This paper presents a modified sub-electronic circuit with low-power recovery circuits to be implemented in implanted micro-sensor used to stimulate the human and animals' nerves and muscles. The system based on ASK modulation techniques operated with 13. 56 MHz according to industrial, scientific, medical (ISM). The modulation index is 12. 6% to achieve minimum power consumption to avoid the tissue heating. The system consists of external part with modified class-E power amplifier efficiency 87. 2%, and internal part consists of a voltage doubling rectifier with self-threshold cancellation and efficient low-dropout voltage regulator based on series NMOST transistor using 0. 35 μm technology to offer very stable 1. 8 DC V. The produced voltage used to power the sub-electronic implanted device with steady voltage even in any changing with the implanted load resistance. The mathematical model is given. The design is simulated using OrCAD PSpice 16. 2 software tools and for real-time simulation, the electronic workbench MULISIM 11 has been used to simulate the class-E power amplifier.
|Number of pages||13|
|Publication status||Published - 09 May 2013|
All Science Journal Classification (ASJC) codes
- Building and Construction
- Mechanical Engineering
- Management, Monitoring, Policy and Law