Power Inverter Online

Posted by Power Inverters
8
Jul 13, 2015
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Inverter ( inverter ) is a DC power ( battery, accumulator ) change into alternating current ( typically 220v50HZ sine or square wave ). Popular speaking, the inverter is a direct current ( DC ) into alternating current ( AC ) device. It consists of inverter, control logic and a filter circuit. Widely used in air conditioning, home theater, electric wheel, electric tools, sewing machines, DVD, VCD, computer, TV, washing machine, freezer, lampblack machine, video recorders, massager, fan, lighting etc.. The main classification Two main categories, one category is the sine wave inverter, another kind is the square wave inverter. Sine wave inverter is with our day-to-day use of the power grid and even better sine wave alternating current, because it does not exist in the electric power system electromagnetic pollution. Fang Bo inverter output is the poor quality of square wave AC, its maximum value is negative to the maximum value at almost the same time to produce, so the load and the inverter itself, resulting in severe unstable effect. At the same time, the load capacity of poor, only for the rated load 4060%, not with inductive load. If the load is too large, square wave current containing three harmonic components will make into the load capacitive current increases, serious damage to the power supply of the load of the filter capacitor. Aiming at the disadvantages, appeared in recent years quasi sine wave ( or modified sine wave, modified sine wave, simulated sine wave inverter and so on ), the output waveform from the maximum value is negative to the maximum value in a time interval, the use effect is improved somewhat, but the quasi sine waveform is still composed by line, which belongs to the category of square wave, not continuous. All in all, sine wave inverter with high quality of alternating current, can drive any type of load, but the technical requirements and costs are high. Quasi sine wave inverter can meet most of our electricity demand, high efficiency, small noise, price moderate, has become the market mainstream products. Fang Bo inverter produced by a simple harmonic oscillator, its technology belongs to the level of 50 time, will gradually withdraw from the market. According to the different power supply inverter, divided into coal power inverter, inverter, power inverter, power inverter. According to different purposes, divided into independent control inverter, inverter. At present, the domestic market and the efficiency of the inverter problems. Inverter in the work itself will consume a portion of the power, therefore, it must be greater than its input power output power. The efficiency of the inverter is the output power of the inverter and the input power ratio. As an inverter input DC power output of 100 watts, 90 Watt AC, then, its efficiency is 90%. The world solar inverters, and high efficiency, the European standard is 97.2%, but the price is more expensive, other domestic inverter efficiency is below 90%, but prices cheaper than imported. In addition to power, waveform, choice and the efficiency of the inverter is also very important, the higher the efficiency in inverter wasted energy less, for electric power is more, especially when you use small power system the importance of this more obvious
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