Blog

Design and selection considerations for three-phase transformers in industrial control panels, including voltage, load balance, insulation, thermal rise, mounting, noise, and testing.

Design considerations for transformers in wide input voltage power supplies, including turns ratio, duty cycle, saturation margin, insulation, thermal rise, and startup behavior.

How transformer manufacturers control batch consistency through drawings, BOM control, winding instructions, material approval, production testing, inspection, and change control.

LLC resonant converters rely on the high frequency transformer as both an isolation device and a key part of the resonant power stage. For BaoHui Tech, this type of project usually starts with the converter operating window, not only with a target wattage. Input voltage range, output voltage, resonant tank design, switching frequency, cooling method,

Thermal rise is one of the most important reliability factors in a power transformer. A transformer can meet voltage and kVA requirements on paper while still running too hot in the final equipment. BaoHui Tech treats thermal review as an early design step because temperature affects insulation life, efficiency, enclosure safety, and long-term field performance.

Inverter output filters depend on inductors that can handle ripple current, switching frequency, load dynamics, and thermal stress. A custom inductor is often required when the inverter has a specific power rating, switching method, enclosure size, or noise target. BaoHui Tech designs magnetic components for these constraints instead of forcing the application around a standard

Industrial control systems often use isolation transformers to separate sensitive control circuits from noisy or unsafe power environments. The transformer must provide electrical isolation, stable voltage, acceptable temperature rise, and predictable grounding behavior. BaoHui Tech designs these transformers around the control system environment, not just the rated input and output voltage. What Isolation Must Actually

EMI problems in power supplies are often traced to layout, switching behavior, grounding, and magnetic component construction working together. A transformer manufacturer cannot solve every EMI issue alone, but transformer design has a major influence on common-mode noise, ringing, leakage fields, and repeatability. BaoHui Tech looks at EMI-related magnetic design choices early because they are

Technical guide to high frequency transformers for medical power supplies, covering isolation, leakage current, thermal control, EMI, and custom manufacturing review.

Design considerations for custom high frequency transformers used in on-board chargers, including isolation, LLC stages, leakage inductance, thermal rise, EMI, and manufacturing control.