Wireless Charging Charger Module Power Supply Coil For Cell Phone DIY TX + RX modulesDesigned by vitor_market, Ships from Portugal
Specification: Input voltage : DC-5-12V Input current :100-500mA Output voltage : DC 5V Output current :500-600MA 2.5-4W output power Center resonant frequency : 125KHz Emission coil and receive ...Read More…
Emission coil and receive coil distance for 1 ~ 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 φ 0.6 mm, coil diameter 40 mm, around 20 turns. Receiving coil is same. Emission coil grafted in 12V power supply: standby working current300 ma, load is 4.2V 800mAH polymer lithium battery
distance output voltage charging for 4.2 V Lipobattery 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 ractical application, it can change the turns of coil to adjust the power.
Many possible apllications.
Please check out my other versatile items on my store My Tindie Products
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