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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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Возможности:

    • Low power consumption at no load
    • Programmable soft-start
    • Voltage, Current, Temperature monitoring & Protection
    • Primary and secondary MOSFET control
    • Full Digital Control

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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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Возможности:

    • High-frequency design
    • Adjustable Charging current
    • Efficiency of 84%
    • Pure sine wave output with THD <3%
    • Mains to Battery Transfer time < 12 ms
    • Supports Crest Factor of 3:1
    • Minimum Power Factor(Leading/Lagging) of 0.65
    • Fault indications
    • USB Communication with PC
    • LCD front panel

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Summary
The PICDEM™ Lab II Development Board is a development and teaching platform for use with 8-bit PIC® microcontrollers (MCUs). At its center, a large prototyping breadboard enables users to easily "experiment" with different values and configurations of analog components for system optimization. Several external connectors allow for user-customizable expansion, while our library of labs and application notes enrich the development experience. The PICDEM Lab II Development Board is also fully compatible with our latest software development environment.

Embedded Development Powerhouse
The original PICDEM Lab Development Board has remained one of the most popular development tools for PIC MCUs since its introduction. Microchip has taken this concept and expanded it for 21st century embedded development. The PICDEM Lab II Development Board supports any 8-bit PIC microcontroller (6-, 8-, 14-, 18-, 20-, 28- and 40-pin footprints), and provides an expansive array of connections for programming, I/O, analog and communications interfaces. The PICDEM Lab II Development Board will be a valuable resource to engineers across a broad spectrum of specialties, from analog designers looking to explore the power and flexibility of MCU-based systems to engineering professors seeking a flexible and relevant teaching tool that they can add to their curricula.

Hardware Flexibility Enables Experimentation
In keeping with the original, the PICDEM Lab II Development Board was designed to give you a simple development experience without the hassle of and expense of building a custom PCB in the early stages of your project. You can design a system with one or several PIC MCUs, since power and programming connections are replicated across all of the available sockets. Off- chip connections can be made in any manner, and the expansive breadboard provides a convenient area to add analog signal conditioning and drive components to a design. Three separate power supplies give the capability to provide fixed or variable voltage to a system. With several industry-standard interfaces in addition to a system of configurable conntectors, the off-board expansion possibilities are abundant.


Please visit our PICDEM Lab II Design Center for more information
Возможности:

    Please visit our PICDEM Lab II Design Center for more information

    • Supports all 8-bit PIC MCUs from 6 to 40 pins
    • Programming headers and power connections for all MCU sockets
    • Three individual power supplies
    • 5V, 3.3V, variable (1.5-4.5V)
    • Large breadboard area for external analog and sensor connections
    • External connections for industry-standard communications and expansion interfaces
    • Lab hardware and documentation for four labs included in the box
    • RS232 and Bluetooth® Low Energy interfaces
    Connection Points
    • Power Distribution Connectors - Supply power to other parts of your design using one of the PICDEM Lab II Development Board's on-board power supplies.
    • USB to I2C™ - Use the USB interface for diagnostic or control interfaces without worrying about the specifics of USB communication. USB to I2C conversion is handled automatically.
    • MikroElectronika Click Board Support - Two sockets give you access to nearly 100 inexpensive add-on boards, with capabilities ranging from GPS to alcohol sensing.
    • LCD Module Connector - A simple 16-pin connector supports a number of standard segment LCD module interfaces.
    • 20-pin Add-On Board Connector - Design your own add-on boards for sensor connectivity or motor drive, and connect them with this simple interface.

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Описание:
The MPLAB Starter Kit for Digital Powerkit 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 convertercan drive its on-board MOSFETcontrolled resistive load or an external load. The board hasan LCD display for voltage, current, temperature and faultconditions, and an integrated programmer/debugger, allpowered by the included 9 V power supply.



