What is a 12v power supply, and How is it Used?
Tech

What is a 12v power supply, and How is it Used

12V power supply is an electrical device that converts voltage from a single-phase mains to a more consistent voltage. They are commonly used in various types of electronics, including process controls, communications, low-voltage lighting, alarms, and vehicles. They are often used in vehicle applications, with the input type known as DC-DC converters, which operate on the vehicle battery. Other 12V power supply applications include radio communications equipment. 

Other devices that require a 12V power supply include cellular phones, GPS navigation units, laptops, and tablets. Some of these devices use 12V DC adapters that can be plugged into any wall outlet. The adapters are usually plugged and play, with a variety of output voltages and amperages. It’s important to choose the correct type of 12V power supply for your needs. If you’re using the 12V power supply for an electronic device in your car, make sure you know its specifications and look for a converter with a range of voltage and amperage output. 

What Are the Uses of a 12V Power Supply?

What are the uses of a 12V power supply? These types of power supplies are used for a variety of applications, including computers, network switches, telecommunications, fiber optic networks, analog and voice communications, instrumentation, and power industries. In addition, these supplies are often used for motor control and other applications where a constant supply of electricity is needed. Let’s take a closer look at some of these uses.

  • Cars

Depending on your application, you may wish to use a 12V power supply in your car. 12V power supplies are great for electronics like GPS navigation systems, DVD players, and entertainment devices that run on 12 volts. You can even use a 12V power supply in your vehicle if you regularly use it. You should research what your intended use is for your 12V power supply and determine whether you’ll need it for a short or long period of time.

  • LEDs and microcontrollers

LEDs and microcontrollers are often powered by a 12V DC power supply. If you’re looking to make a 12-volt microcontroller circuit, you can replace the existing male barrel jack with a male barrel jack. You’ll need a soldering iron, solder, and general soldering accessories to make the circuit work. In addition to a 12V DC power supply, a 12-volt DC power supply can also be used to power a transistor.

What to Look For in a 12V Power Supply?

  • Current Rating

When determining which power supply to buy, the current rating is an important factor. The current rating should be higher than the total maximum current requirement of all connected units. This prevents a power supply from putting extra stress on the system. Power supplies manufactured by certain manufacturers will include the current rating on the product data-sheet. If the power supply is not labeled with a current rating, it is possible to obtain it by calling the manufacturer or looking at the product data-sheet.

  • Regulation

A typical 12V power supply is either linearly regulated or in switching mode. The latter regulates the output voltage by a high-frequency switching process. It uses pulse width modulation to manage output voltage. It also has a significant amount of EMI filtering, which reduces line noise and load noise. Its galvanic isolation also helps it be versatile, and it provides input to output ground insulation.

  • Polarity

It’s also important to note the polarity of the output plug. Although most power supplies have labeled rating information, you must be sure to follow these instructions. If you plug a power supply into a device that doesn’t work properly, it can ruin the circuit. In most cases, the positive tip is on the left, and the negative tip is on the right. Positive tip polarity indicates that the center of the output plug is positive, while a negative tip indicates the opposite.