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AN216
| Title |
Title
DC/DC Converter Controller Using a PICmicro Microcontroller
|
|---|---|
| Name |
Name
AN216
|
| Date |
Date
06/24/2015
|
| Application Categories |
Application Categories
Power Supply & Conversion /
DC DC
|
| Product Categories |
Product Categories
8-bit MCU
|
| Description |
Description
In many applications, a DC/DC Converter is used to produce a regulated voltage or current, derived from an unregulated power supply, or from a battery. Examples of these applications include battery chargers, electronic air purifiers, emergency exit signs, and distributed power systems. In some of those applications, a dedicated Switched Mode Power Supply (SMPS) Controller IC is used in conjunction with a microcontroller. In other applications, however, a dedicated SMPS Controller IC may be overkill. An alternative approach is to generate a low cost SMPS function in a smart microcontroller, such as the PIC16C620A. This Application Note shows a method of using the microcontroller to perform simple SMPS control functions. Two circuits were built for evaluation. One circuit provides a Constant Voltage output, the other a Constant Current output
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