Inverter/Chargers

An inverter is an electronic device that converts the direct current (DC) produced by the solar panels into an alternating current (AC). In other words, it is a low DC voltage current converter (12, 24, or 48 Volts) into a high AC voltage current (120 or 240 Volts). This conversion is necessary since almost all our electronic devices require alternating current for their operation.

The power of an inverter is a testament to the amount of direct current it can transform into alternating current. Thus, the more powerful an inverter, the greater the amount of electricity it can convert during operation. It is therefore important to properly size the inverter in a solar energy system so that it can be able to convert all the energy produced by the solar panels.

The amount of energy that an inverter converts depends on its power and the duration of its use. The powers of the most common solar inverters vary from 4 to 8 kW.

An inverter/charger can be Pure Sine Wave or Modified Sine Wave.

Pure Sine Wave : A pure sine wave inverter outputs a voltage in the form of a sine wave. Your local grid also provides a sine wave output. That’s why you always need a pure sine wave inverter when connected to a grid. Sensitive appliances such as TVs, laptops, cellphones, AC motor appliances (microwave and refrigerator) and electric bikes usually require a pure sine wave inverter. Pure sine wave inverters also generate cleaner, smoother, quieter and more reliable power that allow its user to run appliances and electronics without interference.

Modified Sine Wave : With a pure sine wave inverter, the AC power generated by the inverter will be very close to the actual sine wave. With the modified sinusoidal inverter, the polarity changes abruptly from positive to negative. Looking at the waves, there is a stepped square pattern with the polarity reversed back and forth. This choppy wave can adversely affect more sensitive and sensitive devices. If you have a medical device that needs to be powered B. CPAP machine, modified sine wave inverter cannot be used. In many cases, they often listen to ham and the device is connected to the corrected sinusoidal inverter.

 

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