The WM3737 chip devices provide the ADC conversion and control while integrating the digital control required complying with the Qi v1.1 communication protocol. The WM3737RU also is a main component within WM3737RSB (SIP solution) module and enables a complete contact-less power transfer system for a wireless power supply solution. The WM3737chip devices integrate a digital control, and accurate voltage and current loops to ensure high efficiency and low power dissipation. The WM3737 chip device also can be connected with a low resistance synchronous rectifier, low-dropout regulator, and accurate voltage and current loops to ensure high efficiency and low power .

The WM3737 also includes a digital controller that can calculate the amount of power received by the mobile device within the limits set by the WPC v1.1 standard. The controller will then communicate this information to the transmitter in order to allow the transmitter to determine if a foreign object is present within the magnetic interface and introduces a higher level of safety within magnetic field. This Foreign Object Detection (FOD) method is part of the new requirements under the WPC v1.1 specification.