Important: Use custom search function to get better results from our thousands of pages

Use " " for compulsory search eg:"electronics seminar" , use -" " for filter something eg: "electronics seminar" -"/tag/" (used for exclude results from tag pages)


 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Wireless Power Transmission ppt1
Post: #1

Wireless Power Transmission


.ppt  Wireless Power Transmission.ppt (Size: 4.71 MB / Downloads: 112)

Solar Power from Satellites


1968’s idea for Solar Power Satellites proposed by Peter Glaser
Would use microwaves to transmit power to Earth from Solar Powered Satellites
Idea gained momentum during the Oil Crises of 1970’s, but after prices stabilized idea was dropped
US Department of Energy research program 1978-1981

Problems

Issues identified during the DOE study
Complexity—30 years to complete
Size—6.5 miles long by 3.3 miles wide
Transmitting antenna ½ mile in diameter(1 km)


Microwaves

Frequency 2.45 GHz microwave beam
Retro directive beam control capability
Power level is well below international safety standard


Phased-array antenna

The λs for microwaves are small  dipoles small
Beam focusing: phased-array antenna
Electronically steered by varying the timing or phase
Waves will merge together


Diffraction analogy


Light same properties
Laser beam shinning trough a narrow opening & spreads out or diffracts
Bright spot in the center w/fainter spots on the side
Post: #2
Wireless power transfer (WPT) wireless power transmission, or electromagnetic energy transfer is the transmission of electric power without cables. Wireless energy transmission technologies use variable electric, magnetic, or electromagnetic fields over time. Wireless transmission is useful for powering electrical devices where interconnection cables are inconvenient, dangerous or not possible.

Wireless energy techniques are mainly divided into two categories, non-radiative and radiative. In near-field or nonradiative field techniques, power is transferred by magnetic fields by inductive coupling between wire coils or by electric fields by capacitive coupling between metal electrodes. Inductive coupling is the most widely used wireless technology; its applications include the charging of portable devices such as electric telephones and toothbrushes, RFID tags and chargers for implantable medical devices such as artificial pacemakers or electric vehicles.

In far-field or radioactive techniques, also called power radiation, energy is transferred by beams of electromagnetic radiation, such as microwaves or laser beams. These techniques can transport longer distances of energy but must be directed at the receiver. The proposed applications for this type are the solar satellites and the wireless remote control airplanes. An important issue associated with all wireless energy systems is to limit the exposure of people and other living things to potentially harmful electromagnetic fields.
 

Marked Categories : 2 45ghz wireless power transmission ppt,

[-]
Quick Reply
Message
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  power point presentation on role of bacteriocin in food safety Guest 0 0 25-11-2018 02:56 AM
Last Post: Guest
Smile gearless power transmission system pdf Guest 6 1,594 16-04-2018 08:28 AM
Last Post: Guest
  wireless accelerometer based robot Guest 0 0 09-04-2018 11:57 PM
Last Post: Guest
  chemometric wind power in france Guest 0 0 01-04-2018 03:54 PM
Last Post: Guest
Thumbs Up power alcohol pdf from agricultural wastes Guest 1 0 31-01-2018 11:25 AM
Last Post: dhanabhagya
  transmission expansion planning using differential evolution matlab code Guest 1 0 27-01-2018 11:21 AM
Last Post: dhanabhagya
  harnessing high altitude wind power full report computer science topics 8 68,337,495 25-01-2018 12:22 AM
Last Post: RobertAmund
  seminar report on latest trends in nuclear power station Guest 1 233 18-11-2017 10:46 AM
Last Post: jaseela123
  power electronics by gnanavadivel ebook pdf download Guest 3 0 17-11-2017 12:17 PM
Last Post: jaseela123
  PRE-PAID POWER CONSUPTION USING COIN BOX REPORT seminar flower 1 899 27-10-2017 01:01 PM
Last Post: nagaland 8pm today
This Page May Contain What is Wireless Power Transmission ppt1 And Latest Information/News About Wireless Power Transmission ppt1,If Not ...Use Search to get more info about Wireless Power Transmission ppt1 Or Ask Here

Options: