High Efficient CMOS Rectifier with Reduced Leakage for Low Powered Bio-Implantable Devices
Damarla Paradhasaradhi1, G.L.V.Sai Kumar Reddy2, G. Manideep3, Y.L.N.D.V.Amar Kumar4
1Damarla Paradhasaradhi, Assistant Professor, Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur (Andhra Pradesh), India.
2G.L.V. Sai Kumar Reddy, UG Student, Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur (Andhra Pradesh), India.
3G. Manideep, UG Student, Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur (Andhra Pradesh), India.
4Y.L.N.D.V. Amar Kumar, UG Student, Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur (Andhra Pradesh), India.
Manuscript received on 01 May 2019 | Revised Manuscript received on 15 May 2019 | Manuscript published on 30 May 2019 | PP: 112-116 | Volume-8 Issue-7, May 2019 | Retrieval Number: F3798048619/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: To support the operation of supplying power to biomedical devices is a challenging task. Rectifiers guarantee the efficient voltage conversion and power conversion chains. This paper presents the comparison among different architectures of CMOS rectifiers to have a hold on the power supply problem of low-voltage biomedical implantable devices. The presented rectifier utilizes bootstrapped capacitors to decrease the effective threshold voltage and a CMOS inverter to reduce the reverse leakage. The designed architecture gives high Power Conversion Efficiency (PCE) at the expense of low dropout voltage. Accordingly, this proposed design is a decent option for low-voltage power supplies and large load current applications. The proposed rectifier is implemented in generic 0.25 μm CMOS technology. Simulated results show that the proposed rectifier has improved voltage and power conversion efficiency compared with the other CMOS rectifiers provided.
Keyword: Bio-implantable devices, Bootstrapping capacitor, Differential drive, Reverse leakage, Threshold cancellation.
Scope of the Article: Optical Devices