Intelligent Power

The 15W Wireless Power Transmitter board, based on the dsPIC® Microcontroller, is compatible with Qi medium power receivers. The development board enables a system efficiency of about 80% at full load and includes status LEDs and LEDs for power level indication.

Microchip’s dsPIC® Digital Signal Controllers (DSCs) offer a strong feature set for wireless power/charging applications in multiple market segments. The devices include a powerful CPU core, multiple PWM generators and advanced analog modules, allowing the customization of solutions. The multiple PWMs allow the control of the full bridge inverter and a front end Buck-Boost converter (required for fixed frequency topologies). In applications where the final solution requires the implementation of a proprietary protocol in addition to the standard, the dsPIC® DSC is ideal because of its computation capability. The CAN/LIN feature in the dsPIC® DSC makes it a good fit for automotive in-car wireless charging. The software structure can be setup efficiently for wireless charging such that basic kernel functions are packaged in library form and add-on/customized functions (such as foreign object detection, CAN, I2C etc.) are provided as API interfaces.

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The 200W  Wireless Power reference design implements a proprietary protocol developed from several years of R&D and granted U.S patents in the field of wireless power. The 200W solution is ideal for applications such as Power Tools, Vacuum Robots, Industrial Slip Rings, Small Electric Vehicles and Drones.

The Transmitter can be powered from an 8- 24V D.C input and the receiver can regulate it's output voltage within this range. The system operates at 90% efficiency at 100W power and a Z-distance of 5-10mm.



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The Digital Compensator Design Tool (DCDT) helps power supply designers by simplifying the overall process of determining the digital compensator coefficients and analyzing the control system performance. The DCDT incorporates all feedback gains and delays to provide the most accurate model of the control system. Along with analyzing the closed loop performance via Bode Plots, the user can verify stability by using the DCDT’s root locus and Nyquist plots. Once the desired performance is obtained the DCDT will automatically calculate the compensator coefficients and scaling parameters and generate software files to be used with the free SMPS Control Software Libraries.

The DCDT is topology independent which allows the most sophisticated converters to be analyzed. With a topology independent architecture, the tool requires a mathematical expression of the plant transfer function. This can be entered as a polynomial equation or in pole/zero form (up to 5th order systems). The tool also supports a data import option where the plant transfer function is a table of phase/gain vs. frequency data points that can be generated from a simulation environment or even from a network analyzer.
 
The DCDT currently allows users to develop voltage mode control and peak current mode control applications with support for average current mode control to be available shortly. Depending on the control scheme, different compensators may be required. The DCDT supports many different compensator types such as the digital 3-pole/ 3-zero (3P3Z), digital 2P2Z, digital PID, and analog type II/III. The analog type II/III compensators allow analog designers to input their existing analog compensator designs into the tool either by passive R/C components or by entering pole/zero frequency points. The tool will then generate the equivalent digital compensator streamlining the transition from analog to digital compensator design.

All MPLAB® X IDE. plug-ins, including this Digital Compensator Design Tool, are free, available and ready to install once the MPLAB® X IDE has been installed. Just follow the simple steps in the getting started tab to see all the available plug-ins and to install the DCDT.

The Digital Power Development Board is a demonstration board that provides the user a flexible measurement platform for all compatible Microchip dsPIC33’s Digital Power Plug-In Modules (DP PIMs).

DP PIM modules can be inserted into the mating socket in the middle of the Digital Power Development Board. All pins of the DP PIM are accessible via test loops or pin headers. The on-board Micro USB connector provides a DC power input to all circuitry. In addition, a mikroBUS™ socket is provided to extend functionality.

