Questions tagged [wireless-charging]

The tag has no usage guidance.

15 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
3
votes
0answers
1k views

Qi Receiver on PCB

I'm looking at implementing Qi charging in my project, would it be possible to have a Qi receiver directly on the back of the PCB (copper traces in the shape of a coil)? Could this interfere with the ...
2
votes
1answer
77 views

Coupling coefficient variation in Wireless power transfer

Question regarding WPT compensation topologies. I'm trying to make a inductive wireless power transfer system where the RX coil can move quite conisderably relative to TX coil and still transfer ...
1
vote
1answer
61 views

Inductive Charging 2 layer coil transfer to 1 layer receiver. Any issues?

I am looking to incorporate a inductive charging mechanism into a project I’m working on. On the receiving side I only have room for a single layer coil design. For my transfer side I have more ...
1
vote
1answer
91 views

Power IR2110 from a low voltage AC Source

I am trying to power the IR2110 using an AC Source. However, this source is also connected to a full wave bridge rectifier that's going to supply a controlled buck converter. I tried using a voltage ...
1
vote
1answer
68 views

Slayer Exciter Interfering With Voltage Measuremnet With Multimeter

I've built myself a slayer exciter and I am trying to measure the output voltage. I've created a coil with approximately 10 turns and soldered a bridge rectifier to the ends of the coil so I can ...
1
vote
0answers
379 views

Significant voltage drop across IGBT

I'm using an IGBT in a wireless charger circuit as a swtich to send 'pulses' of power across the gap. I have 14V coming from the mosfet driver and I can see around 5v on the collector. I have the ...
0
votes
0answers
36 views

Wireless Power Transfer for a toothbrush

The general idea is to charge a cordless toothbrush from 12V DC, instead of the mains. I have used a simple circuit that I more or less lifted from a Linear AppNote/Demo manual (DC1969). I would like ...
0
votes
2answers
38 views

How Qi charger reads data from receiver

I saw a guy making Qi receiver module with ATTiny13A: Qi wireless power receiver from scratch. In his circuit, secondary shorted through capacitors to ground to send data. My question is how ...
0
votes
1answer
132 views

How can I model and simulate a resonant inductive square spiral coil in MATLAB?

I was wondering if it was possible to model and simulate my WPT system in MATLAB to determine if my analytical calculations are correct. I want to model my system in MATLAB as I have seen on MathWorks ...
0
votes
0answers
350 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
votes
0answers
26 views

How does the change of load on the Rx side influence the Tx resonance voltage in a wireless powering sysytem

As the circuit shows, U = 5V toggling the polarity in 10KHz. When IL is changed from less than 1mA to 20mA, the P-P voltage of the Tx coil will increase. How should I understand the phenomenon? I have ...
0
votes
0answers
241 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
votes
0answers
114 views

Shielding from inductive charging in simple PCB

I am going to design a fairly simple binary LED wrist watch. For a cool feature and a good learning experience I want it to have wireless charging capabilities so I purchased this wireless charging ...
-1
votes
1answer
153 views

What kind of coil do I need for wireless power transmission?

My project: I am trying to design a system for a school project that will help with electrical safety. My idea is a wireless electrical socket/outlet. It will use a transformer to convert 120v to 6v, ...
-2
votes
1answer
115 views

Wireless charging circuit

I'm designing a wireless charging circuit and i've noticed that on the internet there are two types of circuits: For some schematics the LC circuit is made in series resonace, in some in parallel. ...