Long Charging Distance Wireless Charger Circuit Board

1.Product introduction

DESK-TX1805 transmitter module consists of the 50mm Tx coil (see later description) with an integrated electronics PCB.

The DESK-TX1805 transmitter module offers a Coil-to-coil charging distance up to 8mm(+/- 1mm）.

The DESK-TX1805 transmitter module accepts QC2.0/3.0 Qualcomm quick-charge Adapters which provides 5V2A or 9V1.67 input on demand.

Thermal management system is designed to stop power transfer when the sense temperature is exceeding

safety threshold while auto-resume mechanism would rescan the device when the temperature cool down to safety level.

2.Product parameters

Input voltage : 5V/9VDC+/-5%

Rated input current: 5V-2.0A/9V-1.5A

Required input Ripple voltage: <150mVp-p @ 1.5A 9V

Output power of Rx: 5W-7.5W-10W (10W / 9V-1.5A input)

Switching frequency: Working For QI 110-205KHZ / Iphone 126.5KHz +/-3KHz

Charging Efficiency >70% (TI Medium Power Test RX)10W >75% (IDT P9221-R-EVK)10W

Ambient operating Temperature: -10 to 45°C

Over current protection: Yes

Thermal protection: Yes

Storage Temperature: -20 to +85°C

Effective Charging Area: typ. +/-5mm from coil centre (Dz=3mm)

Effective Charging Distance: typ.+3~ +8mm from Tx-coil to Rx-coil

3.Product features and applications

The DESK-TX1805 transmitter module consists of a PCBA with micro USB connection to the external QuickCharge2.0/3.0 Adapter supply.

Coloured LED indicates status of the transmitter, such as receiver detection, charging and error, etc.

Zhengtaifeng Shenzhen Branch is a diversified enterprise integrating R&D, production, sales, industry and trade. Its products include inductive coils as small as 1 mm to 300 mm, irregular shaped hollow self-adhesive coils, hearing aid coils, skeleton coils, trigger coils , RFID coils, wireless charging coils, inductors, sensors; various supporting plastic accessories, access control system products, various high-frequency transformers, common mode inductors, toroidal inductors, etc. in the power supply industry. Provide customer R&D and manufacturing to customers in the fields of industrial electronics, acoustic electronics, small household appliances, security monitoring systems, IoT sensing, beauty equipment, drone sensing, medical equipment, wireless chargers, charging piles, 5G, new energy and other fields One-stop vertical supporting solutions.