Custom ACDC and DCDC transformers for boosting performance in power supplies

|08 janvier 2026

A custom transformer can significantly boost system performance when it’s designed specifically for your application instead of using a generic off-the-shelf unit. Here’s how it helps, broken down by performance dimensions.

1. Higher Electrical Efficiency

A custom transformer can be optimized for:

  • Exact input voltage range (e.g., 110 V only, 230 V only, or narrow tolerance)
  • Exact load profile (continuous vs pulsed current)
  • Operating frequency (50/60 Hz or high-frequency SMPS)

Benefits

  • Lower core and copper losses
  • Reduced heat generation
  • Smaller heatsinks or no active cooling
  • Better overall system efficiency (often +3–10%)

2. Improved Voltage Regulation & Stability

Generic AC-DC supplies are designed for “average” use cases.
A custom design can deliver:

  • Tighter voltage regulation (±1% or better)
  • Lower output ripple and noise
  • Better transient response to load changes

Why this boosts performance

  • Sensitive electronics (MCUs, FPGAs, RF, audio, sensors) operate more reliably
  • Less need for downstream regulators
  • Reduced timing errors, data corruption, or analog distortion

 

3. Lower EMI & Noise

Custom transformers can be designed with:

  • Optimized winding geometry
  • Electrostatic shields
  • Custom core materials
  • Proper grounding and isolation strategy

Result

  • Lower conducted and radiated EMI
  • Easier compliance with FCC / CE / CISPR standards
  • Improved signal integrity in high-speed or analog circuits

 

4. Better Thermal Performance

By tailoring:

  • Core size and material
  • Wire gauge
  • Duty cycle assumptions

You get:

  • Cooler operation at nominal load
  • Longer component lifespan (every 10 °C drop roughly doubles lifetime)
  • More stable performance in hot environments

More information can be found on the datasheets:

251212 AC-DC TRANSFORMERS

251212 DC-DC TRANSFORMERS

If you want more information or if you have any questions, please contact Nijkerk Electronics!

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