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.

Since its launch, ITECH’s IT2700 Multi-Channel Modular Power System has gained rapid adoption across research laboratories and production lines worldwide. With its flexible configuration of power supply, bidirectional source, regenerative load, and SMU (source measure unit) modules — all within a compact 1U high-density design — the IT2700 has proven itself as a versatile, efficient, and reliable testing solution.

BJT, or bipolar transistor, commonly known as triode, is an electronic device with three terminals, made of three parts of semiconductors with different degrees of doping, and the charge flow in the transistor is mainly due to the diffusion of carriers at the PN junction and the drift motion. Bipolar transistors are capable of amplifying signals and have better power control, high-speed operation, and durability, so they are often used to form amplifier circuits or to drive devices such as speakers and motors, and are used in a wide range of applications such as aerospace engineering, medical devices, and robotics.