Search
Home / Products / Wireless Charging Testing
Wearable smart products for wireless charging applications use a large number of FPC/PCB methods to wire windings into coils
Comply with the two major wireless charging standards of Qi & PMA, the measurement frequency is up to 1MHz, and 24 sets of coil boards can be automatically detected at a time

How does the board factory check the quality of the wireless charging coil board and improve the production test efficiency? Flying probe tester and LCR meter cannot meet the demand.

 

The board factory uses the flying probe test machine to test the wireless charging coil board. The production efficiency is extremely low and the inductance and stray capacitance cannot be accurately measured.

 

The main test items of the flying probe tester are the open circuit or short circuit of the circuit, and it cannot accurately measure the stray capacitance on the line or the inductance of the coil circuit, and the flying probe test method is single-sided test than traditional dedicated circuit board test The machine can test the front and back of the circuit board at the same time. The test efficiency is very low and it is not suitable for mass production testing.

 

The board factory/coil factory chooses the digital meter LCR Meter to test the impedance characteristics of the coil. Only one set of coils can be tested at a time, and the low productivity cannot reduce the working hours.

 

Generally, LCR Meter only provides a single-channel test function, and can only test the impedance characteristics of a set of coils at a time. It is suitable for PCB/FPC wiring to wireless charging coil boards. The test efficiency is very low. The board manufacturers usually design and plan the circuit board. The coil array board forms multiple coils on the same PCB/FPC. Therefore, the demand for shipment inspection is to detect multiple coils at the same time to improve the output and test efficiency. However, the general LCR Meter cannot meet the test requirements of the board factory for multiple connections. .

 

MICROTEST PCB Multi-Set Coil Impedance Tester 9332 is the most efficient testing solution for WPC wireless charging applications. It adopts a precision four-wire impedance measurement method. The impedance measurement frequency band is up to 1MHz. It meets the working frequencies required by Qi or PMA Wireless Charging Association standards. Yes (Qi proposes 205KHz; PMA proposes 304KHz).

 

MICROTEST PCB Multi-Group Coil Impedance Tester 9332 The measurement range of electrical parameters of the three major components is the smallest resistance to 1mΩ, the inductance measurement is 0.1nH to 100H, the accuracy is 0.1%±1nH, and the capacitance is 0.01pF~1F. It is 0.1%±1pF, especially for copper foil etching or silver glue printed winding coils to provide 48-point testing. It can detect 24 sets of coils and multiple rows of boards at the same time, which greatly improves the test efficiency compared with single-channel LCR Meter.

 
How does the board factory check the quality of the wireless charging coil board and improve the production test efficiency? Flying probe tester and LCR meter cannot meet the demand.



The board factory uses the flying probe test machine to test the wireless charging coil board. The production efficiency is extremely low and the inductance and stray capacitance cannot be accurately measured.



The main test items of the flying probe tester are the open circuit or short circuit of the circuit, and it cannot accurately measure the stray capacitance on the line or the inductance of the coil circuit, and the flying probe test method is single-sided test than traditional dedicated circuit board test The machine can test the front and back of the circuit board at the same time. The test efficiency is very low and it is not suitable for mass production testing.



The board factory/coil factory chooses the digital meter LCR Meter to test the impedance characteristics of the coil. Only one set of coils can be tested at a time, and the low productivity cannot reduce the working hours.



Generally, LCR Meter only provides a single-channel test function, and can only test the impedance characteristics of a set of coils at a time. It is suitable for PCB/FPC wiring to wireless charging coil boards. The test efficiency is very low. The board manufacturers usually design and plan the circuit board. The coil array board forms multiple coils on the same PCB/FPC. Therefore, the demand for shipment inspection is to detect multiple coils at the same time to improve the output and test efficiency. However, the general LCR Meter cannot meet the test requirements of the board factory for multiple connections. .



MICROTEST PCB Multi-Set Coil Impedance Tester 9332 is the most efficient testing solution for WPC wireless charging applications. It adopts a precision four-wire impedance measurement method. The impedance measurement frequency band is up to 1MHz. It meets the working frequencies required by Qi or PMA Wireless Charging Association standards. Yes (Qi proposes 205KHz; PMA proposes 304KHz).



MICROTEST PCB Multi-Group Coil Impedance Tester 9332 The measurement range of electrical parameters of the three major components is the smallest resistance to 1mΩ, the inductance measurement is 0.1nH to 100H, the accuracy is 0.1%±1nH, and the capacitance is 0.01pF~1F. It is 0.1%±1pF, especially for copper foil etching or silver glue printed winding coils to provide 48-point testing. It can detect 24 sets of coils and multiple rows of boards at the same time, which greatly improves the test efficiency compared with single-channel LCR Meter.
 
Related Products