Programmable Electronic Loads
What is a Programmable Electronic Load?
Electronic loads offer a useful means of absorbing electrical energy. Modern electronic loads are constructed by banks of High-Power FETs, attached to heat sinks. The FET's source and drain connections are connected to the external energy source. The FET's "ON" resistance is controlled by a microprocessor-controlled control system in such a way that it can arrange for the load to provide:
- Constant Resistance
- Constant Voltage
- Constant Current
How can Power Supplies and Solar cell Arrays be Tested?
A Programmable Electronic Load is able to change its resistive load value dynamically. This means that the load value can be changed under computer control to perform a sequence of tests to evaluate the performance of the power source.
In the past banks of power resistors or rheostats were connected to the power source to simulate a required load. Although they would in most cases provide a fixed resistance, the resistance could not be changed dynamically so their usefulness as a test facility was limited.
How are Electronic Load Banks Used?
The load bank is useful in the laboratory and production test environment for testing a wide range of equipment:
- Power Supplies
- Solar Cell Arrays
- Fuel Cells
- LED Display Panels (dedicated LED Loads are available for this)
- Motor and Power Drivers
Why Buy Electronic Loads from The Debug Store?
We have been supplying programmable electronic loads for many years. We have selected loads manufactured from specialist companies in the far east who are able to offer enhanced capabilities at reasonable prices. In many cases they are the chosen manufacturer used by many better named brands.
You benefit by getting better value for money!