High performance power supplies are used in a wide variety of applications ranging from telecommunication equipment, industrial equipment, digital televisions, lighting, air conditioners and other home appliances. They all need solutions for power factor correction to improve overall efficiency, improve the input power factor, voltage regulation and Total Harmonic Distortion (THD) of the input current. Digital interleaved power factor correction methods provide many benefits over older PFC techniques including:

-Lower Cost for High Power Applications
-Smaller PFC Inductor and Magnetic volume
-Higher Power Density
-Lower Ripple
-Easy implementation of sophisticated control algorithms
-Flexible software modifications to meet specific customer needs
-Simpler integration with other applications

This reference design provides an easy method to evaluate the power, and features of SMPS dsPIC® Digital Signal Controllers for an Interleaved Power Factor Correction application. The Interleaved PFC reference design unit works with universal input voltage range, and produces a single high voltage DC output up to 350W of power. The reference design has six main blocks:

-Input EMI filter and rectifier
-Dual Phase Interleaved PFC Circuit with feedback
-Plug in module connector with a dsPIC33FJ16GS504
-User’s interface circuit with programming connector and push buttons
-12V and 3.3V power supply circuit, and
-Fault detection circuit for hardware protection

The dual phase interleaved PFC software implements three compensators for voltage, current and load balancing. It also has a feed-forward compensator based on input average voltage.

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This reference design provides an easy method to evaluate the power, and features of SMPS dsPIC® Digital Signal Controllers for high wattage AC - DC conversion application. Discover the many benefits of digital power control implementation in this reference design. The SMPS AC - DC Reference Design unit works with universal input voltage range, and produces multiple DC outputs. The design is based on a modular structure, which features three major power stages; the input stage, intermediate stage and the third stage, a Point of Load. The input stage is a PFC Boost Converter, the intermediate stage is a Phase-Shifted Zero Voltage Transition (ZVT) Converter, which includes ZVT Full Bridge Converter and Synchronous Rectification, and the third stage is Single-phase and Multi-phase Buck Converters. This reference design uses two dsPIC33F16GS504 devices; one used for the PFC Boost Converter and ZVT Full Bridge Converter, while the other dsPIC® DSC is used for Single-phase and Multi-phase Buck Converters.

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The dsPIC33EP128GS808 Development Board consists of a 80-pin microcontroller for operating on a standalone basis or interfacing with CAN/LIN/J2602 PICtail™ (Plus) Daughter Board. In the standalone mode, the board can be used for verifying the peripheral functionality. The board contains single order RC filters to emulate power supply functionality in open or closed loop mode along with ADC and PWM peripherals. The power supply transient behavior can also be simulated on the board. While interfacing with the PICtail™ (Plus) Daughter Board, the board can be used for dual channel CAN or LIN communication, without using the Explorer 16 board.

Brick DC-DC converters are widely used in data center, telecommunication and automotive applications, converting a nominal 48 V to different output nominal voltages such as 5 V, 9 V or 12 V. The standard dimension of the 1/16th brick converter is 33 x 22.9 mm (1.3 x 0.9 inch). The EPC9143 1/16th brick power module reference design, developed in collaboration with Efficient Power Conversion Corp. EPC, is designed for 48 V to 12 V DC/DC applications. It features the EPC2053 enhancement mode (eGaN®) field effect transistors (FETs), as well as a Microchip dsPIC33CK32MP102 16-bit digital signal controller (DSC). The height limit for this design is set to 10 mm (0.4 inch)

In DC/DC brick power module application, there is a continuous push towards higher power density given a fixed form factor. This reference design supports up to 300 W max. output power with 25 A output current at output voltages of 12 V, peak efficiency of >95%, and maximum power density of 730 W/in3 and demonstrates how dsPIC33C® DSCs are used to fully exploit the high performance of GaN FETs in fast switching Intermediate Bus Converter (IBC) applications.

