A new single-stage AC-DC converter for medical implant devices

Yen-Chia Chu, N. Sertac Artan, Dariusz Czarkowski, H. Jonathan Chao
2013 2013 IEEE International Symposium on Circuits and Systems (ISCAS2013)  
A single-stage buck-type AC-DC converter is proposed for medical implants to achieve high efficiency. The proposed structure combines two traditional stages of the three-stage power path for medical implants and eliminates a MOSFET and a filter capacitor to improve the efficiency. The proposed circuit converts 40 V pp coil voltage into a DC output voltage of 4.2 V. The stability analysis of the circuit is also presented. Load currents between 1 mA to 100 mA are supported. The efficiency of the
more » ... efficiency of the proposed circuit is 81.9%.
doi:10.1109/iscas.2013.6572497 dblp:conf/iscas/ChuACC13 fatcat:fbp5ib3hc5cj3nhz6tgkvqzssi