What is the difference between the inverter and the inverter

The inverter also known as power converter is capable of (battery, storage battery) is converted to DC and mains same AC220V, 50HZ AC, for general electrical use.
The inverter is the use of power semiconductor devices will be the role off frequency to another frequency power conversion power control device.
The effect is to change the drive AC motor supply frequency and amplitude, thereby changing the magnetic field of its movement cycle, to achieve the purpose of controlling the motor speed.
Inverter works are first put through the rectifier bridge rectifier frequency power to DC and then into different frequency AC power supplied to the motor through the 1000w with charger inverter.
The biggest difference between the inverter and the inverter is part of the frequency converter must be adjusted, and the inverter output as long as there is a fixed frequency on the line

How to determine the quality of the inverter

Since the inverter has been increasing use, but when people do not know how to buy an inverter to judge the quality of the inverter, here are a few points to attention:
First, instead of using a modified sine wave inverter 5000w solar inverter, since the modified sine wave inverter circuit is relatively simple, cost is low, but modified sine wave inverter with a carrying capacity was poor, small range, especially such as motors, printers, pumps and the like, it is easy to damage, this kind of judgment is very simple, that price is less than 1 yuan / W is likely to be modified sine wave inverter;
Second, are the sine wave inverter, and some manufacturers subtractive process, but also caused decline in the quality of the inverter, such as internal circuit boards must be moisture treatment; housing must meet certain thickness; noise during operation; overload, short circuit protection and alarm ; over-temperature protection; and meticulous self-repair aging and so on.
Third, no matter for what areas of the inverter, are automotive, shipbuilding, telecommunications, electricity, or home, is a very strict, very demanding production process.

12V turn 220V inverter works

First, it divides a DC voltage to the preamp IC power generating a control signal KHZ level all the way to the front stage power tube driven by a control signal so that the high-frequency switching power transistors continue to produce low-voltage high-frequency transformer primary alternating current (AC although this time voltage is low, but the frequency is very high, the purpose is to make the post-stage transformer generates a voltage proportional to the voltage of a high frequency pre-and post-stage output, of course, but also in power tube can withstand the frequency range) through high frequency transformer output frequency alternating current and then after fast recovery diode full bridge rectifier output a high frequency of several hundred V DC power to the rear stage of control signal 50HZ about then generated by the post-stage IC to control the post-stage power tube work and output 220V50HZ ac
Of course, a complete 12v car inverter also need some protection circuits such as high and low temperature protection Input voltage overload protection and filter circuits in high-frequency circuit filter is also important to be prone to a number of high-frequency interference and parasitic coupling it is necessary to filter circuit to filter In addition to these factors to increase the stability of the circuit

Function PV inverter

3000w solar inverter only has the direct exchange conversion function, but also has to maximize the performance of the solar cell functions and system fault protection. Summed up automatic operation and shutdown functions, maximum power tracking control, anti-alone operation function (and network systems), automatic voltage regulation function (and network systems), the DC detection (grid systems), the DC ground fault detection function (grid systems). Here a brief stop function and automatic operation and maximum power tracking control. 1, automatic operation and shutdown morning after sunrise, gradually increase the intensity of solar radiation, solar cell output also increased, when the work required to achieve the output power of the inverter, the inverter starts running automatically. After entering operation, the inverter will always monitor the output of solar cell modules, as long as the desired output power of the solar cell module output power is greater than the inverter operation, the inverter will continue to run until sunset down, even rainy days The inverter can be run. When the solar cell module output decreases, the inverter output is close to 0, the inverter will form a standby state. 2, the maximum power output of the solar cell module tracking control function is varies with the intensity of solar radiation and the solar cell module itself temperature (chip temperature). In addition, as the solar cell module having a voltage increases with the current decline of characteristics, so there can get the best operating point of maximum power. Solar radiation intensity is changing, obviously the optimum operating point is changing. In contrast to these changes, and always let the operating point of the solar cell module at the maximum power point, the system always get the maximum power output from the solar cell module, this control is the maximum power tracking control. The most important feature of the solar inverter systems is included in the maximum power point tracking (MPPT) this function.

Sine wave and modified sine wave

Sine wave power inverter output is the same as the grid we use every day even better sine wave AC, because it does not exist power of electromagnetic pollution. Square wave inverter output power is the poor quality of the square wave AC, its positive maximum to negative almost at the same time generate the maximum, so causing severe destabilizing effects on the load and the power inverter itself. Meanwhile, the load is low, only 40-60% of the rated load, not with inductive load. As the load carried is too large, square-wave current third harmonic components contained will flow into the capacitive load current increases, severe damage to the load of the power supply filter capacitor. In response to these shortcomings, in recent years there has been quasi-sine wave (or modified sine wave, modified sine wave, sine-wave, etc.) 48v to 220v power inverter, the output waveform from the positive to the negative maximum value between the maximum value there is an intervals, using the results improved, but is still quasi-sine wave by the broken line, belonging to a square wave category, continuity is not good, and there is a dead zone. All in all, sine wave power inverter provides high-quality alternating current, can bring any kind of load, but the technical requirements and costs are high. However, some sophisticated electronic equipment and appliances must use inductive load class sine wave power inverter. Otherwise, ranging might cause related electronic device is not working properly, it caused heavy equipment and power inverter damage or shorten its expected life. Quasi-sine wave power inverters meet our daily most of the electricity demand, high efficiency, low noise.

