what is a load equalizer

A load equalizer is a small but essential device used in electrical circuits to regulate the amount of current flowing through each branch of the circuit. It is widely used in various electrical applications, including automobiles, aircraft, power distribution systems, and other industrial settings. In this article, we will explore the basic functioning and application of a load equalizer.

How does a Load Equalizer Work?

A load equalizer is designed to distribute current evenly throughout various branches of the circuit. It is essentially a resistor that is connected in parallel with a load, such as a light bulb or an LED. Sometimes, the resistance of the load changes according to the temperature or other external factors, leading to an unequal distribution of current in the circuit. To prevent this from happening, a load equalizer is added to balance the current flow between parallel branches in a circuit, ensuring that each branch is supplied with the same current.

Types of Load Equalizers

There are various types of load equalizers available in the market, depending on the application and the current rating of the circuit. Some common types of load equalizers include resistive load equalizers, active load equalizers, and passive load equalizers. Resistive load equalizers are simple devices that use resistor banks to regulate current flow. Active load equalizers use electronic components such as transistors and amplifiers to maintain a steady current despite variations in resistance or input voltage. Passive load equalizers use only passive components such as capacitors, inductors, and resistors.

Application of Load Equalizers

Load equalizers are commonly used in automotive applications. For instance, when upgrading from incandescent bulbs to LED headlights or tail lights, the reduced power demand of LED bulbs can cause hyper-flashing or fast blinking. This occurs because the vehicle's turn signal flasher is designed to operate correctly only with the higher power draw of incandescent lights. A load equalizer can be installed in the circuit to provide the necessary load for the flasher to function correctly.Load equalizers are also used in aircraft avionics, power distribution systems, and other industrial applications that require a balanced current flow. In power distribution systems, load equalizers help regulate the power demand and supply balance between different loads, preventing overloading and circuit failure.

Conclusion

In conclusion, a load equalizer is a crucial component that ensures a balanced current flow in electrical circuits by regulating the amount of current flowing through each branch. Its application is widespread, and it is commonly used in various electrical systems, ranging from automobiles to aircraft and industrial control systems. Whether it's LED headlight upgrades or power distribution systems, load equalizers play a critical role in maintaining proper performance and preventing circuit failure.