Buyer’s Guides
High Voltage DC Power Supply Selection Guide
Choose a high voltage DC power supply by setting your maximum DUT voltage, adding transient margin, then checking current, power, sink capability…
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Buyer’s Guides & Engineering Notes
Specs & Standards
IEC 61000-4-29 DC Power Supply: Test Bench Guide
An IEC 61000-4-29 DC power supply must reproduce controlled DC-input disturbances, not just deliver a stable voltage. The July 30, 2026 revision…
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Bidirectional & Regeneration
800V DC Data Center Testing: New Bench Requirements
800V DC data center testing is becoming its own bench category. AI racks are moving from 54 V in-rack distribution to 800…
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Specs & Standards
LV123 LV148 Test Power Supply Requirements
An LV123 LV148 test power supply needs two things a standard bench supply lacks. It has to slew voltage fast enough to…
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Specs & Standards
MCS Charger Test Power Supply: What IEC TS 63379 Fixes
IEC TS 63379:2026 is the first fixed electrical spec for Megawatt Charging System connectors, inlets and cables. Published in February 2026, it…
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Bidirectional & Regeneration
Megawatt Bidirectional DC Source Sink: Build by Paralleling
A megawatt bidirectional DC source sink test bench is built, not bought as one box. ActionPower’s NEXUS reaches 5 MW at 2000…
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Specs & Standards
ISO 15118-23 DC Testing: Build the Right Bench
ISO 15118-23 DC testing is a communication conformance activity, not a complete EVSE qualification. ISO/PAS 15118-23:2026 defines an abstract test suite for…
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Bidirectional & Regeneration
High-Capacity Bidirectional DC Power Supply
A high-capacity bidirectional DC power supply is a system-sizing decision, not simply a larger benchtop instrument. The German Search Console query “bidirektionale…
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Bidirectional & Regeneration
Bidirectional DC Power Supplies for Continuous Testing
Bidirectional DC power supplies earn their place in a test rack when the device under test alternates between consuming and returning energy.…
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Specs & Standards
Programmable DC Source Sink: The Quadrant Map
A programmable DC source sink is almost always a two-quadrant instrument, not a four-quadrant one. It holds output polarity fixed and reverses…
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