Electronics

Microchip continues to provide innovative products that are smaller, faster, easier-to-use and more reliable. PIC® microcontrollers (MCUs) are used in a wide range of everyday products from washing machines, garage door openers and television remotes to industrial, automotive and medical products. While some designs such as Switch Mode Power Supplies (SMPS) are traditionally implemented using a purely analog control scheme, these designs can benefit from the configurability and intelligence that can only be realized by adding a microcontroller. This document showcases several examples in which a PIC microcontroller may be used to increase the functionality of a design with a minimal increase in cost. Several of the tips provide working software examples or reference other documents for more information. The software and referenced documents can be found on the CD included with this booklet, or on the Microchip Technology web site at www.microchip.com.

TIP #01: Soft-Start Using a PIC10F200
TIP #02: A Start-Up Sequencer
TIP #03: A Tracking and Proportional Soft-Start of Two Power Supplies
TIP #04: Creating a Dithered PWM Clock
TIP #05: Using a PIC® Microcontroller as a Clock Source for a SMPS PWM Generator
TIP #06: Current Limiting Using the MCP1630
TIP #07: Using a PIC® Microcontroller for Power Factor Correction
TIP #08: Transformerless Power Supplies
TIP #09: An IR Remote Control Actuated AC Switch for Linear Power Supply Designs
TIP #10: Driving High Side FETs
TIP #11: Generating a Reference Voltage with a PWM Output
TIP #12: Using Auto-Shutdown CCP
TIP #13: Generating a Two-Phase Control Signal
TIP #14: Brushless DC Fan Speed Control
TIP #15: High Current Delta-Sigma Based Current Measurement Using a Slotted Ferrite and Hall Effect Device
TIP #16: Implementing a PID Feedback Control in a PIC12F683-Based SMPS Design
TIP #17: An Error Detection and Restart Controller
TIP #18: Data-Indexed Software State Machine
TIP #19: Execution Indexed Software State Machine
TIP #20: Compensating Sensors Digitally
TIP #21: Using Output Voltage Monitoring to Create a Self-Calibration Function

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