Microchip Technology Inc

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 is developed by Microchip design partner Fu Da Tong. The transmitter is based on the dsPIC® device and the receiver is based on the PIC16F® device. The reference design implements a proprietary protocol developed from 27 granted U.S patents in Communication, Power Control, and Foreign Object Detection. The 200W solution is ideal for applications such as Power Tools, Vacuum Robots, Industrial Slip Rings, Small Electric Vehicles and Drones.

The Transmitter is powered from a 24V rail and the receiver regulates the output voltage to 24V. 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.
Microchip’s Digital High Intensity Discharge (HID) Ballast Reference Design showcases the benefits digital control can bring to an HID ballast. HID ballasts must go through the complicated process of igniting the HID bulb and then transitioning it into steady state operation. Typically HID ballasts require a large set of analog controllers to properly control the HID lamp. However, using digital control techniques a single Microchip dsPIC device is able to control the entire HID ballast, reducing the ballast’s components and costs. Microchip’s Digital HID Ballast Reference Design is designed to interface to a standard automotive HID lamp. The reference design uses 9-16VDC and outputs 35W of steady state power and reaches an efficiency of over 85%. To handle changes in the input voltage and current, the reference design implements under voltage, over voltage, and over current protection. Using the reference design, a standard HID automotive bulb is able to reach steady state light output in under 150 seconds. Finally, since size is important in most ballast applications, the reference design uses planar magnetic to reach a small size of 9mm x 60mm x 80mm, commonly referred to as a “slim” ballast form factor. All documentation, schematics, and software can be found below. This reference design is royalty free when used in accordance with the licensing agreement. For more information view the complete HID Ballast Reference Design Webinar

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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 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).
Microchip’s 200W DC/DC LLC Resonant Converter Reference Design operates over a wide input voltage range (350 - 420Vdc) with a nominal input of 400V, providing a 12V DC output, while maintaining high-voltage isolation between the primary and secondary. High efficiency is achieved through Zero Voltage Switching (ZVS) on the half-bridge converter and Zero Current Switching (ZCS) on the synchronous rectifier. A synchronous rectifier is implemented over the traditional full wave rectifier for improved efficiency. The DC-DC LLC Resonant Converter Reference Design utilizes Microchip’s digital power conversion dsPIC for unique “adaptive” control of the half-bridge converter and synchronous rectifier.

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.

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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.



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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This reference designs hardware is not currently available for purchase. You can request a demonstration. Please contact local sales office in your geography to request a demonstration.
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