With the rapid advancement of battery technology, from consumer electronics to electric vehicles and large-scale energy storage systems, batteries have become the core energy carrier, making their performance testing increasingly critical. A battery pack typically consists of multiple cells and a Battery Management System (BMS). The BMS is responsible for monitoring cell status, estimating state of charge, managing cell balancing, and providing protection functions.

In recent days, high-voltage direct-grid-connected “ultra-fast charging” technologies have been deployed one after another. With a revolutionary design that allows direct connection to 10 kV / 35 kV medium-voltage grids and eliminates the need for traditional bulky transformers, this approach is rapidly becoming a mainstream pathway to achieve ultra-fast charging. By directly delivering DC output voltages of up to 800 V or even 1,000 V, it compresses electric vehicle charging time to the “minute level.”

In the laboratory, you may often hear a sentence: “Three-phase imbalance is just an abnormal condition—no need to worry too much.” But in reality, the situations that actually cause equipment problems are precisely these “non-ideal conditions.” Today, we will use the IT7900 three-phase AC power supply / grid simulator to talk about a very “engineering” topic: how to simulate three-phase voltage imbalance.

ITECH has recently and successfully delivered another mega-ampere-level high-current power supply system to a leading hydrogen energy manufacturer. The system, built around the IT-M3900D series high-power programmable DC power supplies, has now been officially commissioned on the customer’s next-generation electrolyzer production line.

In the evolution of electronic products, users are always expecting longer battery life. However, the increasing functionality on one hand and the shrinking device size on the other have become “roadblocks” to improving battery capacity, keeping it in a state of “tight balance.” This makes battery life a key competitive factor for consumer electronics, medical electronics, and communication modules.