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The EEZ Bench Box 3 (BB3) represents a new category of modular Test and Measurement (T&M) equipment. It provides a complete hardware and software framework that bridges the gap between – and combines the best features of – DIY hobbyist tools and professional benchtop equipment. BB3 was inspired by the EEZ H24005 power supply, which attracted many enthusiasts with its broad feature set, rich user interface, DIY friendliness, and fully open source design. BB3 will initially ship with modules that provide the same functionality as the H24005, but those modules will be slotted into a device that also delivers improved modularity, enhanced flexibility, greater capacity, and more processing power.
Our campaign will allow backers with different backgrounds, interests, and budgets to configure their BB3 however they like. Get a bare PCB set or add a custom-made enclosure. Add the three core modules, if you like, and you’ll have an Almost-Ready-To-Run (ARTR) bench box into which you can slot one of our power modules. We’re going for maximum flexibility, here.
|Number of Outputs||Single||Single||Dual|
|Floating Outputs||Yes||Yes||Yes (with on-board common GND)|
|Topology||Buck pre-regulator with linear post-regulator||Buck pre-regulator with linear post-regulator||Buck with CV/CC controls|
|Voltage Range||0 – 40 V||0 – 40 V||0 – 20 V|
|Current Range||0 – 50 mA / 0 – 5 A||0 – 50 mA / 0 – 5 A||0 – 4 A|
|Max. Power||155 W||155 W||140 W|
|Voltage Programming and Readback Resolution||10 mV||10 mV||10 mV|
|Current Programming and Readback Resolution||2 uA / 2 mA||2 uA / 2 mA||20 mA|
|Remote Sensing Reverse Polarity Protection||Yes||n/a||n/a|
|HW (crowbar) OVP||Yes||No||No|
|SW Protections||OVP / OCP / OTP / OPP||OVP / OCP / OTP / OPP||OVP / OCP / OTP / OPP|
|Reverse Polarity Power Output Protection||Yes, fused||Yes, not fused||Yes, not fused|
|Outputs Coupling||Common GND / Split rails / Series / Parallel||Common GND / Split rails / Series / Parallel||Common GND|