There are different types of voltage regulators to maintain electrical voltage in a closed circuit. This is key because, in everyday life, electronic equipment constantly interacts with lighting systems through electrical charges. The way to keep these charges stable, ensure the correct operation of the equipment, and prevent damage to its components is to use voltage regulators. Hence, the importance of knowing and choosing the right type.
What is a voltage regulator and what is it for?
In simple terms, voltage regulators can be defined as devices that maintain the voltage at a constant level within an electrical circuit. In other words, the voltage regulator or stabilizer receives the “contaminated” electrical voltage (variable range) and transforms it into a “clean” (defined range) and constant voltage.
This is a key point because electrical equipment is designed to operate within a defined voltage range, and when the electrical voltage is poorly regulated, it is likely to affect the performance of the devices.
How do voltage stabilizers work?
To simplify the process, voltage regulators can be said to operate in three stages:
- They detect the voltage or electrical tension in the network.
- They compare this input voltage with a predefined reference value.
- If the input electrical voltage is higher or lower than the reference value, the stabilizer makes adjustments to correct the difference.
This is done thanks to a control board inside the regulator, which measures the voltage of the electrical current from the plug. If a low voltage is detected, the stabilizer connects to the step-up stages of the autotransformer and manages to establish an optimal output voltage (for example, 220 V). Conversely, if the voltage is high, the regulator connects to the step-down stages of the autotransformer to maintain 220 V.
In this way, it keeps the voltage or electrical tension within a defined range, ensuring that the electrical devices connected to them function correctly.
What are the benefits of using a voltage stabilizer?
When voltage is not regulated, damage to the electronics of equipment often occurs. However, its use includes:
- Protection of electronic devices: by preventing voltage variations, the useful life of electronic systems is extended.
- Optimizes performance: electronic devices are more reliable and operate more efficiently with stable electrical voltage.
- Reduced costs: by preventing damage from voltage fluctuations, the costs of repairing or replacing electronic equipment parts are avoided.
Types of voltage regulators and their applications
There are different types of voltage regulators, each offering specific advantages and applications for the home, industry, commerce, and offices. The most common types of voltage controllers are presented below.
Linear voltage regulators
These are probably the simplest, most economical, and most common in the electronics industry. They use a variable resistor to control the output voltage. They generate a constant output voltage regardless of fluctuations in the input. Their applications extend widely to low-power power supplies and where efficiency is not a critical variable.
Switching regulators
Also known as DC-DC converters, these are the next level up from linear regulators. They use an electronic switch (switched element) to transform the input energy into a more stable and sustained form. They are more efficient than linear regulators and are therefore used in a wide range of applications, including renewable energy devices and high-power portable devices, but they are more expensive.
Series voltage regulators
In these stabilizers, the control element is located in series with the load, allowing the controller to maintain the output voltage at a constant level by varying the resistance in the circuit. They are extremely useful in applications where precise output voltage adjustment is required.
Shunt voltage regulators
Unlike the previous ones, in shunt voltage stabilizers, the control element is placed in parallel with the load, dissipating excess voltage in the form of heat. Although less efficient than series regulators, they are more powerful and improve the stability of the output voltage. Their applications range from household appliances to industrial systems, such as computers and printers, audio and video systems, refrigerators, motor control in automation systems, LED lighting systems, etc.
Ferroresonant regulators
These controllers use transformers to shape the output voltage. The transformer works in conjunction with a capacitor to produce electrical resonance and thus provide a stable voltage. They are robust devices that can handle huge voltage fluctuations such as those found in heavy industry, telecommunications systems, data centers, and medical equipment. However, more efficient, compact, and technologically advanced models are now available.
Electromechanical regulators
Electromechanical regulators work by means of mechanisms that move bearings to adjust the output voltage. They are robust and widely used in industrial, medical, and entertainment environments, as they protect health and laboratory equipment, computer and telecommunications systems, among others.
Electronic regulators
Electronic regulators are among the most compact and lightweight. They use electronic circuits to regulate the output voltage, making them perfect for sensitive electronic equipment that requires precise voltage modeling. They are most commonly used in computers, industrial equipment, automated lines, and CNC machinery (automated machines for manufacturing industrial parts using coded instructions).
Thus, the different types of voltage regulators are used in everything from white goods to entertainment equipment, medical and telephone equipment, and heavy industrial machinery. They are mainly used in systems that must operate continuously for long periods of time, or in equipment that must be protected due to its value.
However, a special section is devoted to the types of regulators for computers, due to their importance in both homes and businesses. Every computer system is made up of hundreds of electronic components that operate at very specific voltage levels. A single voltage spike outside the range is enough to damage a motherboard or processor, rendering the PC inoperable.
It is advisable to be cautious and connect the computer system and its peripherals to a multi-outlet computer voltage stabilizer, preferably with a surge protector and suppressor. The same applies to HD, LED, or 4K televisions and gaming consoles such as the Playstation 5 Pro and Xbox Series X.
How to choose the best voltage regulator for your needs?
To choose the right voltage controller, four key points must be considered:
- Decide which equipment you want to protect: the use, value, and importance can help determine this.
- Identify its consumption in volt-amperes or watts (W): each piece of equipment has a label on the back, on the power supply, or in the user manual that indicates its consumption in watts, usually a figure such as 120W or 250W.
- Choose a regulator with sufficient capacity to handle the power of that equipment: just as appliances have a maximum capacity, voltage stabilizers have a maximum power they can withstand. This value indicates how many devices can be connected to the regulator.
- Consider the energy efficiency and size of the device: these factors must be taken into account so that the regulator meets the specific needs of the user.
Keep in mind that the higher the capacity of the regulator, the more devices can be connected. However, it is recommended that only 70% of its capacity be used for extended periods of time to avoid overloading the controller.
Installation and maintenance of voltage regulators
The installation of a voltage controller must be performed by someone with basic electrical knowledge and follow these basic steps:
- Choose an enclosed location that is free of moisture, dust, and well ventilated.
- Unpack the regulator and keep it at room temperature for at least four hours.
- Read the user manual. Although this is often overlooked, it is important to know the details of the equipment you have purchased and the safety information.
- Connect the stabilizer according to the manual.
Maintenance
This equipment can receive two types of maintenance, which help prevent damage and keep the equipment running properly. The following actions are included in preventive maintenance:
- Check that the connections are free of wear and complete.
- Remove dust and dirt from the regulator.
- Verify that the connected load does not exceed the capacity of the regulator.
- Perform tests to verify that it is working correctly.
Corrective maintenance includes the following:
- Repair any deviations in the stabilizer.
- Replace damaged components with new, high-quality parts.
These actions will increase the service life of the voltage stabilizer, prevent future breakdowns, and ensure adequate protection for your devices and systems. Always remember to consult the manufacturer of your equipment before performing any type of maintenance.
At Industronic, you can find voltage stabilizers with state-of-the-art technology and the highest quality standards.
The AMCR line of electronic voltage regulators is reliable and offers a service life of more than ten years. Contact us and receive the advice you need to choose the best one for your requirements. Protecting high-value appliances is essential to maintaining their integrity, and the different types of voltage regulators are there to make that happen.
