The BK Precision HVL80075 High Voltage DC Electronic Load offers an operating voltage up to 800 V and high power density providing 3 kW in a 3U form factor. Suitable for ATE system applications, this electronic load supports a variety of dynamic loading conditions for evaluating DC-DC converters, batteries, battery chargers, photovoltaic arrays, and other high power DC sources.

In addition to CC/CV/CR/CW operating modes, the HVL Series features continuous, pulse, and toggle transient operations to precisely switch between two load levels. Advanced list mode programming makes it easy to set up and execute complex load sequences from the front panel. For applications requiring more power, up to 10 identical HVL Series models can be combined in parallel to increase total sink capabilities.

Operating software provides remote instrument control and monitoring from a PC. Separate battery test software simplifies battery discharge testing with data logging. Built-in remote PC interfaces include USB (USBTMC-compliant), LAN, RS232, and GPIB supporting SCPI commands. The front panel USB host port enables data logging directly to a connected flash drive.

Advanced List Mode

The HVL Series list mode is highly configurable for generating precise load sequences. Each list mode program contains up to 100 user programmable steps. Save up to 10 list mode programs directly to internal memory for quick recall. Step parameters include current limit, step duration, and slew rate. List mode programs can be set to repeat a maximum of 100,000 times. BOST / EOST (Beginning / End of step Trigger) can be enabled for any step in the list to generate output triggers for synchronizing events with other externally connected instruments. List mode programs can be configured and run from the front panel or remotely using the provided application software.

Direct Data Logging

Log voltage, current, or both at a user-defined sampling interval adjustable from 0.2 seconds to 5 minutes directly to an external USB flash drive. Data points are saved as a CSV file with date and time stamp.

Transient Operation

Transient operation enables the DC load to periodically switch between two load levels.

Continuous - Switch continuously between A and B load current levels where rise/fall slew rates and level width can be adjusted

Pulse - Upon enabling the input, the load executes one pulse cycle returning to Level-A, and waits to receive a trigger signal before executing another pulse

Toggle - The DC load current will switch between Level-A and Level-B following receipt of a trigger signal

Rise and Fall Time Measurement

The HVL Series can measure the rise or fall time from a specified start and stop voltage level of the measured input without the need for an external oscilloscope. Rise time is measured based on the two user-configured voltages. The resulting rise/fall time measurement is displayed on screen with 0.1 s resolution.

Parallel Operation

For applications requiring more power, up to 10 identical HVL Series dc load models can be connected in parallel to increase the maximum sink power. Once configured, the connected units will display voltage and current of the complete system.

Low Voltage Operation

The HVL Series can operate at low voltages for applications in fuel cell and solar cell testing.

Application Software

PC software is provided for generating and executing test sequences and measurement data logging without the need to write source code. Log voltage, current, power measurements and export data in spreadsheet format for further analysis. Configure and run transient operation, list mode, and more.

Battery Test Software

Supplementary PC software available simplifies battery testing with the ability to create discharge sequences and log data. Couple the HVL Series with a compatible external power supply, to perform battery charge/discharge cycle tests on batteries.