Description:
Wireless power supply technology (wireless charging) allows the receiver only across the air, paper or plastic housing can achieve the transmission of electrical energy, indeed greatly facilitate the application.
Specification:
Transmitter module (yellow shell) size: length 18mm * width 8.5mm * height 15mm
Coil size: outer diameter 38mm inner diameter 30mm thickness 1.6mm
Total length of the transmitting module: 10.2 CM
Line length of positive and negative pole: 6 cm
Input DC voltage: 12VDC
Input current: 100mA - 500mA
Receiver module (small board) size: length 26mm * width 5mm * thickness 3mm
Coil size: outer diameter 38mm inner diameter 30mm thickness 1.6mm
Total length of receiving module: 17 cm
Line length of positive and negative pole: 6 cm
Output voltage: 5VDC
Output current: 500mA - 600mA
Output power: 2.5W - 4W
Transceiver distance: 5 ~ 10mm
Center resonant frequency: 125KHz
Feature:
Emission coil and receive coil distance for 1mm ~ 20 mm, if small current work can be appropriately increase receiving coil turns to increase transmission distance
Test data, for reference:
Emission coil: copper wire diameter φ0.6 mm, coil diameter 40 mm, around 20 turns
Receiving coil is same
Emission coil grafted in 12V power supply: standby working current 300mA, load is 4.2V 800mAH polymer lithium battery
| Distance |
Output voltage |
Charging for 4.2V lipo battery current |
| 1mm |
5V |
600mA |
| 2mm |
5V |
450mA |
| 3mm |
5V |
360mA |
| 4mm |
5V |
310mA |
| 5mm |
5V |
240mA |
| 6mm |
5V |
210mA |
| 7mm |
5V |
162mA |
| 8mm |
5V |
150mA |
| 9mm |
5V |
132mA |
| 10mm |
5V |
120mA |
| 11mm |
5V |
110mA |
| 12mm |
5V |
70mA |
| 13mm |
5V |
54mA |
| 14mm |
5V |
41mA |
| 15mm |
5V |
28mA |
| 16mm |
5V |
19mA |
| 17mm |
5V |
17mA |
| 18mm |
5V |
10mA |
If receiving distance increase it's need to add the coil turns.
In practical application, it can change the turns of coil to adjust the power.
Note:
Because the product unceasingly to improve, some module circuit board a few place may and physical map slightly difference, but guarantee function is the same.
Package included:
1 x Wireless charger transmitter module
1 x Wireless charger receiver module
Connection method:
Pin 1 connected to the negative pole of the power supply;
Pin 2 connected to the positive pole of the power supply;
Pin 3 and 4 connected to the external transmit coil
Transmitting circuit diagram:
Low temperature circuit:
Receiver board circuit diagram:
