Synchronization circuitry and synchronization system for synchronizing
converters/controllers that are electrically-coupled to a common
synchronization node. The synchronization system includes synchronization
circuitry, oscillation circuitry, and a leading edge detector and pulse
generator. The synchronization circuitry includes pull-up circuitry and
pull-down circuitry for generating a voltage pulse-train at the
synchronization node. The oscillation circuitry controls which of the
pull-up and the pull-down circuitry is driven ON and which is driven OFF.