PV inverter presentation

PV inverter can be divided according to the macro: 1. Ordinary inverter 2. Inverter / control one machine 3. Posts and Telecom Inverter 4. aerospace, military inverter used in various ways according to the inverter divided into: 1. Press the inverter output AC power of frequency: (1) frequency inverter frequency inverter frequency is 50 ~ 60Hz inverter (2) IF counter IF inverter frequency is generally 400Hz to tens kHz (3) high-frequency inverter high-frequency inverter frequency is generally more than a dozen KHz to MHz. 2. Press the number of the inverter output can be divided into: (1) single-phase inverter (2) three-phase inverter (3) multi-phase inverter 3. The inverter output power of the whereabouts of points can be divided into: (1) active 5000w inverter charger (2) in the form of passive inverter 4. The inverter main circuit can be divided into: (1) single-ended inverter (2) Push-Pull Inverter (3) half-bridge inverter (4) full-bridge inverter 5. Press the inverter main switch device types can be divided into: (1) thyristor inverter (2) transistor inverter (3) field effect inverter (4) insulated gate bipolar transistor (IGBT) inverter 6. Press the DC power supply can be divided into: (1) The voltage source inverter (VSI) (2) current source inverter (CSI) 7. Press the inverter control mode can be divided into: (1) Frequency Modulation (PFM) inverter (2) pulse width modulation type (PWM) inverter 8. The inverter switch circuit work can be divided into: (1) resonant inverter (2) fixed-frequency hard switching inverter (3) fixed-frequency soft switching inverter

Effect inverter

Simply put, the inverter is a kind of low-voltage (12 or 24 volts or 48 volts) direct current into 220 volts AC electronic devices. Because we usually 220 volts AC into DC rectifier to use, and the role of the 500w charge inverter on the contrary, hence the name. We are in a "mobile" era, mobile office, mobile communications, mobile leisure and entertainment. In a moving state, the people not only need low-voltage direct current from the battery or battery supply, but also an essential need in our everyday environment 220 volts AC inverter to meet us this demand. Inverter free two main categories, one is sine wave inverter, and the other is a square wave inverter. Sine wave inverter output is the same as the grid we use every day even better sine wave AC, because it does not exist power of electromagnetic pollution. Square wave inverter output is the poor quality of the square wave AC, its positive maximum to negative almost at the same time generate the maximum, so causing severe destabilizing effects on the load and the inverter itself. Meanwhile, the load is low, only 40-60% of the rated load, not with inductive load (explained in detail below article). As the load carried is too large, square-wave current third harmonic components contained will flow into the capacitive load current increases, severe damage to the load of the power supply filter capacitor. In response to these shortcomings, in recent years there has been quasi-sine wave (or modified sine wave, modified sine wave, sine-wave, etc.) of the inverter, the output waveform from the positive maximum to the negative maximum value between the time there is a spacing effect has improved, but is still quasi-sine wave is composed of a line, belonging to a square wave areas, poor continuity. In conclusion, 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. Square wave inverters produced using simple multivibrator, its technology is the level of the 1950s, will gradually withdraw from the market. According to the power inverter hair, divided into coal inverter, solar inverter, wind inverter, nuclear inverter. Depending on the application, divided into independent control of the inverter, and inverter. Inverter efficiency as described above, the inverter work itself should consume some power, therefore, its input power is greater than its output power. Efficiency of the inverter that is inverter output power and input power ratio. If a single inverter 100 watts of DC power input, the output of the 90-watt AC power, then its efficiency is 90%. The world solar inverters, high efficiency in Europe and America, the European standard is 97.2%, but the price is more expensive, the domestic market is only Shenzhen Green New Energy Co., the largest pure sine wave inverter efficiency can reach 95% or more, domestic other inverter efficiency is 90% or less. In addition to efficiency, select the inverter waveform is also very important.

The difference between pure sine wave and sine repair

Inverter waveform is divided into two categories, one is sine wave inverter (ie, pure sine wave inverter), the other is modified sine wave inverter (modified sine wave). Sine wave inverter output is the same as the grid we use every day even better sine wave AC, because it does not exist power of electromagnetic pollution. Modified sine wave (or modified sine wave, quasi sine wave, sine-wave, etc.) of the 8000w high frequnency inverter, the output waveform from the positive maximum to the negative maximum there is a time interval between, improvement effect, but quasi-sine wave is still made polylines, still belongs to the category square wave, continuity is not good, and there is a dead zone. Modified sine wave inverter generally use non-isolated coupling circuit, and pure sine wave inverter with isolated coupling circuit design. Its prices vary a lot.

Use car inverter note:

1, should be strictly in accordance with the user's manual to the use of an inverter;
2, when the inverter output voltage 220v AC 220v and this is in a small space and in a movable state, to be placed in a more secure place to prevent electric shock;
3, when not in use, the best cut off the input power supply;
4. Do not place the battery power inverter near direct sunlight or warm air outlet;
5, when the inverter operation will generate heat, so do not place items on or near the top;