Ditutup

Design a low-cost RF energy harvesting/scavenging circuit

NB: Experience with RF energy-harvesting or energy-scavenging circuits is required.

Item 1:

- Design an RF energy harvesting circuit to power a consumable/disposable device.

- Design of the antenna is not required. The antenna type will be a resonant small-loop antenna.

- The frequency will be fixed.

- The frequency will most likely be 50 kHz.

- Future design changes may require the device to work at a different frequency, from about 2 kHz to 60 kHz. Please consider this in the design and state how a change in the frequency would change the design.

- The power available from the antenna will be very low.

- The signal from the antenna will be a very low voltage, noisy sinusoid.

- State the minimum input voltage level that your circuit can work with.

- The energy should be stored at approximately 1.5 volts.

- Specify some different options for the energy storage capacity (e.g. different sized capacitors).

- At the minimum input voltage level, state the time to reach full charge. Ideally this would be less than about 10 minutes.

- The components should be readily available and not too small, as the PCB will be prototyped by hand.

- Provide a circuit diagram and listing of the components with supplier and prices.

Item 2:

- Produce a version of the circuit which stores the energy at about 22.5 volts.

- Other requirements the same as Item 1.

Item 3:

- Produce a PCB layout for the two designs.

- The layout should be suitable for rapid prototyping using an inkjet printed circuit. The printing process is described at: [url removed, login to view]

- This means that the layout can be up to the size of an A4 piece of paper. A6 paper size is also convenient.

- It should be a single-sided layout.

- The traces should be relatively wide to minimize their resistance.

- Test points should be provided in the layout so that the amount of energy stored may be measured.

Keahlian Elektronika, Tata Letak PCB

Lihat lebih lanjut: design power supply low cost, low cost power supply circuit 12v, low cost power supply circuit, low cost 12v switching supply circuit, 230v low cost rectifier circuit, low cost airport design, low cost power supply circuit project, bridge low cost power supply design, power supply circuit low cost, low cost 12v supply circuit, low cost power supply pcb design, low cost power supply design, outsourcing web design india low cost usd, low cost freelance electronic design engineers, free green energy logo design, electronic energy meter design india, energy brochurs design, energy logo design buy, alternative energy logo design, energy website design, energy brochure design, green energy logo design, solar energy website design, low cost housing design america, circuit diagram clock alarm design

Tentang Pemberi kerja:
( 1 ulasan ) Richmond Vale, Australia

ID Proyek: #13675409

19 freelancers are bidding on average $1160 for this job

highfliercnr

Dear Sir, I have RF circuit design and board layout experience. If you are looking for an highly skilled hardware engineer, I believe that I am the one who you're looking for. I am also an experienced PCB desig Lagi

$1333 USD dalam 15 hari
(107 Ulasan)
8.0
rojuwon1222

What experience do you have that is relevant to this project? Hi,Client. I have 13 years experience in circuit, PCB design, manufacture and assemble, firmware and application(VC++, QT, Labview) writing. Proposal: Lagi

$1111 USD dalam 20 hari
(32 Ulasan)
6.1
$1666 USD dalam 35 hari
(48 Ulasan)
6.4
DamithaKD

What experience do you have that is relevant to this project? We have desinged few RF Systems before :) Can we talk about this ? Proposal: HI, About the Project : We have developed similer projects before Lagi

$1250 USD dalam 20 hari
(29 Ulasan)
6.0
$1250 USD dalam 20 hari
(9 Ulasan)
5.6
SPARKtechBD

What experience do you have that is relevant to this project? I have 25 years of experience on RF and Power supply design. Proposal: Electronics =========== I have experience on digital electronics for 15 years an Lagi

$1500 USD dalam 60 hari
(5 Ulasan)
4.5
GrigAnna

Hello. I'm electrical engineer with 10 year experience in PCB designing (with KiCad, Altium, cadence) and last project I was done is a "smart watch"project for novatronics LLC which is a Russian company and based in Ch Lagi

$750 USD dalam 15 hari
(9 Ulasan)
4.7
udayd75

What experience do you have that is relevant to this project? Dear sir, We sonen engineer solutions provide Design, Manufacturing and consultancy services to Mechanical, Electrical and Electronic industries, we have q Lagi

$1250 USD dalam 20 hari
(3 Ulasan)
4.4
EngSolution

Hi, I am sorry for my late reply. I did not see any alert from Freelancer android App. How can i help you? ----------------------------------------------------------- hi, I have a design experience in RF circuits. Lagi

$1333 USD dalam 20 hari
(9 Ulasan)
3.7
usmanvardag

What experience do you have that is relevant to this project? I am an RF communication engineer and recently published a research paper on passive wireless sensing ([url removed, login to view]). I have experience d Lagi

$800 USD dalam 12 hari
(2 Ulasan)
3.3
$750 USD dalam 20 hari
(4 Ulasan)
3.1
$1250 USD dalam 20 hari
(0 Ulasan)
0.0
$1250 USD dalam 20 hari
(0 Ulasan)
0.0
iffi37

Hi We are a team of experts. If you hire us, we won't let you down. We can provide you all these things with unlimited revisions to the satisfactory completion of [url removed, login to view] you

$888 USD dalam 15 hari
(0 Ulasan)
0.0
$1525 USD dalam 40 hari
(1 Ulasan)
0.0
sgo5884f49acdcb6

Hello Sir I have done my [url removed, login to view] in electronics and communication. My Area interest is RF circuits, radars and antenna. I have also worked on software like ADS, feko, HFSS, MATLAB and LabVIEW. Also I have experience wi Lagi

$1111 USD dalam 10 hari
(0 Ulasan)
0.0
thetechvendors

What experience do you have that is relevant to this project? I am a research engineer in RF and microwave cluster of a university. I have experience of working in RF energy harvesting. I have worked on rectifying circ Lagi

$888 USD dalam 10 hari
(1 Ulasan)
0.0
vuthanhlqdtu

What experience do you have that is relevant to this project? I joined a project to havest energy from headset port of smart phone. Sine wave transmitted from smart phone go through voltage mutiplier, rectifier and con Lagi

$800 USD dalam 15 hari
(2 Ulasan)
0.0
$1333 USD dalam 20 hari
(0 Ulasan)
0.0