Projects:2016s1-196 Wireless Power Transfer - Revision history

A1659067: /* References */

2016-10-27T14:17:22Z

‎References

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‎References

A1659067 at 14:16, 27 October 2016

2016-10-27T14:16:33Z

A1659067: /* Result */

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‎Result

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‎Result

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‎Result

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‎Result

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‎Result

A1659067: /* Circuit Design */

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‎Circuit Design

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‎Turns

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 == References ==
 [1] 	Q. Zhao, Y. Wang and X. Chen, “Inductive Power Transfers,” 18 10 2015. [Online]. Available: https://www.eleceng.adelaide.edu.au/students/wiki/projects/index.php/Projects:2015s1-71_Inductive_Power_Transfers. [Accessed 6 3 2016].
 [2] 	M. Pinuela, D. C. Yates, S. Lucyszyn and P. D. Mitcheson, “Maximising DC to Load Efficiency for Inductive Power Transfer,” IEEE TRANSACTIONS ON POWER ELECTRONICS, 2012.
 [3] 	E. Sazonov and M. R. Neuman , “Wearable Sensors: Fundamentals, Implementation and Applications,” Elsevier, pp. 253-255, 2014.
 [4] 	K. Siddabattula, “Why Not A Wire? The case for wireless power,” 30 11 2015. [Online]. Available: https://www.wirelesspowerconsortium.com/data/downloadables/1/2/1/1/why-not-a-wire-the-case-for-wireless-power.pdf. [Accessed 10 4 2016].
 [5] 	J. Perzow, “Measuring Wireless Charging Efficiency In the Real World,” 5 8 2015. [Online]. Available: http://www.batterypoweronline.com/conferences/wp-content/uploads/2015/08/WirelessConsortium.pdf. [Accessed 15 4 2016].
 [6] 	A. Karalis, J. D. Joannopoulos and M. Soljačić, “Efficient wireless non-radiative mid-range energy transfer,” Annals of Physics, vol. 323, no. 1, pp. 34-48, 2008.
 [7] 	C. Zhang, D. Lin and S. Y. Hui, “Basic Control Principles of Omnidirectional Wireless Power Transfer,” IEEE Transactions on Power Electronics, vol. 31, no. 7, pp. 5215-27, 2016.
 [8] 	“Inductance of Polygonal Coils,” in Scientific Papers of the Bureau of Standards, Washington, 1922, p. 741.

← Older revision		Revision as of 14:16, 27 October 2016
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	== References ==		== References ==
		+	[1] Q. Zhao, Y. Wang and X. Chen, “Inductive Power Transfers,” 18 10 2015. [Online]. Available: https://www.eleceng.adelaide.edu.au/students/wiki/projects/index.php/Projects:2015s1-71_Inductive_Power_Transfers. [Accessed 6 3 2016].
		+	[2] M. Pinuela, D. C. Yates, S. Lucyszyn and P. D. Mitcheson, “Maximising DC to Load Efficiency for Inductive Power Transfer,” IEEE TRANSACTIONS ON POWER ELECTRONICS, 2012.
		+	[3] E. Sazonov and M. R. Neuman , “Wearable Sensors: Fundamentals, Implementation and Applications,” Elsevier, pp. 253-255, 2014.
		+	[4] K. Siddabattula, “Why Not A Wire? The case for wireless power,” 30 11 2015. [Online]. Available: https://www.wirelesspowerconsortium.com/data/downloadables/1/2/1/1/why-not-a-wire-the-case-for-wireless-power.pdf. [Accessed 10 4 2016].
		+	[5] J. Perzow, “Measuring Wireless Charging Efficiency In the Real World,” 5 8 2015. [Online]. Available: http://www.batterypoweronline.com/conferences/wp-content/uploads/2015/08/WirelessConsortium.pdf. [Accessed 15 4 2016].
		+	[6] A. Karalis, J. D. Joannopoulos and M. Soljačić, “Efficient wireless non-radiative mid-range energy transfer,” Annals of Physics, vol. 323, no. 1, pp. 34-48, 2008.
		+	[7] C. Zhang, D. Lin and S. Y. Hui, “Basic Control Principles of Omnidirectional Wireless Power Transfer,” IEEE Transactions on Power Electronics, vol. 31, no. 7, pp. 5215-27, 2016.
		+	[8] “Inductance of Polygonal Coils,” in Scientific Papers of the Bureau of Standards, Washington, 1922, p. 741.

← Older revision		Revision as of 14:16, 27 October 2016
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	Experimental testing of the WPT system has proved the positive result of the implementation of square wave and impedance matching. The designing of coils and amplifiers is successful, with an efficiency of 69.4% and output power of 701mW. However, the design of oscillator and rectifier still need to be refined due to the low efficiency they bring.		Experimental testing of the WPT system has proved the positive result of the implementation of square wave and impedance matching. The designing of coils and amplifiers is successful, with an efficiency of 69.4% and output power of 701mW. However, the design of oscillator and rectifier still need to be refined due to the low efficiency they bring.
		+
		+	== References ==

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 The results are shown in the table.
-[[File:result.png|200px]]
+[[File:result.png|400px]]
 == Conclusion ==

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 The circuit is constructed as shown below.
-[[File:IMG 20161020 1909212-min.jpg|200px]]
+[[File:IMG 20161020 1909212-min.jpg|400px]]
 The results are shown in the table.
-[[File:result.png]]
+[[File:result.png|200px]]
 == Conclusion ==

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 == Circuit Design ==
 The complete circuit is designed as shown in Figure 3.1. It consists of oscillator, amplifier, coils, rectifier, load (R_L) and matching capacitors (C_1 and C_2). The system is powered by a ±5V dual DC power source. A 555 timer is used to generate a fixed frequency AC signal. A class-D amplifier and impedance matching capacitors are used to improve the efficiency and the output power.
 == Result ==

← Older revision		Revision as of 14:09, 27 October 2016
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	Then the effect of N_1 and N_2 is plotted below.		Then the effect of N_1 and N_2 is plotted below.
		+
		+	[[File:N1.png]]
		+
		+	[[File:N2.png]]

	== Circuit Design ==		== Circuit Design ==