Converter Synchronization Provides Design Flexibility
by John Bottrill, Senior Applications Engineer, Texas Instruments, Manchester, N.H., Power Electronics Technology, Nov 01 2004
Focus:
Two PWM-controlled power converters can be synchronized by controlling the slope of the internal voltage ramp in the synchronized power converter. This technique enables synchronization when a PWM controller IC doesn't allow access to its timing capacitor, while permitting features like programmable deadtime.
What you’ll learn:
- How to synchronize power converters with internal timing capacitors (internal to a PWM controller)
- How to synchronize a power converter to a frequency that is faster or slower than its natural, free-running frequency
- How to synchronize multiple power converters running on the same dc bus.
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