The STMicroelectronics STWBC-MC 15W wireless battery-charger transmitter
can control multiple charging coils, making charging less hooked in to the precise position of the battery-powered device.
Compliant with the newest Qi 1.2.4 specification, the STWBC-MC is that the first transmitter specifically designed to support the Qi MP-A15 EPP (Extended Power Profile) topology. additionally to detecting a legitimate receiver and selecting the foremost efficient coil for power transfer, it ensures extended Foreign Object Detection (FOD) through bi-directional communication with the receiver. The STWBC-MC also supports the proprietary wireless fast-charge extensions of leading smartphone manufacturers.
To ensure fast and stable charging for all kinds of devices, the STWBC-MC monitors coil current and voltage. By integrating a digital DC-DC controller, it delivers the specified power to the coil at a hard and fast frequency then minimizes interference with other systems inside smartphones and tablets. Given the EU’s intention to increase the scope of the Radio Equipment Directive (RED) to incorporate wireless-charging transmitters, and restrict H-field emissions above 145kHz to -5dBm, the STWBC-MC’s low-EMI design eases compliance.
ST’s patented triple-path modulation technique for communication between the transmitter and receiver increases noise immunity and therefore the IC’s low standby consumption minimizes wasted energy when not charging.
Users can start development quickly using the STEVAL-ISB047V1 evaluation kit for the STWBC-MC and therefore the STSW-STWBCGUI graphical interface for ST’s STWBC transmitter ICs. The GUI are often wont to download the STSW-ISB047FW dedicated firmware for the STWBC-MC, and to watch performance and fine-tune parameters.
The STWBC-MC is in production, priced from $3.375 for orders of 1000 pieces. The STEVAL-ISB047V1 is out there now from st.com or distributors, for $170.
source: https://timestech.in/advanced-qi-compliant-transmitter-from-stmicroelectronics-ensures-fast-and-stable-15w-multi-coil-wireless-charging-for-mobile-devices/
Compliant with the newest Qi 1.2.4 specification, the STWBC-MC is that the first transmitter specifically designed to support the Qi MP-A15 EPP (Extended Power Profile) topology. additionally to detecting a legitimate receiver and selecting the foremost efficient coil for power transfer, it ensures extended Foreign Object Detection (FOD) through bi-directional communication with the receiver. The STWBC-MC also supports the proprietary wireless fast-charge extensions of leading smartphone manufacturers.
To ensure fast and stable charging for all kinds of devices, the STWBC-MC monitors coil current and voltage. By integrating a digital DC-DC controller, it delivers the specified power to the coil at a hard and fast frequency then minimizes interference with other systems inside smartphones and tablets. Given the EU’s intention to increase the scope of the Radio Equipment Directive (RED) to incorporate wireless-charging transmitters, and restrict H-field emissions above 145kHz to -5dBm, the STWBC-MC’s low-EMI design eases compliance.
ST’s patented triple-path modulation technique for communication between the transmitter and receiver increases noise immunity and therefore the IC’s low standby consumption minimizes wasted energy when not charging.
Users can start development quickly using the STEVAL-ISB047V1 evaluation kit for the STWBC-MC and therefore the STSW-STWBCGUI graphical interface for ST’s STWBC transmitter ICs. The GUI are often wont to download the STSW-ISB047FW dedicated firmware for the STWBC-MC, and to watch performance and fine-tune parameters.
The STWBC-MC is in production, priced from $3.375 for orders of 1000 pieces. The STEVAL-ISB047V1 is out there now from st.com or distributors, for $170.
source: https://timestech.in/advanced-qi-compliant-transmitter-from-stmicroelectronics-ensures-fast-and-stable-15w-multi-coil-wireless-charging-for-mobile-devices/
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