Reliable Medical Power Supply Design for EEG Devices

Application Background

Electroencephalogram (EEG) devices are essential diagnostic tools used to detect and record electrical activity in the brain. As they connect directly to the human body through multiple electrodes placed on the head, they require exceptionally high standards for electrical safety and signal integrity.

Role of DC-DC Power Supply

DC-DC power modules play a vital role in EEG systems by performing the following tasks:

•  •Provide isolated power to prevent interference from the main power supply entering the signal processing pathway.
•  •Minimize leakage current to ensure patient safety, especially in CF-class applications.
•  •Support multiple low-voltage outputs (e.g., ±5V, ±12V) to power analog amplifiers, ADCs, DSPs, etc.
•  •Offer high electromagnetic interference (EMI) immunity to guarantee accurate EEG signal acquisition.

Recommended Technical Specifications

Application Benefits

✅ Complies with stringent safety standards for patient-contact medical devices.

✅ Delivers precise and stable power to improve EEG signal amplification and acquisition accuracy.

✅ Reduces system size and power consumption.

✅ Supports portable EEG device development trends.