What is DC Regulated Power Supply?

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What is a regulated power supply? How to select a DC regulated power supply?

What is DC Regulated Power Supply?

A regulated power supply (also known usually as a linear power supply) ensures that the output current remains constant, even if the input changes, by converting unregulated AC (alternating current) to a constant DC (direct current).

Why do you need a bench power supply which is regulated?

A bench power supply can be used to power individual circuits before they are finished. So, they prove to be a practical tool for testing and experimenting by providing a reliable source of power at varying voltages. They make your life simpler by enabling you to test your circuit designs and ideas quicker and easily, since you do not need to have a specific power supply for each project that you want to or have to test.
A regulated power supply ensures that the output supply is balanced even when the input load varies.

Metravi RPS-3005 DC Regulated Power Supply being used for PCB circuit testing

Most common applications include:

  • Testing Circuits
  • Testing mobile phone chargers
  • Regulated power supplies in different appliances
  • Various oscillators & amplifiers
  • Audio visual applications

What should you look for in a regulated power supply?

Before deciding to purchase, consider the following features as per your needs:

Using the Metravi RPS-3005 DC Regulated Power Supply

Maximum Voltage and Current Required

Check what is the maximum voltage and current you require and select the model accordingly. Ideally, it should be able to power and test most of your projects. When you supply the circuits with some voltage, your regulated power supply should be able to keep up with the current drawn.

CC / VC Protection

CC/VC (Constant Current / Constant Voltage) Protection allows you to set a safe current and voltage limit to protect your components or circuits. This feature is one to look for, especially if you are a beginner or amateur.

Number of Output Channels

Generally, a single output channel covers the testing requirement and will be relatively more affordable. Regulated power supplies with dual and triple outputs cost more relatively but are required if you need multiple supplies simultaneously.

Linear vs Switching

Though switching power supplies tend to be lighter and more compact, linear power supplies are best suited for powering analogue circuitry because they have lower electrical noise.
linear power supply uses a transformer to drop voltage from an AC line to a much lower AC voltage, and then uses a series of rectifier circuitry and filtering processes to produce clean DC voltage.

Short Circuit Protection

Check for short-circuit protection so that even by accident, excessive currents or currents larger than the acceptable current rating do not damage the unit and keep you protected too.

Low Ripple

Ripples are caused due to incomplete suppression of the alternating waveform, due to improper current rectification process. Hence, these ripples are wasted power which can have varied undesirable effects in a DC circuit. They can heat components, cause noise and distortion or even cause the digital circuits to operate unexpectedly. Ensure that the Ripple is as low as possible, so that you get pure ripple-free DC waveform.

Metravi RPS-3005 DC Regulated Power Supply being used for current conducting testing and measurement

Metravi offers a wide range of DC Regulated Power Supplies, backed by a year’s warranty against manufacturing defects.
Model NoInput VoltageOutput VoltageOutput CurrentOutput Channels
RPS-3002220V/ 110V0 to 30V0 to 2ASingle
RPS-3002-2220V/ 110V0 to 30V0 to 2ADual
RPS-3003-3220V/ 110V0 to 30V0 to 2ATriple
RPS-3005220V/ 110V0 to 30V0 to 5ASingle
RPS-3005-2220V/ 110V0 to 30V0 to 5ADual
RPS-3005-3220V/ 110V0 to 30V0 to 5ATriple
RPS-3010230V0 to 30V0 to 10ASingle
RPS-3020230V0 to 30V0 to 20ASingle
RPS-3030220V/110V0 to 30V0 to 30ASingle
RPS-6002220V/110V0 to 60V0 to 2ASingle
RPS-6005220V/ 110V0 to 60V0 to 5ASingle
RPS-6010230V0 to 60V0 to 10ASingle
RPS-6020220V/ 110V0 to 60V0 to 20ASingle
RPS-6030220V/ 110V0 to 60V0 to 30ASingle

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