The reference design firmware includes two modes of operation:

• Conventional Average Current Mode Control (ACMC): Multiloop controller with one outer voltage loop providing the same current reference IREF to two independent inner current loops for each phase, supporting control bandwidths of 2 kHz
• Advanced Type IV Voltage Loop Control (AVMC) with Enforced Cycle-By-Cycle PWM Steering, Gain Modulation and Current Balancing: A single, high-speed type IV voltage mode controller with enforced PWM steering is used to automatically create balanced phase currents in both phases of this interleaved converter. An underlying current balancing scheme compensates component tolerances and deviations over temperature. A built-in adaptive gain control algorithm stabilizes gain variations of the voltage loop controller during input- and output voltage transients, stabilizing cross-over frequency and output impedance, supporting control bandwidths of 25 kHz, for improved transient response, helping to minimize power distribution network (PDN) decoupling capacity

For more information on hardware related documentation, design files and purchasing information, please visit EPC’s product website: https://epc-co.com/epc/Products/DemoBoards/EPC9143.aspx

The EPC9148 demonstration board is an ultra-Thin, three-level DC-DC synchronous buck converter for high performance computing systems with 60V maximum input voltage, 12.5A maximum output current, 19V output voltage, measuring only 3.5 mm component height (5 mm height total including the printed circuit board) achieving a power density of 400 W/in³. It features the high-performance dsPIC33CK Digital Signal Controller (DSC), 40 V EPC2055 and the 100 V EPC2053 and EPC2038 GaN FETs.

This reference design, uses a flying capacitor at the input side to half the input voltage, increasing the dynamic bandwidth of the converter while still using a simple, non-isolated topology. For this purpose, the classical half-bridge drive has been split into an upper and lower half-bridge sections allowing to flip the flying capacitor voltage in every switching cycle. This approach allows the usage of switching devices with lower voltage ratings which have lower on-resistance and are overall faster than their higher voltage-rating counterparts. As a result, the slightly increased losses accumulated during the charge periods of the flying capacitor are compensated by the lower commutation losses of the switch stage ending up at an equal to slightly higher total efficiency. Biasing the buck topology from the flying capacitor directly instead of the input also doubles the inductor ripple frequency and lowers the ripple current peak value. This allows using lower inductance and smaller output capacitance, which further minimizes the size and increases the power density in comparison to a conventional buck converter topology (see EPC9153 for comparison).

This driving scheme works best with low voltage Gallium-Nitride switches due to their high switching speed and very low internal capacitance. The digital control stage is key to apply the delicate switching pattern and runtime balancing of the flying capacitor voltage.

For more information on hardware related documentation, design files and purchasing information, please visit EPC’s product website:
EPC9148 – 48 V Three-level Synchronous Buck Converter

The 300 W Bi-Directional 1/16th Brick Power Module reference design, developed in collaboration with Efficient Power Conversion Corp. (EPC), features the dsPIC33CK32MP102 Digital Signal Controller (DSC) which is ideal for Switched-Mode Power Supply (SMPS) applications as the main controller implementing interleaved, non-isolated synchronous buck converter power module. The power stage features the 12.5 A ePower™ Stage device EPC2152, a monolithic eGaN® FET half bridge power stage with integrated eGaN® FET drivers.

Embedding the driver circuit and the power FETs into the same monolithic die minimizes the common source inductance (CSI) between the high- and low-side FETs as well as the gate drive loop inductance. By matching the drivers to the power FETs results in extreme switching speeds of 48 V / 1 ns and minimum switching losses. The 3.3V compatible input levels allow directly driving the power stage from a dsPIC33 DSC’s pin without requiring additional components with maximum edge placement precision.

For more information on hardware related documentation, design files and purchasing information, please visit EPC’s product website:EPC9151KIT – 300 W Bi-Directional 1/16th Brick Evaluation Module

 

 The 6.5 mm thin EPC9153 power module is a 250W high-efficiency, high-performance synchronous buck converter with 60 V maximum input voltage, 12.5 A maximum output current, and programmable 12-20 V (default set to 20 V) regulated output voltage. Developed in collaboration with Efficient Power Conversion Corporation (EPC), it features the high-performance dsPIC33CK Digital Signal Controller (DSC), EPC2218 and EPC2038 eGaN® FETs.

