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Qi® Wireless Charger and Receiver | High-Wattage Wireless Charger and Receiver

Wireless charging works by transferring energy from the charger to a receiver via electromagnetic induction. The charger uses an induction coil to create an alternating electromagnetic field, which the receiver coil converts back into electricity to be fed into a battery or directly to an application. Typically, the charger and receiver should be close and correctly aligned over the top of each other, although a set orientation is normally not necessary.

Developed by the Wireless Power Consortium, the Qi wireless charging standard defines wireless power transfer using inductive charging over distances of up to 4 cm. A Qi-based wireless charging system uses resonant inductive coupling to enable a charging pad to transfer power to a compatible device when it is placed on top of the pad.

Our dsPIC® Digital Signal Controllers (DSCs), with their multiple Pulse-Width Modulators (PWMs), high-speed Analog-to-Digital Converters (ADCs) and programmable core, are very effective in optimizing wireless charging solutions. To help jump start your development, we offer reference designs for 15W single- and multi-coil Qi-compliant transmitters.

For applications that may require higher wattage, we also offer the 200W/300W Wireless Power Reference Design that implements a proprietary protocol that is ideal for applications such as power tools, robotic vacuums, industrial slip rings, small electric vehicles and drones.

191126-MSLD-DIAG-WirelessCharger-7x5

Wireless Power: Three-Coil Transmitter

Wireless Reference Designs


Would you like to learn more about the advantages of switching to digital power supplies? Click on the link below to download our Features, Value and Benefits of Digital Control for Power Supplies white paper.

Recommended Products


dsPIC® Digital Signal Controllers


Product Core Number of Pins Program Flash (KB) RAM (KB) IC/OC/
MCCP/SCCP
SMPS PWM ADCs Number of Op Amps/ PGAs Number of Analog Comparators Number of UART/I2C/
SPI Interfaces
dsPIC33EP 'GS' Family 70 MIPS Single Core Up to 80 Up to 128 Up to 8 4/4 16 Channels 1 nS 22 × 12-bit, 5x S/H 2 4x
2/2/3
dsPIC33CK 'MP' Family 100 MIPS Single Core Up to 80 Up to 256 Up to 24 9 16 Channels 250 pS 24 × 12-bit,
3x S/H
3 3 3/3/3
dsPIC33CH 'MP' Family 100 MIPS Dual Core Up to 80 Up to 512/72 Up to 48 + 16 8 + 4 8+4 Channels 250 pS 18 × 12-bit, 4x S/H 3 3 3/3/3

Legend:
IC = Input Capture
OC = Output Compare
MCCP = Multiple Capture/Compare/PWM
SCCP = Single Capture/Compare/PWM
SMPS PWM = Power Supply Pulse Width Modulation

Voltage Regulators


  • MAQ5281 – High-performance, low dropout regulator, 25 mA, 120V, adjustable Vout from 1.27 to 5.5V.
  • MCP1790 – 30V, 70 mA, load dump protected linear voltage regulator
  • MCP16311 – 30V, 1A PFM/PWM high-efficiency synchronous buck regulator
  • MCP16331 – 50V 1A non-synchronous buck regulator

CAN Transceivers


  • ATA6562 – High-speed CAN FD transceiver with standby and silent mode and WUP
  • MCP2561FD – High-speed CAN FD transceiver with standby mode and SPLIT pin
  • ATA6570 – High-speed CAN FD transceiver with Partial Networking

Temperature Sensors


  • MCP9700A – Low-power linear active thermistor IC, analog output
  • MCP9800 – 2-wire high-accuracy temperature sensor, digital output
  • MCP9504 – Temperature switch with selectable hysteresis

MOSFET Drivers


  • MIC4607 – 85V, three-phase MOSFET driver with adaptive dead-time, anti-shoot-through and overcurrent protection

Products

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View All Parametrics
Product Pricing CWG/COG PSMC Op Amps Comparators Internal Voltage Reference (Bandgap)
PIC16F1764 0.9600 1 0 1 2 Yes
PIC16F1765 1.0300 1 0 1 2 Yes
PIC16F1768 1.1300 2 0 2 4 Yes
PIC16F1769 1.2100 2 0 2 4 Yes
PIC16F1773 1.4800 3 0 3 6 Yes
PIC16F1776 1.5500 3 0 3 6 Yes
PIC16F1777 1.9200 4 0 4 8 Yes
PIC16F1778 1.6500 4 0 3 6 Yes
PIC16F1779 2.0200 4 0 4 8 Yes
PIC16F753 0.6600 1 0 1 2 Yes

Development Tools


Our Digital Power Design Suite includes the Digital Compensator Design Tool (DCDT), MPLAB® Code Configurator (MCC), Microchip compensator libraries and design examples. These four packages combine to provide the tools and required guidance for developing complete digital power designs.

MPLAB® Starter Kit and Development Boards


Our starter kits contain everything for you to get started, including demonstration hardware and software and an integrated debugger, allowing you to quickly evaluate a silicon and software solution.

Development Boards for Full-Digital Power Controllers


dsPIC33C Digital Power Starter Kit (DM330017-3) - This starter kit is intended to introduce and demonstrate the capabilities and features of the latest family of dsPIC33C devices targeted for digital power applications.

MPLAB Starter Kit for Digital Power (DM330017-2) – Easily explore the digital power conversion capabilities and features of the dsPIC33F GS family of DSCs.

Low-Voltage PFC Development Kit (DV330101) – The Low-Voltage Power Factor Correction (LVPFC) Development Kit offers safe voltage levels at moderate power while designing algorithms on a boost Power Factor Correction (PFC) topology. These algorithms can be applied on real systems under development with minimal changes.

