Electronic Load

In the past, power supplies were tested using resistors and light bulbs. However, this method was imprecise and time-consuming. Modern technology has enabled the development of electronic loads, which significantly improve measurement accuracy. These devices provide fast and efficient analysis of power supply parameters, which is especially important for laboratories and industrial facilities.

How an Electronic Load Works

An electronic load consists of:

• Transistors that absorb electrical energy and convert it into heat.

• Cooling systems to prevent components from overheating.

• A control unit that sets the required load parameters.

The basic operating principle is the conversion of energy into heat. The higher the load power, the more heat is generated—requiring effective heat sinks and fans. For example, a 100 W load may use compact heatsinks, while a 1000 W load requires more advanced cooling systems with active ventilation.

Where Electronic Loads Are Used

Electronic loads are used in:

• Workshops and labs – for diagnosing electronic equipment

• Battery testing – to determine remaining capacity and discharge time

• Power supply verification – to measure voltage and output stability

• Stabilizer and generator evaluation – to test load-handling capability

• Solar panel research – to assess efficiency and performance under variable loads

These devices help analyze voltage, current, and power consumption, making them indispensable in the field of electrical engineering.

Types of Electronic Loads

By current type:

• DC electronic loads – used for batteries and DC power supplies

• AC electronic loads – used for testing inverters, UPS systems, and transformers

By functionality:

• Basic models – measure essential parameters like voltage, current, and power

• Advanced units – offer additional features such as:

  • Computer connectivity for data transfer and analysis

  • Dynamic testing to simulate variable loads

  • Short-circuit emulation (SC) for stress testing in fault conditions

  • Pulsed mode for evaluating batteries and power supplies under changing loads

Where to Buy Electronic Loads in Ukraine

You can purchase electronic loads from our online store: sea-tm.com.ua. We offer a wide selection of models for various needs — from lab research to industrial applications. Additionally, you can receive professional consultation to help choose the right device based on your specific requirements and technical criteria.