文件列表:

PWMSHANGSHENGXIAJIANG\Push-Pull PWM.mcp (833, 2006-12-04)
PWMSHANGSHENGXIAJIANG\Push-Pull PWM.mcw (29696, 2009-07-09)
PWMSHANGSHENGXIAJIANG\Push-Pull PWM.mcs (75, 2009-07-09)
PWMSHANGSHENGXIAJIANG\Push Pull PWM.c (2068, 2009-08-11)
PWMSHANGSHENGXIAJIANG (0, 2009-08-11)

Readme File for Code Example: CE020 - Push-Pull Mode PWM using dsPIC SMPS DSC ---------------------------------------------- The dsPIC SMPS Family of Digital Signal Controllers feature an on-chip Power Supply PWM Module. This module supports several PWM modes typically used in Power Conversion applications. One commonly used mode of operation is the Push-Pull PWM mode. This program illustrates the use of the Push Pull mode of the Power Supply PWM module. PWM1 and PWM2 are setup to produce 50% duty cycle with a PWM period of approximately 500nsec. The Push-Pull mode produces a pulse on PWMxH on one cycle and PWMxL on the next PWM cycle. Therefore the PWM duty cycle may appear smaller than 50% (effectively 25% in this example). The main application of the push-pull mode is to ensure that no residual DC charge exists on a transformer winding. All timing parameters are approximate and assuming 30MIPS operation. This file provides a brief description of files and folders provided in the accompanying workspace. This folder contains the following files: 1. This file This file provides a description of the functionality demonstr- ated by the example source code. 2. Push-Pull PWM.mcw, Push-Pull PWM.mcp These are MPLAB IDE workspace and project files that may be used to examine, build, program and debug the example source code. This folder contains the following sub-folders: 1. src This folder contains all the C and Assembler source files (*.c, *.s) used in demonstrating the described example.

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