Questions tagged [wireless-charging]

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2
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2answers
910 views

Is the QI norm about the components or the coil?

I would like to have induction charging for my smart object and I was looking at QI chargers/receivers The QI chargers I find on the market are "designed for phones" : they are very flat and offer a ...
0
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2answers
1k views

How does this wireless charger work?

I want to understand the way this circuit works. The following are diagrams of the transmitter and receiver of a wireless iPod charging circuit. I have added a link to the instructable that describes ...
2
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2answers
1k views

Inductive wireless mobile charger circuit

In wireless mobile charging circuit, is there any formula of spacing which varifies that by increasing diameter and turns, spacing (range) can be increased?
4
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4answers
7k views

How big does my wireless charging coil need to be?

Background: I need to wirelessly charge a battery at about 100W. However, there seems to be a gap in the wireless charging market. There are plenty of wireless power transfer systems operating in the ...
1
vote
1answer
355 views

what is the use of ultrafast diodes in wireless battery charger ckt

Instructable I am working on a wireless charger that uses a ZVS Driver circuit for the transmitting end. This is its circuit diagram: I have attached the instructable where this came from. Wireless ...
1
vote
1answer
67 views

Is it possible to induce few volts IMPULS over 10 m distance?

I'm currently learning about electromagnetism at college, so this question is on mine mind for a few weeks. If we have on one side: 9 V battery, DC-DC converter to few kilovolts, capacitor, button, ...
0
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1answer
146 views

WPC Inductive Power Transfer

I am building an Inductive Power Transfer (IPT) system. As of now I am using a design based on a flyback converter. It works great but I am having issues adding features such as power control feedback ...
0
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0answers
281 views

Minimal components for lighting an LED via wireless power transfer

I understand the basic concept of wireless power transfer. I wanted to make some wireless LEDs (Similar to this concept) and was trying to figure out the minimum component count I required in order ...
0
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0answers
201 views

QI COMM-Signal Simulation ltSpice

For a school project (Wireless Charging), I have to filter out and display the communication signal (2KHz) between transmitter and receiver from the Power Signal (100KHz). For this I have set up the ...
0
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1answer
60 views

WPT compensation topologies

I'm experimenting with compensation topologies for inductive WPT systems and have a small confusion. The general WPT industry uses compensation networks to cancel out reactive components in the ...