Digital Power Development Board (DM330029) – The Digital Power Development Board provides a flexible measurement platform for all compatible dsPIC33 Digital Power Plug-In Modules (DP PIMs)

Digital Power PIMs – Compatible with the Digital Power Development Board and the Low-Voltage PFC Development Kit, Digital Power PIMs (DP PIMs) provide access to the dsPIC33 DSC’s analog inputs, the Digital-to-Analog Converter (DAC) outputs, the Pulse-Width Modulation (PWM) outputs and the General-Purpose Input and Output (GPIO) ports.

dsPIC33CH Curiosity Development Board (DM330028-2) – The dsPIC33CH Curiosity Development Board is s a cost–effective development and demonstration platform for the dsPIC33CH512MP508 family of dual–core, high–performance DSCs. It offers a configurable Switch Mode Power Supply (SMPS) test circuit that can be operated in buck, boost, or buck-boost modes, using either voltage mode or peak current mode control.

dsPIC33CK Curiosity Development Board (DM330030) – The dsPIC33CK Curiosity Development Board (DM330030) is a cost-effective development and demonstration platform for the dsPIC33CK family of single-core high performance digital signal controllers.

dsPIC33EP128GS808 Development Board (DM330026) – This development board consists of an 80-pin DSC and can be used to verify peripheral functionality, emulate power supply functionality and simulate transient behavior.

Programmers/Debuggers


These debuggers and programmers, with features ranging from basic debugging to advanced emulation capability, work across all 16-bit MCUs and dsPIC DSCs, as well as the rest of Microchip’s MCU and MPU products, and are USB powered and fully integrated with MPLAB X IDE.

MPLAB ICD 4 In-Circuit Debugger – Cost-effective, high-speed programmer and debugger

MPLAB PICkit™ 4 In-Circuit Debugger – Low-cost programmer and debugger

Software Tools


The MPLAB® development ecosystem, which supports all of our MCU and MPU products, is a single tool chain that makes the development of intelligent power applications using our 16-bit PIC® microcontrollers and dsPIC® Digital Signal Controllers (DSCs) easy.

MPLAB Device Blocks for Simulink®

MPLAB X Integrated Development Environment (IDE)

MPLAB XC16 Compilers – Full-featured compilers with free downloads available

Third-Party Real-Time Operating Systems (RTOS) – RTOS supporting PIC MCUs and dsPIC DSCs

Third-Party Software Tools – Supplemental software tools for 16-bit PIC MCUs and dsPIC DSCs

Code Examples


Title Download
CE002 Configuring 10-Bit dsPIC DSC A/D Converters for 1 Msps Conversion Rate Download
CE021 - dsPIC SMPS Buck Converter with PID Control Download
CE031 - dsPIC SMPS ADC Triggered by PWM Download
CE028 - dsPIC SMPS Complementary PWM Download
CE020 - Standard Mode PWM using dsPIC SMPS DSC Download
CE032 - dsPIC SMPS ADC Interrupt Vectoring - Assembly Download
PMBus™ Stack Download

Development Tool Source Code


Title Download
Buck/Boost Converter PICtail Plus Daughter Board Source Code Download

Documentation


Title Download
AN1106 - Power Factor Correction in Power Conversion Applications Using the dsPIC® DSC Download
AN1278 - Digital Power IPFC Reference Design Application Note Download
AN1207 - Switch Mode Power Supply (SMPS) Topologies (Part II) Download
AN1114 - Switch Mode Power Supply (SMPS) Topologies (Part I) Download
AN2321 - Solar MPPT Battery Charger for the Rural Electrification System Download
TB081 - Soft-Start Controller for Switching Power Supplies Download
AN1335 - Phase-Shifted Full-Bridge (PSFB) Quarter Brick DC/DC Converter Reference Design Using a dsPIC® DSC Download
AN2375 - Advantages of Slope Compensation with CIPs Download
AN2450 - Oscillator Jitter and Jitter-Causing Events Download
AN1338 - Grid-Connected Solar Microinverter Ref. Design Using a dsPIC® DSC Download
TB3160 - Primary Side Power Limiter and Control Download
AN1336 - DC/DC LLC Reference Design Using the dsPIC® DSC Download
AN1086 - Switching Power Supply Design with the PIC16F785 Download
AN2456 - Configurability in a Switched Mode Power Supply Controller Download
TB3167 - Advantages of the Operational Amplifier Peripheral in PIC Microcontrollers for SMPS Applications Download
AN2721 - Getting Started with Dual Core - Getting Started with Dual Core Download
TB062 - Frequently Asked Questions (FAQs) About dsPIC® DSC SMPS Devices Download
Title Download
16-bit Peripherals Quick Reference Guide Download
SEC1110/1210 - Smart Card Controllers with USB, SPI and UART Interfaces Download
Connectivity Solutions for Embedded Design Download
32-bit MCU Connectivity Sell Sheet Download
Intelligent Power Supply Design Solutions Brochure Download

dsPIC® DSC Wireless Power and Charging Solutions

Learn how the dsPIC33 Digital Signal Controller which includes a powerful DSP Core, high-speed ADCs, high resolution PWMs, provides a high level of programmability, enables standards based wireless charging solutions. The dsPIC33 based 15W transmitter complies with the Qi standard, and supports CAN, NFC and authentication. The 200W Transmitter/Receiver solution developed with a custom controller is targeted for applications such as power tools, industrial robots etc., provides greater than 90% efficiency and includes an advanced foreign object detection scheme.