While other reference designs such as EPC9148 have been optimized for highest power densities, this conventional non-isolated, hard-switching step-down converter is optimized for maximum output power capability at the highest efficiency (> 98.2%) with a maximum temperature rise of +40 K above ambient with passive cooling. With a total power density of only 112 W/in³, this converter is capable of providing up to 200% (500W / 25A max.) of its nominal output power for a limited amount of time at a peak efficiency of >98.2%. For test purposes, the over-power time limits have been set to 10ms for 150% and 1ms for 200% load. Each boost-mode time limit can be reconfigured and tailored to known test conditions by the user. On the other side of the load spectrum, the power consumption under no-load conditions has been minimized by applying a hysteretic standby mode, in which the converter still provides a regulated output voltage at only 280 mW total power consumption, supporting fast recovery of fixed frequency operation within 100 µsec.

The digital control loop in this design enables the non-linear switch-over between control modes across load conditions and self-protecting over-power boost modes, expanding the support of extreme load dynamics of high-performance loads like CPUs and FPGAs. The 250ps resolution fine-edge placement of the PWM module enables efficiency enhancements through dead-time optimization.

For more information on hardware related documentation, design files and purchasing information, please visit EPC’s product website:
EPC9153 – 250 W High Efficiency, Thin Power Module

Please note that all orders for this board are subject to design approval.  Contact your Microchip representative for details prior to placing your order.

Microchip’s EV08Z13A evaluation board features Microchip’s ZL380xx Timberwolf family of audio processors, capable of running the full family of Timberwolf technology firmware. The EV08Z13A is designed to help developers quickly prototype and demonstrate high-quality audio processing algorithms such as full-duplex stereo echo cancellation, beamforming, noise reduction, dynamic range control, audio event detection etc.  The EV08Z13A evaluation board can be used to easily demonstrate algorithms for 2-way voice communication, embedded speech recognition, and audio event detection applications by using the Timberwolf Demo Tool software. Once ready for application-specific customization, the EV08Z13A can be configured and tuned with the Microchip MiTuner GUI software.

 

Low Voltage Power Factor Correction (LVPFC) Development Kit offers safe voltage levels at moderate power while designing algorithms on a boost power factor correction topology. These algorithms can be applied on real systems under development with minimal changes. The LVPFC Development Board utilizes the dsPIC33EP128GS806 device, supporting full digital and advanced power control algorithm schemes.

LVPFC development kit utilizes Isolation transformer with turn ratio of 10:1 and a 50W Active load. These additional tools are available from our third party tools provider ASCALAB .

Active Load can be bought directly from microchip Direct. For isolation transformer you can get in touch with your regional Microchip's sales executive.

 

The MCP1630 Dual Synchronous Buck Regulator demo board is a dual output programmable power supply capable of 20A per output. Both outputs switch at 500 kHz 180° out of phase while powered from a +12V-input source. Additional features include programmable output voltage, power good output indication, sequencing, over current and over temperature.

The MCP19111 is a digitally-enhanced PWM controller. It combines a pure-analog PWM controller with a supervisory microcontroller making it a fast, cost-effective, and configurable power conversion solution. The MCP19111 is ideal for standard power conversion, LED drivers, and battery charging applications. The MCP19111 Evaluation Board demonstrates how the MCP19111 device operates in a synchronous buck topology over a wide input voltage and load range. Nearly all operational and control system parameters are programmable by utilizing the integrated PIC microcontroller core. MPLAB X IDE can be used in conjunction with a Graphical User Interface (GUI) plug-in to easily configure the MCP19111. Alternatively, the user can program the MCP19111 using their own firmware, tailoring it to their application. The evaluation board contains headers for ICSP™ (In-Circuit Serial Programming™) as well as I2C communication, pull-up and pull-down resistor pads and test point pads on each GPIO pin, and two push buttons for system development. 