Возможности:

    • dsPIC33EP64GS502 – Low-cost 16-bit digital power conversion DSC
    • One independent DC/DC synchronous Buck converter
    • One independent DC/DC Boost converter.
    • LCD display for voltage, current, temperature and fault conditions
    • On-board In-Circuit Debugger /Programmer via USB
    • On-board programmable resistive loads of up to 3W (0.5W, 1.25W, 1.25W)
    • Hardware slope compensation for peak current mode implementations
    • On-board temperature sensor
    • Compact Design – 4” x 2.5” board
    • Powered via 9V power supply (included)

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The TPS50601-SP MINI POL converter is designed to demonstrate reduced footprint that can be achieved using a single sided layout. The footprint can be further reduced if configured in dual sided layout. Reference Schematic and BOM are attached for the Mini POL with recommended space qualified components. Output voltage is configured to be 1.2V. The TPS50601-SP DC/DC converter is designed to provide up to a 6-A output in single phase operation (TPS50601SPEVM-S) and up to 12 A in dual phase operation (TPS50601SPEVM-D), when each phase is configured to provide 6-A per phase. TPS50601-SP will operate with switching frequency of 100-kHz to 1-MHz range. For the TPS50601SPEVM-MINI, 250 kHz was selected to optimize size and efficiency of EVM. The high-side and low-side MOSFETs are incorporated inside the TPS50601-SP package along with the gate drive circuitry. The low drain-to-source on-resistance of the MOSFET allows the TPS50601-SP to achieve high efficiencies and helps keep the junction temperature low at high output currents. The compensation components are external to the integrated circuit (IC), and an external divider allows for an adjustable output voltage. Additionally, the TPS50601-SP provides adjustable soft start, tracking, and undervoltage lockout inputs.

Возможности:

Integrated 55-mΩ/50-mΩ MOSFETs Split Power Rail: 1.6 V to 6.3 V on PVIN Power Rail: 3 V to 6.3 V on VIN SEL Latchup Immune to LET = 85 MeV/mg-cm2 Total Dose (TID) tolerance = 100kRad (Si) Flexible Switching Frequency Options: – 100-kHz to 1-MHz Adjustable Internal Oscillator– External Sync Capability from 100 kHz to 1 MHz– Sync Pin Can Be Configured as a 500-kHz Output for Master/Slave Applications 0.795-V ±1.258% Voltage Reference at 25°C Monotonic Start-Up into Pre-Biased Outputs Adjustable Slow Start and Power Sequencing Power Good Output Monitor for Undervoltage and Overvoltage Adjustable Input Undervoltage Lockout For SWIFT™ Documentation, visit http://www.ti.com/swift TPS50601-SP available in Military (–55°C to 125°C) Temperature Range (1) (1) Custom temperature ranges available

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Описание:
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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Возможности:

    • Primary and Secondary MOSFET control
    • Active Current Share
    • Remote ON/OFF
    • Programmable soft start
    • Controlled Fall time
    • Voltage, Current, Temperature monitoring & Protection
    • Configurable output voltage
    • Full Digital Control
    • Supports both Full Bridge and Phase Shifted Full Bridge topologies

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Описание:
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.


Do you want a demonstration?

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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Возможности:

    • Primary and Secondary MOSFET control
    • Operates at universal input voltage (85-265Vac, 45-65Hz)
    • Operates up to 300W sustained output
    • Full Load operation on 3.3V and 5V outputs when loaded individually and/or simultaneously:
      • 3.3V output @ 56A
      • 5V output @ 23A
    • Power Factor Performance of 0.99 at full load (110Vac/220Vac)
    • Fault Indication and Protection
    • Excellent Dynamic Load Performance and Output Sequencing
    • Separate boards, one for digital signals (Signal Board) and the other for the Power stages (Power Board)
    • Signal Board has two dsPIC33F16GS504 devices controlling different power stages
    • MPLAB® ICD 2 or REAL ICE support

Документация:
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