- Overview
- All Models
- Support
Ideal power source for teaching labs
Keysight NB1-class Essential benchtop DC power supplies include the EDU36311A, which is a triple-output power supply with a compact design. You can control and view its three independent outputs simultaneously with its 7-inch color display, which is ideal for teaching labs. With Keysight power supply control and automation software, you can easily connect, control, and capture measurements remotely. Request a quote or order a Keysight Essential benchtop DC power supply today.
Triple output channels
Three independent channels enable engineers to power several circuits simultaneously.
High accuracy and low noise
Delivers precise, stable power with line and load regulation under 0.01% for voltage and 0.2% for current.
Built-in protection features
Overvoltage, overcurrent, and overtemperature protection ensure safety and reliability in your test lab.
Intuitive and easy-to-use
A 7-inch color display with color-coded, user-friendly controls makes it easy for engineers to correlate on-screen readings with outputs.
-
Maximum power
90 W
-
Maximum current per output
5 A
-
Maximum voltage per output
30 V
-
Number of outputs
3
-
4-wire remote sense
No
-
Up / down programming settling time
80 ms
-
Arbitrary waveform generation
No
Typical configuration
NB1-class Benchtop DC Power Supply, 3 outputs
Services and support
Innovate at speed with curated support plans and prioritized response and turn-around times.
Get predictable, lease-based subscriptions and full lifecycle management solutions—so you reach your business goals faster.
Experience elevated service as a KeysightCare subscriber to get committed technical response and more.
Ensure your test system performs to specification and meets local and global standards.
Make measurements quickly with in-house, instructor-led training, and eLearning.
Download Keysight software or update your software to the newest version.
Frequently asked questions
A triple-output DC power supply provides three electrically isolated outputs, offering flexibility for a wide range of electronics testing and development applications. These outputs can be used in the following ways:
1. Connecting in series for higher voltage (up to 66V)
By connecting two or more outputs in series, you can increase the total voltage available for testing. This is useful when testing high-voltage circuits, such as power amplifiers, motor drives, and industrial control systems. For example, if each output provides up to 32V, you can connect two outputs in series to achieve up to 66V while maintaining precise voltage control and regulation.
Benefits:
- Supports high-voltage testing without needing a separate high-voltage power supply.
- Provides adjustable voltage levels for testing different device requirements.
- Enables battery stack simulation, essential for electric vehicle (EV) battery and energy storage testing.
2. Connecting in parallel for higher current (up to 7A)
When testing high-current devices, such as power-hungry embedded systems, RF amplifiers, and IoT devices, you can connect multiple outputs in parallel to increase the total available current. This is especially valuable for load testing, battery charging applications, and power-intensive circuits. For example, if each output provides up to 3A, two outputs in parallel can deliver up to 7A with precise current control.
Benefits:
- Ensures stable power delivery for devices requiring high current.
- Reduces the need for a dedicated high-current power supply.
- Supports testing of DC-DC converters, LED drivers, and power semiconductors.
3. Powering multiple circuits or devices simultaneously
Since all three outputs are independent and electrically isolated, you can use them to power multiple devices at the same time without interference. This is beneficial for mixed-signal testing, where you need to provide different voltage levels to digital, analog, and RF components.
Benefits:
- Reduces the number of power supplies needed on the test bench.
- Provides independent voltage and current control for multiple DUTs.
- Supports complex system validation, including embedded system testing, power electronics validation, and multi-rail circuit development.
To protect both the power supply and your devices, a DC power supply includes:
- Over-voltage protection (OVP)
- Over-current protection (OCP)
- Over-temperature protection (OTP)
These are essential features in a DC power supply because they help safeguard both the device under test (DUT) and the power supply itself. Overvoltage protection ensures that the output voltage does not exceed a specified limit, which is critical for preventing damage to sensitive electronic components. Overcurrent protection limits the output current to a safe level, reducing the risk of overheating or destroying the DUT, especially in scenarios like short circuits or sudden load changes. Overtemperature protection prevents the internal components of the power supply from reaching unsafe temperature levels, which could lead to failure or permanent damage.
These built-in safeguards also enhance system reliability and reduce the risk of costly downtime by minimizing the likelihood of electrical faults. Additionally, they contribute to user safety by helping to prevent potential hazards such as electric shock or fire. Overall, these protections are vital for maintaining the safety, longevity, and dependable performance of both the power supply and the devices it supports.
A large color display on a DC power supply is an important feature for a teaching lab because it enhances visibility, clarity, and ease of use, especially in a learning environment where multiple students may be viewing the same instrument. The display makes it easier to read key parameters such as voltage, current, and power levels at a glance, which helps students quickly understand how the power supply is behaving.
Color coding can further aid comprehension by clearly distinguishing between active channels or highlighting warnings and protection statuses. This visual feedback helps reinforce concepts and reduce errors during experiments. Additionally, an intuitive graphical interface simplifies navigation and setup, making it easier for students, especially beginners, to operate the equipment confidently and focus on learning the underlying principles rather than troubleshooting instrument settings.