Most of the comments seem to be talking about charging the battery, whereas my view of an inverter takes power from the battery to provide mains voltage power to supply mains products. The battery is then charged by solar power on the following day. Do both types of inverter consume the same amount of power from the battery? I hope you know there are two major types of inverter. Square wave or modified sine wave inverter 2.
Pure Sine wave inverter. Related Posts. I am sure, Square wave inverters are harmful to laptop batteries and laptop chargers. That is the form in which your appliances need power. Sine wave inverters are more efficient than square wave inverters, when it comes to the conversion of DC to AC.
This ensures that the power loss is minimised, due to greater efficiency. As a consequence, your electricity bill does not shoot up. This is an immediate benefit of using a sine wave inverter. There are other long-term advantages too, which we will discuss below.
The red line in the figure represents a sine wave while the green one shows the current alternating in a square wave.
You can see the smooth change-over of a sine wave. This is the same kind of power that the grid supplies. Since your inverter is going to be a substitute for grid power, it is important for the kind of power be the same. Compared to a square wave, there is very little harmonic distortion in a sine wave—essential for expensive equipment. As you can make out from the figure above, sine wave changes polarity instantaneously and smoothly, when it crosses zero volts.
The rise and fall of voltage is smooth as compared to the shape of the square wave. A major advantage of a pure sine wave inverter is that all of the equipment which is sold on the market is designed for a pure sine wave. This guarantees that the equipment will work to its full specifications. One of the disadvantages of a pure sine wave inverter is that these are the most expensive of the inverter designs.
Still, they outperform all other types of inverters, regardless of use. What devices need a pure sine wave to function? Some appliances, such as motors and microwave ovens will only produce full output with pure sine wave power, meaning that a pure sine wave inverter is an important choice for optimal performance. A few appliances, such as bread makers, light dimmers and some battery chargers require a pure sine wave to work at all, making this type of an inverter a mandatory purchase.
Audio equipment, satellite systems and video equipment will run properly using pure sine wave inverters. Generally, most appliances, motors, microwaves, chargers and power tools will produce full power and not cause any buzzing or negative effects.
These types of pure sine inverters are not recommended for medical equipment unless manufacturer approved. Use this inverter for electric shavers and emergency flashlights, garage door openers, laser printers and large strobes used in photography Modified Sine Wave quasi-sine : A modified sine wave inverter , or quasi-sine wave inverter, actually has a waveform more like a square wave but with an extra step.
Motors, such as refrigerator motors, pumps, fans, etc. This is because a fair percentage of a modified sine wave is higher frequencies — that is, not 60 Hz — so the motors cannot use it. Some fluorescent lights will not operate quite as bright, and some may buzz or make annoying humming noises.
Many appliances get their timing from the peak of the line power — basically, the modified sine has a flat top rather than a peak — this may cause the occasional double trigger.
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