Devices Supported:   MCP19111

PLEASE NOTE: This kit does NOT contain the hardware programming tool. Please use Microchip’s PICKIT3 (PG164130).

The MCP19111 is a digitally-enhanced PWM controller. It combines a pure-analog PWM controller with a supervisory microcontroller making it a fast, cost-effective, and configurable power conversion solution. The MCP19111 is ideal for standard DC-DC conversion, LED drivers, and battery charging applications. The ARD00609 Demo Board demonstrates how the MCP19111 device operates as a PMBus-enabled POL converter over a wide input voltage and load range. The firmware is preloaded in the MCP19111, no software development is needed. An USB to PMBus bridge is included on board allowing direct communication with a PC. Nearly all operational and control system parameters are programmable and readable via the PMBus. A full featured and easy to use GUI may be downloaded from the Microchip site. Alternatively, the user can program the MCP19111 using their own firmware, tailoring it to their application. The evaluation board contains headers for ICSP™ (In-Circuit Serial Programming™) I2C / PMBus communication and mini USB connector.

Devices Supported: MCP19111

PLEASE NOTE: This kit does NOT contain the hardware programming tool. Please use Microchip’s PICKIT3 (PG164130).

The Three Coil Wireless Power Transmitter is based on the dsPIC33CH128MP506 device and implements a fixed frequency power control topology. The front-end buck-boost control is managed by the dsPIC33CH device. The transmitter includes CAN for ease of integration into the automotive environment. The transmitter also enables the implementation of NFC.

Microchip’s dual-core dsPIC33CH devices integrates the wireless power software stack along with CAN-FD software, Front-end Buck- Boost control, NFC software stack, and Crypto Authentication software. The software is partitioned between the two cores such that the wireless power control is implemented independently on one core and all the remaining functions are implemented in the other core. This partitioning facilitates independent code development on separate modules and enables parallel execution of the Qi protocol and other functions such as NFC

Microchip’s Digital Pure Sine Wave Uninterruptible Power Supply (UPS) Reference Design is based on the dsPIC33F “GS” series of digital-power Digital Signal Controllers (DSCs). This reference design demonstrates how digital-power techniques when applied to UPS applications enable easy modifications through software, the use of smaller magnetics, intelligent battery charging, higher efficiency, compact designs, reduction in audible and electrical noise via a purer sine-wave output, USB communication and low-cost overall bill-of-materials. This reference design is Royalty Free. Click here for a list of complete documentation and software & hardware design information.

This reference design is implemented using a single dsPIC33F “GS” digital-power DSCs from Microchip that provides the full digital control of the power conversion and system management functions. As shown in this reference design the dsPIC33F ‘GS’ devices enable designers to easily and cost effectively create products using advanced switching techniques such as LLC that lower switching losses and enable efficiencies as high as 95%. The DC to DC LLC Converter Reference Design is royalty free when used in accordance with the licensing agreement.

The Digital Pure Sine Wave UPS System operates in two modes:

Standby Mode – Operational in the presence of AC line voltage; battery is charged in this mode.
UPS Mode – Operational during power outage; the system switches to a function called inverter to provide power to load. Charge stored in the battery is converted to AC output.

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Microchip’s Grid-Connected Solar Microinverter Reference Design demonstrates the flexibility and power of SMPS dsPIC® Digital Signal Controllers in Grid-Connected Solar Microinverter systems. This reference design has a maximum output power of 215 Watts and ensures maximum power point tracking for PV panel voltages between 20V to 45V DC. High efficiency was achieved by implementing a novel interleaved active-clamp flyback topology with Zero Voltage Switching (ZVS).

