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Overview
| Topology | Wireless Power Transfer |
| IC revision | 1 |
Description
This document provides a possible approach to the design of a wireless power receiving coil for low-power applications. Manyparameters are involved in such a design flow, therefore different approaches are possible according to which one is consideredthe most relevant one (efficiency, overall quality factor of the coupled resonant circuits, etc.).The overall efficiency of a wireless power transfer system is generally a reasonable starting point. Mechanical constraints and/ornon-ideal alignment of the coils, as well as data-transfer requirements (e.g. ASK modulation index at transmitter side), areremarkably impacting on the whole design.
Typical applications
- Wireless Power, Portable Devices
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Compliance | Size | L(µH) | IR(A) | RDC max.(mΩ) | fres(MHz) | Q(%) | P(W) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-WPCC Wireless Power Transfer Transmitter Coil, Qi - A13, 60 x 52 x 4 mm | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Transmitter Coil | ComplianceQi - A13 | Size60 x 52 x 4 mm | Inductance12 µH | Rated Current8 A | DC Resistance72 mΩ | Self Resonant Frequency16 MHz | Q-Factor120 % | Power Capability [1]150 W | ||||
 | WE-WPCC Wireless Power Transfer Transmitter Coil, works with Qi Tx IC's, Ø 20 x 2.8 mm | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Transmitter Coil | Complianceworks with Qi Tx IC's | SizeØ 20 x 2.8 mm | Inductance6.8 µH | Rated Current2.5 A | DC Resistance130 mΩ | Self Resonant Frequency20 MHz | Q-Factor42 % | Power Capability [1]50 W | ||||
 | WE-WPCC Wireless Power Transfer Receiver Coil, works with Qi Rx IC's, 40 x 40 x 1.2 mm | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Receiver Coil | Complianceworks with Qi Rx IC's | Size40 x 40 x 1.2 mm | Inductance8 µH | Rated Current5 A | DC Resistance80 mΩ | Self Resonant Frequency16 MHz | Q-Factor30 % | Power Capability [1]80 W | ||||
 | WE-WPCC Wireless Power Transfer Receiver Coil, works with Qi Rx IC's, Ø 15 x 0.6 mm | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Receiver Coil | Complianceworks with Qi Rx IC's | SizeØ 15 x 0.6 mm | Inductance11.8 µH | Rated Current0.7 A | DC Resistance750 mΩ | Self Resonant Frequency22 MHz | Q-Factor13 % | Power Capability [1]5 W |