DC Loads

Lab Supplies

DC/DC Converters

DC/AC Inverters

AC/DC Converters

Linear Supplies

Battery Cargers

Prewired Systems

Custom Built

Rail Industry

Site Map

Electronic Loads are devices for the testing of dc sources such as power supplies, batteries, fuel cells etc. These Electronic Loads act as a load bank by drawing out dc current or power from the device being tested, and dissipating it either as heat or via an inverter back into the mains (power recycling load).

Electronic DC Loads can be operated in Constant Current, Constant Power, Constant Voltage and Constant Conductance (1 / Resistance) modes.

All Zentro-Elektrik Electronic Loads are dynamic which means they can be set to two different thresholds and then automatically cycle between the two levels at up to 30kHz.

The Electronic DC Loads which CP Power & Automation Ltd supply all have analogue remote control and monitoring as standard, and via the use of an option card can be fitted with an IEEE488.2 interface, which comes complete with LabVIEW drivers, enabling serial communication and networking of up multiple units to a host PC. In addition RS232 and RS485 can also be used.
In terms of power these Electronic Load units range from 200W up to 20kW as standalone units, and load modules can then be linked to form systems capable of up to 100kW. Voltages of 0 to 800Vdc can be catered for, and currents from 0 to 2000A. All load units are available for bench top use or for integration into rack mounted systems.

When testing fuel cells and some power supplies there is often the requirement for full power to be drawn at very low voltages (sometimes as low as zero volts). For this purpose Zentro have developed several Zero Volt Loads whereby an additional power supply is incorporated to jack up the internal voltage and fool the Electronic Load into thinking that a higher dc voltage is present.