Power Conversion Application Notes

Microchip Power Conversion Application Notes Summary

AN793: Power Management in Portable Applications: Understanding the Buck Switch Mode Power Converter
This is an in-depth application note describing the design of buck topology Switch Mode Power Supplies (SMPS) for use in portable applications. Download here.

AN947: Power Management in Portable Applications: Charging Lithium-Ion/Lithium-Polymer Batteries
This application note focuses on the fundamentals of charging Lithium-Ion/Lithium-Polymer batteries, including a linear, stand-alone solution utilizing Microchip’s MCP73841. Download here.

AN960: New Components and Design Methods Bring Intelligence to Battery Charger Applications
Leveraging the benefits of digital and mixed-signal power supply designs, this application note describes solutions for intelligent battery charger designs capable of handling battery removal, reverse polarity, short circuits, and other situations. It also covers battery reference material, basic SMPS converter tradeoffs, and a complete battery charger system design with fuel gauge. Download here.

AN968: Simple Synchronous Buck Converter Design - MCP1612
This application note contains all of the information needed to design a synchronous buck converter using the MCP1612, including an implemented design example with measured power conversion results. Download here.

AN1088: Selecting the Right Battery System for Cost-Sensitive Portable Applications
This application note describes design tradeoffs in battery chemistry, charging, product cost, and product size, including application examples. Download here.

AN1156: Battery Fuel Measurement Using Delta-Sigma ADC Devices
The fuel used (mAH) and fuel remaining (mAH) in a battery can be calculated by tracking the discharging and charging currents over time. This application note describes the use of Analog-to-Digital Converter (ADC) devices to perform these functions. Download here.

AN1311: Single-Cell Input Boost Converter Design
A variety of single-cell input synchronous boost converters can be designed using the MCP1640B/C/D family of devices. This document shows different performance tradeoffs and features present in these designs. Download here.

AN1337: Optimizing Battery Life in DC Boost Converters Using MCP1640.
This application note details practical considerations for efficient circuit operation using the MCP1640 device in applications intended for long battery life. Download here.

AN1385: Using the MCP16301 Design Analyzer
The MCP16301 design analyzer provides efficiency and stability information for the power supply designs using the MCP16301 buck converter. Download here.

AN1541: Using the MCP19111 Design Tools
The MCP19111 offers incredible flexibility for advanced power supply designs. This document illustrates a design example using MCP19111 design tools to unlock the unique features of the digitally enhanced power analog controller. Download here.

AN1882: ADC Measurement Correction and Optimization for MCP19114/5
MCP19114/5 has a built-in 10-bit ADC. When using the ADC in practice, several factors will affect the accuracy of the measurement. These factors include noise, offset errors, Differential Non-Linearity (DNL)/Integral Non-Linearity INL and errors and variations in the ADC reference voltage. These error sources will have some initial errors specified at room temperature (+25 °C). Also, the error due to the temperature variation of these parameters should not be overlooked. This application note will provide a means of alleviating these errors. Download here.

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