期五

4000 watt power inverters Automotive Power

Car power inverter power called, is a way to convert the DC power DC12V and AC220V AC mains the same, for general electrical use, is a convenient power converters, as DC AC power inverters commonly used in the automotive named. General use car power car battery or cigarette lighter power supply, the first such low-voltage direct current is converted to DC 265V or so; then is the real transformation stage, it will transform high voltage DC to AC 220V, 50Hz for. With the car power, you can put all the family moved to the car using small appliances such as mobile phones, laptop computers, digital cameras, car refrigerators, cameras, DVD, etc., thus making the car there is a feeling of home away from home . Since its launch, many limitations of using those appliances in the car will no longer exist, people can really enjoy, "and family-friendly, connected with the world" feeling. 
Car power not only apply to vehicle systems, as long as there are occasions DC12V DC power supply, power inverter can be used, will convert DC12V AC220V AC, bring convenience to people's lives. Car power fully take into account the external environment, when an overload or short circuit protection will be automatically shut down. The output voltage of the power supply through the feedback confirmed the car itself can make the voltage stability, voltage variation is less than the rated load and 10V. It should be noted that the purpose of the automobile is the output power and the same mains voltage to meet the needs of appliances, automotive power actually output is an analog sine wave and 12 volt inverter the sine wave of the mains is true, the two slightly different , generally do not affect the use, it is the working principle of automotive power decision.

2014年12月10日星期三

3000 watt power inverters Turn on the power car

A. B. The main purpose of starting the vehicle comes with lights that can be used to start the vehicle at night to play Operation C. D. apply to emergency self and family, and ships with a backup power supply 12V and 220V chargers E. F. electricity and access can be detected 12V small appliances using all three main functions: 1, emergency start the car: When the car failed to start due to the battery power shortage car, DC AC power inverters you can start the car emergency. 2, Maintenance Lighting: own lights, car maintenance can be illuminated at night. 3,12 V Power Output: built cigarette lighter socket, you can output 12V DC. 4, with the car inverter, 220V power to become mobile. 5, easy to charge with car charger and 220V charger, charging both at home and can also be charged in the car.

2014年12月7日星期日

8000 watt power inverters inverter power

 In the medium and large -capacity photovoltaic system , inverter power output should be less distortion sine wave . This is due in large capacity systems, the use of a Off grid inverters square wave power supply , the output will contain more harmonics , high harmonics will generate additional losses , load a lot of photovoltaic systems for communications or instrumentation, these equipment on the grid have higher quality requirements, among the large-capacity photovoltaic power generation system and network operation , in order to avoid contamination of public electricity grid, also called a sine wave inverter output current. DC inverter into alternating current, if the DC voltage is low, the AC transformer step through that get the standard AC voltage and frequency. Large -capacity inverter, due to a higher DC bus voltage, the AC output is generally not required that can achieve step-up transformer 220V, in the small -capacity inverter, due to low DC voltage, such as 12V, 24V, it must be designed to boost circuit. Medium and small -capacity inverters generally have a push-pull inverter circuit, full-bridge inverter circuit and high frequency boost inverter circuit are three push-pull circuit , the step-up transformer neutral plug connected to the positive supply , two power tubes alternatively , the output AC power is obtained , since the ground side of the power transistor connected to the drive control circuit is simple and , in addition to the transformer has a leakage inductance to limit the short circuit current, thereby increasing the reliability of the circuit . The disadvantage is that the use of low transformers, inductive load driving ability is poor . Full-bridge inverter circuit to overcome the shortcomings of the push-pull circuit , the pulse width of the power transistor to regulate the output , i.e., the output AC voltage RMS change. Since the circuit has continued flow loop , even for inductive load , the output voltage waveform is not distorted . The disadvantage of this circuit is that the upper and 6000 watt power inverters lower arm of the power transistor is not common ground , and therefore must be used exclusively drive circuit or the use of isolated power .

2014年12月4日星期四

8000 watt power inverters Three-phase inverter operating instructions

Use to avoid injury or accident, AC power inverters please strictly follow the following instructions to use or installation. 
(1) When installing the inverter to be operated by professionals, or by a local dealer to help complete. 
(2) verify that the DC power supply voltage range meets the requirement, the voltage polarity is correct. 
Note: Make sure the load voltage input range that meets the requirements of the three-phase 5-wire 380AC, and to ensure that the phase sequence is properly connected to the output jack 
(3) Do not put liquid into the interior of Off grid inverters the inverter, or wet wipe machine casing. When the body can not directly run the machine