SMPS Power Supply Units

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SMPS or Switched mode power supply is an electronic power supply that efficiently converts electrical power. SMPS employs a switching regulator that enables the pass transistor to switch between low-dissipation, full-on and full-off states, and thus reduces energy wastage by minimizing high dissipation transitions. This desktop power supply technology transfers power from a DC or AC source to DC loads, while simultaneously altering voltage and current characteristics.

An Switched mode power supply comprises several basic components, including an input rectifier and filter, an inverter, a transformer, an output rectifier and filter, and a feedback and control circuit. The inverter typically consists of switching devices such as MOSFETs. The primary idea behind an CPU power supply SMPS is that regulation is managed by using a switching regulator with a series switching element that controls the current supply to a smoothing capacitor.

SMPS offers numerous advantages over linear power supplies, such as higher efficiency ranging from 68% to 90%, regulated and dependable outputs irrespective of input voltage fluctuations, and smaller size and weight. Thanks to its adaptability, low cost, and efficiency, PSU computer SMPS is widely used in modern applications, particularly in electronic equipment like computers and other sensitive devices requiring stable and efficient power supplies.

SMPS Comparison Chart: Voltage, Current & Efficiency

SMPS Model	Output Voltage	Max Output Current	Estimated Efficiency
5V 5A SMPS	5V DC	5A	80% – 90%
5V 10A SMPS	5V DC	10A	80% – 90%
12V 5A SMPS	12V DC	5A	85% – 90%
12V 10A SMPS	12V DC	10A	85% – 90%
12V 15A SMPS	12V DC	15A	85% – 92%
24V 2A SMPS	24V DC	2A	80% – 88%
24V 5A SMPS	24V DC	5A	85% – 90%
24V 10A SMPS	24V DC	10A	85% – 90%

Industrial vs Hobby-Grade SMPS Units

SMPS Product	Output Voltage / Current	Build / Features	Classification	Typical Use
12V 10A SMPS - DC Metal Switched Mode Power Supply	12 V / 10 A	Metal casing, moderate heat dissipation, basic protections	Industrial-grade	Motors, LED arrays, control systems, small automation, continuous use
12V 5A DC Power Supply SMPS	12 V / 5 A	Plastic/metal casing, basic protections	Industrial-grade / Mid-range	Small automation, SBC clusters, LED drivers, light industrial tasks
12V 2A AC to DC - Switch Mode Power Supply Module (SMPS) PCB	12 V / 2 A	Bare PCB, minimal protections	Hobby-grade	Microcontrollers, sensors, LED strips, small DIY projects
5V 2A SMPS	5 V / 2 A	Compact, plastic casing	Hobby-grade	Raspberry Pi, Arduino, low-power sensors, small electronics
24V 2A SMPS	24 V / 2 A	Plastic casing, moderate protections	Hobby-grade	Small robotics, LED strips, prototyping, low-current devices
5V 5A SMPS	5 V / 5 A	Plastic or metal casing, basic protections	Hobby-grade	SBC clusters, LED projects, sensor arrays, DIY electronics
24V 5A SMPS	24 V / 5 A	Plastic/metal casing, moderate protections	Hobby-grade / Light Industrial	Medium-power LED strips, small automation, hobby robotics

Maintenance Tips

Keep it cool: Ensure proper ventilation around the SMPS. Avoid covering it or placing it in confined spaces to prevent overheating.

Avoid dust accumulation: Regularly clean dust from vents, fans, and PCB surfaces to prevent insulation breakdown or heat buildup.

Use stable input voltage: Avoid frequent voltage fluctuations or surges. Consider using a surge protector or line stabilizer.

Prevent overload: Do not exceed the rated output voltage/current. Overloading can permanently damage internal components.

Check wiring connections: Ensure all input and output connections are tight and secure to avoid sparking or voltage drops.

Avoid moisture: Keep SMPS away from water, high humidity, or condensation to prevent short circuits and corrosion.

Inspect capacitors periodically: Electrolytic capacitors can degrade over time; check for bulging, leakage, or discoloration.

Allow warm-up cycles: For high-power SMPS, allow it to warm up gradually instead of sudden heavy loads.

Turn off when not in use: Disconnect or switch off SMPS if the connected load won’t be used for long periods.

Regular load testing: For industrial or critical applications, periodically verify output voltage and current under load.

Use appropriate enclosures: For DIY or open‑PCB SMPS, consider metal or insulated enclosures to prevent accidental contact and physical damage.

Keep cables short and proper gauge: Use wires of appropriate thickness to minimize voltage drop and heating.

Avoid repeated on/off cycles: Frequent switching can stress components like capacitors and relays inside the SMPS.

Related Searches

Popular Searches

SMPS Type	Price
12V 2A SMPS	Rs. 249 /-
12V 15A Power Supply SMPS	Rs. 825/-
12V 5A SMPS	Rs. 409/-
5V 5A SMPS Power Supply	Rs. 499/-
24V 5A SMPS Power Supply	Rs. 725/-
5V 10A SMPS Power Supply	Rs. 589/-
12V 10A SMPS Power Supply	Rs. 579/-
24V 2A SMPS Power Supply	Rs. 589/-
24V 10A SMPS Power Supply	Rs. 1049/-
5V 2A SMPS Power Supply	Rs. 219/-

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