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Classification introduction

What Are Power Supplies - External/Internal (Off-Board)?

Power supplies are devices designed to provide electrical energy to electronic circuits, equipment, or systems. The "external/internal (off-board)" category encompasses both standalone external power supplies and integrated solutions mounted externally to the main circuit board. These devices convert electrical energy from one form (typically AC mains power) to another form suitable for the end device, such as DC voltage. External power supplies are often enclosed in their own housings, while off-board internal units are located within the system's chassis but separate from the main PCB.

Functions of Power Supplies - External/Internal (Off-Board):

Voltage Conversion: Transforming AC mains power into regulated DC output voltages required by electronic devices.

Stabilization: Providing consistent power to prevent fluctuations or noise that can damage sensitive components.

Energy Efficiency: Many modern power supplies incorporate features like power factor correction (PFC) and efficiency optimization to meet regulatory standards and reduce energy consumption.

Isolation: Protecting connected devices from potential power surges or electromagnetic interference (EMI).

Safety: Built-in protection mechanisms like overcurrent, overvoltage, and thermal shutdown to ensure safe operation.

Applications of Power Supplies - External/Internal (Off-Board):

Power supplies, both external and internal, find applications across a broad spectrum of industries and devices:

Consumer Electronics: Used in laptops, gaming consoles, TVs, and home appliances.

Industrial Automation: Supplying power to programmable logic controllers (PLCs), sensors, and industrial machinery.

Medical Devices: Providing regulated power to equipment like diagnostic machines and patient monitoring systems, often requiring compliance with stringent safety standards.

Telecommunications: Powering network devices such as routers, modems, and base stations.

Automotive Systems: Supporting infotainment systems, advanced driver-assistance systems (ADAS), and electric vehicle (EV) chargers.

IoT and Embedded Systems: Delivering reliable power to low-power IoT nodes, edge devices, and microcontroller-based platforms.

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