Design of a CMOS Self-Bootstrapping Rectifier with Latch-up Protection for Wireless Power Harvesting Systems
Abstract
This study, based on the specifications of implantable medical devices for wireless power transfer, presents a bootstrap-comparator rectifier circuit design characterized by high voltage conversion efficiency, high power conversion efficiency, and improved reliability. The design is implemented using a 0.18 µm process to achieve superior VCE and PCE performance. The input signal is a 2 MHz, 3.3 V sine wave, producing an output voltage of 2.94 V with a maximum operating current of 5 mA. At an output load of RL=8kΩ, the maximum voltage conversion efficiency (VCE) reaches 89.02%, while the maximum power conversion efficiency (PCE) is 84.73% at RL=500Ω. The temperature rise (ΔT) is 0.22–0.45 °C.
Fields of Study & Subjects
Wireless Power Transfer Systems
Advanced DC-DC Converters
Analog and Mixed-Signal Circuit Design
Publication details
- Journal / source
- Electronics
- Volume
- 15
- Issue
- 2
- Pages
- 415–415
- Publication date
- 17 January 2026
- Language
- EN