Introduction To Inverters – What Are The Things That You Need To Know About It
If we are to define an inverter, it is simply a power electronic circuitry or device that is commonly used to change DC or direct current to AC or alternating current. You should know by now that the input and output voltage, the frequency, and also, the overall power handling, all these things are dependent on the structure of a specific circuitry or device. An inverter might be called a power electronic device but the thing is, it doesn’t produce power at all as the power is sourced from the direct current or DC source. According to experts, an invert can be wholly electronic, or it could be a mixture of electronic circuitry and mechanical effects like rotary apparatuses. There is what we call as a static inverter and this kind of inverter is known for not using any moving parts during the process of conversion. In some cases, you will find inverters being used in the application of electrical power that have very high voltages and currents as well as those circuits performing the same function for electronic signals with very low voltages and currents. The opposite of an inverter is a rectifier and the job of this device is to convert alternating current into direct current.
There are other things that you have to be aware of regarding inverters such as that the normal ones require a relatively stable direct current power source that is capable of providing sufficient power for the projected electricity demand by the system. When it comes to input voltages of the inverter, it will depend on the purpose and design of the device. You may not know about it but depending on the circuit design of the inverter, it is capable of producing a sine wave, a pulse width modulated wave or PWM, reformed sine waves, and a square wave as well. It is stated that majority of the standard inverters that we have today are producing waves that are quasi-square, or perhaps, square waves. When it comes to measuring the transparency of the sine wave, this will be done by THD. For instance, a square wave that has a duty cycle of fifty percent, is equivalent to a sine wave that has forty-eight percent THD. These days, power distribution grids for commercial use are following a technical standard which mandates that less than three percent of THD in the shape of the wave must be sent to the connection point of consumers.
Other than the things we mentioned above, there are still more that you need to know regarding inverters like how they change direct current from a battery into traditional alternating power which you can use in operating various kinds of devices.