Power Electronics

Power Electronics

The branch of electronics, which deals with the control of power at supply frequency (50 Hz or 60 Hz), is known as power electronics and it is one of the contemporary subjects of electrical engineering that has seen many advancements in recent times and has affected human life in almost all spheres. It is a hybrid of power engineering, analogue electronics, semiconductor devices and control systems. One major field of semiconductor devices has been to control large blocks of power flow in a system that has led to the development of power electronics. Such devices act as controlled switches and can perform the duties of controlled rectification, inversion and regulation of power in a load and the most important switching devices are thyristors or SCR (Silicon Controlled Rectifier), Triac (Triode for alternating current), Diac (Diode for alternating current), IGBT (Insulated Gate Bipolar Transistor), MOSFET (Metal Oxide Semiconductor Field Effect Transistor) and BJT (Bipolar Junction Transistor). Lastly, the electric energy in itself is not usable until it is converted into a tangible form of energy such as motion, sound, heat, light, etc. De Lorenzo has designed a complete laboratory, with industrial components mounted on didactic panels, that covers the main configurations of power electronic circuits such as AC to DC conversion (Rectifiers), AC to AC conversion (fixed AC to variable AC at same input frequency or to AC with variable frequency), DC to DC conversion (Choppers), DC to AC conversion (Inverters) and applications as DC and AC motor driving. They are dedicated to high schools and first years of university.

Products Details

AC-DC conversion
- Diodes and SCR

The AC to DC converters are called rectifiers circuits, which can be classified based on the type of AC source and the type of semiconductor switch is used; they are usually used in either single-phase or three-phase applications but multi-phase configurations or...

AC-AC conversion - TRIAC and phase control

The AC to AC converters are more complicated than the AC to DC converters because AC conversion requires change of voltage, frequency and bipolar voltage blocking capabilities, which usually requires complex device topologies. Converters that have the same fundamental input...

DC-DC conversion - Chopper and switching supplies

DC/DC converters are also known as Switching Regulators. The circuits will change the level voltage available from a DC source such as a battery, solar cell, or a fuel cell to another DC level, either to supply a DC load or to be used as an intermediate voltage for an adjacent power electronic...

DC-AC conversion - Inverter and frequency converters

DC/AC converter, also described as “Inverter”, is a circuit that converts a DC source into a sinusoidal AC voltage to supply AC loads, control AC motors, or event connect DC devices that are connected to the grid. Similar to a DC/DC converter, the input to an inverter can be a...

DC and AC motor driving

The power electronics field has become an important topic in the electronics industry and the information technology area (telecom products and electronic consumer appliances requiring many power electronics sub-systems). Typical power electronics applications include electronic ballasts...

Modules for the configurations

Power Electronics laboratory is used in studies of technological systems and its modules can be decomposed into a number of components that can be mixed and matched into a variety of configurations. The components are able to connect, interact in some way, by adhering to...

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