This reference design is implemented using a single dsPIC33F “GS” digital-power DSCs from Microchip that provides the full digital control of the power conversion as well as all system management functions. As shown in this reference design the dsPIC33F ‘GS’ devices enable designers to easily and cost effectively develop products using advanced switching techniques / topologies that lower switching losses and improve overall system efficiency. The Grid-Connected Solar Microinverter Reference Design is royalty free when used in accordance with the licensing agreement.

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The MPLAB Starter Kit for Digital Power kit uses the dsPIC33EP64GS502 DSC to implement a buck converter and a boost converter. It is a digitally controlled power supply board that consists of one independent DC/DC synchronous Buck converter and one independent DC/DC Boost converter. Each converter can drive its on-board MOSFET controlled resistive load or an external load. The board has an LCD display for voltage, current, temperature and fault conditions, and an integrated programmer/debugger, all powered by the included 9 V power supply.

The TDTTP4000W066C 4kW bridgeless totem-pole power factor correction (PFC) evaluation board (developed by Transphorm) achieves very high efficiency single-phase AC-DC conversion. Using GaN FETs in the fast-switching leg of the circuit and low-resistance MOSFETs in the slow-switching leg of the circuit results in improved performance and efficiency.

The development board integrates Microchip's dsPIC33CK Digital Power PIM with Transphorm’s 4 kW AC-to-DC bridgeless totem pole power factor correction (PFC) evaluation board featuring SuperGaN™, the company’s latest Gen IV GaN technology.

The firmware can be downloaded from the software section below.

TDTTP4000W066C_0v1-KIT is for evaluation purposes only and is available from Transphorm.

For more details and users guide, refer to Transphorm website.

Microchip’s Platinum-Rated 720W AC-DC Reference Design demonstrates the flexibility and power of SMPS dsPIC® Digital Signal Controllers in switch-mode power supplies. This reference design has a peak efficiency of 94.1% and achieves the ENERGY STAR CSCI Platinum Level. It features a 2-phase interleaved power factor correction boost converter followed by a 2-phase interleaved two-switch forward converter with synchronous rectification. 

This reference design is implemented using two dsPIC33F “GS” digital-power DSCs from Microchip that provide the full digital control of the power conversion as well as all system management functions. As shown in this reference design the dsPIC33F ‘GS’ devices enable designers to easily and cost effectively develop products using advanced adaptive control algorithms that help improve efficiency at light loads. The Platinum-Rated 720W AC/DC Reference Design is royalty free when used in accordance with the licensing agreement.

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This reference design provides an easy method to evaluate the power, and features of SMPS dsPIC® Digital Signal Controllers in high density quarter brick DC-DC converters for intermediate bus architectures(IBA). This reference design is implemented using a single dsPIC33F “GS” digital-power DSCs from Microchip that provides the full digital control of the power conversion and system management functions. As shown in this reference design the dsPIC33F ‘GS’ devices enable designers to easily and cost effectively create products using advanced switching techniques such as Phase Shift Full Bridge (PSFB) topology that lower switching losses and enable efficiencies as high as 94%. The reference design also supports the Full Bridge topology through minor hardware modifications. The Quarter brick DC to DC Converter Reference Design is royalty free when used in accordance with the licensing agreement.

This reference design works with telecom input range 36V – 76V DC and provides 12V with 200W power. Designed with planar magnetics, this reference design implements various non-linear techniques, which improves the performance and efficiency.

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The advanced Microchip wireless receiver is compatible with Qi 1.2 base stations and is able to draw up to 15W of power that can be used to run portable devices or charge batteries. It allows users to quickly incorporate this receiver into their designs without dealing with the Qi protocol state machine and communication.

This implementation consists of a wireless receiver and a synchronous buck converter used to charge batteries. A low-cost, general purpose 8-bit microcontroller handles the Qi state machine, communication to and from the base station, the Li-Ion battery charging state machine, and regulates the buck converter output voltage and input current. The advanced Microchip Qi1.2 wireless receiver is backwards compatible with Qi1.1 5W base station and should be able to detect the base station capabilities.

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