However, this is not critical for most electronics as they deal with the output quite well. Almost all consumer grade inverters that are sold as a "pure sine wave inverter" do not produce a smooth sine wave output at all, just a less choppy output than the square wave (two-step) and modified sine wave (three-step) inverters. To more clearly distinguish the inverters with outputs of much less distortion than the modified sine wave (three-step) inverter designs, the manufacturers often use the phrase pure sine wave inverter. Square wave Ī power inverter device that produces a multiple step sinusoidal AC waveform is referred to as a sine wave inverter. The second method converts DC to AC at battery level and uses a line-frequency transformer to create the output voltage. There are two basic designs for producing household plug-in voltage from a lower-voltage DC source, the first of which uses a switching boost converter to produce a higher-voltage DC and then converts to AC. IEEE Standard 519 recommends less than 5% THD for systems connecting to a power grid. Technical standards for commercial power distribution grids require less than 3% THD in the wave shape at the customer's point of connection. One measure of the purity of a sine wave is the total harmonic distortion (THD). Common types of inverters produce square waves or quasi-square waves. Hundreds of thousands of volts, where the inverter is part of a high-voltage direct current power transmission system.Īn inverter may produce a square wave, sine wave, modified sine wave, pulsed sine wave, or near-sine pulse-width modulated wave (PWM) depending on circuit design.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |