AN1965 Freescale Semiconductor / Motorola, AN1965 Datasheet - Page 18

• Manufacturer Part Number: AN1965
• Description: Design of Indirect Power Using the 56F800/E
• Manufacturer: Freescale Semiconductor / Motorola

PC Master Software
7.5.3 PFC_Enable
Notes:
7.5.4 PFC_Disable
Notes:
8.
18
Prototype:
This function enables PFC control to start the conversion after the first zero-crossing pulse.
Prototype:
This function disables PFC control to immediately finish the PFC conversion.
PC master software was designed to provide a debugging, diagnostic and demonstration tool for the
development of algorithms and applications. It runs on a PC connected to the EVM via an RS-232
serial cable. A small program resident in the controller communicates with the PC master software to
parse commands, return status information to the PC, and process control information from the PC. PC
master software uses part of Microsoft’s Internet Explorer as the user interface. To enable PC master
software operation on the hybrid controller target board application, add the PC master software bean
to the project and configure it. This automatically includes the SCI driver and installs all necessary
services. The default baud rate of the SCI communication is 9600bd. It is set automatically by the PC
master software driver and can be changed if needed. A detailed description of PC master software is
provided in a dedicated User’s Manual; see
The digital PFC application utilizes PC master software for remote control from the PC. The PC
master software reads and displays these variables to the user:
PC Master Software
•
•
•
Do not enable PFC control until measurement of DCBus voltage is complete.
After finishing the PFC conversion, output voltage has no zero level. Its value depends on
input voltage and equals about 1.4*U
Application operational mode
Start/stop status
DCBus voltage
void PFC_Enable(void);
void PFC_Disable(void);
Freescale Semiconductor, Inc.
For More Information On This Product,
Indirect Power Factor Correction
Go to: www.freescale.com
Section
IN
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9.