Answerer of this article: KINRI

1. What are converters and inverters

Converters and inverters are both power electronic devices used to control the changes in power signals and achieve the collection, transmission, and transformation of power. Converters are typically used to convert different voltage or current types, while inverters are devices that convert direct current into alternating current.

2. Principles of converters and inverters

The main principle of a converter is to use energy storage components such as inductors, capacitors, etc. to store and convert the energy of the power supply. Inverters, on the other hand, use switching components such as transistors to high-frequency switch the DC power supply, control the magnitude and direction of the current, and thus achieve the conversion from DC to AC.

3. Differences and applications between converters and inverters

Different application fields

Transformers are mainly used in industrial control, wireless communication, photovoltaic power generation and other fields. Common converters include step-up converters, step-down converters, and converters; Inverters are mainly used in the fields of power electronics, household appliances, etc. Common inverters include solar inverters, UPS inverters, generator inverters, etc.

Different current types

The converter can convert direct current into alternating current, and can also increase or decrease the voltage of direct current; The inverter can only convert direct current into alternating current, and has no effect on boosting or reducing voltage.

Different ways of controlling voltage and current

The converter usually uses PWM modulation to control voltage and current, which can achieve precise control and is suitable for various types of load voltage; The inverter adopts SPWM modulation method, which has high efficiency, low noise and fluctuations, and better stability and adaptability.

Conclusion

Although converters and inverters are both power electronic devices, their functions and principles are different, and they are applied in different fields. Through the introduction in this article, readers can better understand their differences and applications, providing reference for practical applications.