Power Amplifier Frequency Controller Using feedback control techniques for Bio-implanted Devices

• Autorzy: Hussein H. A. , Hannan M. A. , Mutashar S. , Samad S. A. , Mikdad A.

Warianty tytułu

PL

Kontrola częstotliwości wzmacniacza mocy wykorzystywanego do zasilania bio-implantów

• Języki publikacji: EN

Abstrakty

EN

Switch mode power amplifier is used in biomedical devices widely. The power amplifier supplies the required operating power to the implanted devices. Zero voltage switching (ZVS) operation of class-E power amplifier leads to convert DC voltage to AC with high efficiency and workings frequency. Frequency has a great function in powering most of the biomedical implanted devices. Frequency shift caused by inductors and capacitors used in the circuit can cause load variation or changing in mutual displacement or they may lead to instability and data loss of the implanted devices. So switching-mode frequency control is the key problem in the biomedical device powering system. This paper focused on the design of a frequency controlled power amplifier to improve the controller’s efficiency in terms of speed and better results. The objective of this work is to control the operating frequency. Feedback control method is used by using proportional integral derivative controller (PID), proportional integral (PI) and voltage controlled oscillator (VCO) to reduce the phase shift and settling time. The Bode plot and Nyquist stability criterion analyses show that the developed power amplifier frequency controller is stable and perform well to improve the controller efficiency.

PL

W artykule opisano wzmacniacz mocy używany w technice bio-implantów. Wzmacniacz klasy E z operacją ZVS przekształca stałe napięcie na napięcia AC. Kontrola częstotliwości tego napięcia ma ważne znaczenie ponieważ częstotliwość może się zmieniać przy obecności elementów L, C w układzie. W pracy opisano metode kontroli częstotliwości tego napięcia.

Słowa kluczowe

EN

biomedical implantable device; frequency control; PID controller; power amplifier; Voltage controlled oscillator

PL

wzmacniacz mocy; bioimplant; kontrola częstotliwości

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2015
• Tom: R. 91, nr 12
• Strony: 34--37
• Opis fizyczny: Bibliogr. 11 poz.. rys., wykr.

Twórcy

autor

Hussein H. A.

• Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia

autor

Hannan M. A.

• Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia

autor

Mutashar S.

• Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia

autor

Samad S. A.

• Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia

autor

Mikdad A.

• Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia

Bibliografia

• [1] Hannan, M.; Mutashar, S.; Salina, A.S.; Hussain, A. Modulation Techniques for Biomedical Implanted Devices and Their Challenges. Sensors 2012, 12, 297–319.
• [2] Senjuti, S.; Fricke, K.; Dounavis, A.; Sobot, R. Misalignment Analysis of Resonance-Based Wireless Power Transfer to Biomedical Implants. In Proceedings of the IEEE Canadian Conference on Electrical and Computer Engineering, Montreal, QC, Canada, 29 April–2 May 2012; pp. 1–5.
• [3] Huang, X.L.; Qiang, H.; Tan, L.L. The Coil Misalignment Model of Inductively Coupled Wireless Power Transfer System: Mutual Inductance Analysis and Transfer Efficiency Optimization. In Proceedings of the Progress in Electromagnetics Research Symposium, Moscow, Russia, 19–23 August 2012; pp. 676–683.
• [4] Mutashar, S.; Hannan, A.M. Efficient Low-Power Recovery Circuits for Bio Implanted Micro-Sensors. Przeglądelektrotechniczny 2013, 5, 15–18.
• [5] Mutashar, S.; Hannan, M.; Salina, A.S.; Hussain, A. Analysis of Transcutaneous Inductive Powering Links. In Proceedings of the IEEE 4th International Conference on Intelligent and Advanced Systems (ICIAS), Kualalambur, Malaysia, 12–14 June 2012; pp. 64–67.
• [6] Sokal, N.O.; Sokal, A.D. -A New Single-Ended Class of High-Efficiency Tuned Switching Power Amplifiers. IEEE J. Solid- State Circuits 1975, 10, 168–176.
• [7] Mutashar, S.; Hannan, M.A.; Salina, A.S.; Hussain, A. Efficient data and power transfer for bio implanted devices based on ask modulation techniques. J. Mech. Med. Biol. 2012, 12,1240030:1–1240030:17.
• [8] Ahmed, M. sliding mode control for switched mode power supplies. Thesis for the degree of Doctor of Science, Lappeenranta University of Technology, 2004. ISSN 1456-4491.
• [9] Yusoff, M.J. ; Nik Ismail, N.F. ; Musirin, I. ; Hashim, N. ; Johari, D. Comparative Study of Fuzzy Logic Controller and Proportional Integral Derivative Controller on DC-DC Buck Converter, IEEE 4th International Power Engineering and Optimization Conference (PEOCO), 2010, pp 142-148.
• [10] Hannan, M. A.; Chan, K. W. Transient Analysis of FACTS and Custom Power Devices Using Phasor Dynamics. Journal of Applied Science 2006, 6(5), 1074-1081.
• [11] Perticaroli, S.; Toso, S.; Palma, F. A Harmonic Class-C CMOS VCO-Based on Low FrequencyFeedback Loop: Theoretical Analysis and Experimental Results. IEEE Trans. Circuits Syst. I Regul. Pap. 2014, 61, 2537–2549.