Power supplies provide the voltage and current required for electronic circuits and equipment to operate correctly. Studying them involves everything from basic rectification and filtering processes to voltage regulators, adjustable power supplies, and electronic converters.
Alex Baroni creates content about power supplies and electronic power systems by combining circuit fundamentals, measurements, assembly, testing, and practical workbench applications.
Power Supply Fundamentals
A power supply must deliver electrical energy under conditions suited to the circuit it powers. Voltage, current, power, stability, efficiency, and protection are some of the important aspects involved in understanding how it works and selecting an appropriate power supply for a specific application.
Fundamentals in practice: Building a Simple Power Supply and Battery Charger — follow a simple build to gain a practical understanding of basic circuit power concepts, voltage, current, and power supply construction.
Rectification and Filtering
In power supplies that convert alternating current into direct current, diodes can be used in the rectification stage and capacitors can reduce variations in the rectified voltage. These stages are important fundamentals in the study of power supplies.
Practical application: How to Reuse the Power Supply from an FM Radio: Capacitors, Voltage Regulation, and Improvements — learn how to analyze and improve an existing power supply by working with filtering, capacitors, and voltage regulation in a practical application.
Voltage Regulators
Regulators control and stabilize the voltage supplied to a circuit. Different solutions are available, from linear regulators to adjustable circuits, and are selected according to requirements such as voltage, current, power dissipation, and efficiency.
Voltage regulation in practice: LM2596 Voltage Regulator for Arduino: How to Build a Variable Power Supply — explore a practical application of the LM2596 for voltage regulation and the construction of a variable power supply for electronic circuits.
Adjustable and Bench Power Supplies
An adjustable power supply makes it possible to vary the output voltage according to the requirements of tests, assemblies, and experiments. For this reason, bench power supplies are especially useful tools for developing and troubleshooting electronic circuits.
Adjustable power supply in practice: Homemade XL4016 Power Supply: How to Build an Adjustable Step-Down Supply — learn how to use the XL4016 module to build an adjustable power supply for workbench testing, assembly, and experimentation.
Converters and Switching Power Supplies
Electronic converters change voltage levels using switching techniques. Step-down configurations, also known as buck converters, efficiently reduce an input voltage and are used in many electronic applications.
Switching power supplies in practice: Switching Power Supply for LiPo, Lead-Acid, and Other Battery Chargers — explore a practical application of a switching power supply used to power battery chargers, connecting voltage, current, and power supply selection with different applications.
Projects, Assembly, and Testing
Building, modifying, and testing power supplies makes it possible to observe concepts such as rectification, filtering, regulation, current, power, efficiency, and voltage behavior under different load conditions.
Practical project: How to Build a Homemade Variable Power Supply with a Voltmeter and Ammeter — follow the construction of a variable power supply with integrated measuring instruments, combining assembly, voltage adjustment, current monitoring, and practical workbench use.
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This content is part of the Electronics and Projects section, which features articles about circuits, components, workbench equipment, instrumentation, power supplies, audio, amplifiers, and electronics projects.