Transistorised Inverters
Q. What is transistor inverter?
Q. Why are transistors used in inverters?
Q. How to Build an Inverter with a Transistor
- The transistorised inverters use power transistors as power switches.
- The configurations which will be discussed in this section by by replacing the power by transistors power MOSFETS or IGBTS.
- For all these devices, the commutation circuits are not required. They can be turned off very easily just by removing their base or gate driving waveform.
- The output voltage waveforms of ideal inverters should be sinusoidal. However the waveforms of practice harmonics inverters are non-sinusoidal and contain certain harmonics.
- For low and medium power applications square wave or quasi square voltages may be acceptable and for high power applications low distortion sinusoidal waveforms are required.
- With the availability of high speed power semiconductor devices the harmonic contents of the output voltage can be minimized or reduced significantly by special switching techniques.
