DESCRIPTION
Demonstration circuit 607 is an Isolated Full Bridge
Converter featuring the LTC3722, LTC4440,
LTC3901, and LT1431. This circuit was designed to
demonstrate the phase-shifted full bridge power
supply to generate 12V at 35A from a typical telecom
input voltage range of 36 to 72V. Isolation voltage
is 1500VDC. Fixed zero-voltage transition timing
was chosen because of the relatively fast bridge
leg transition times with 48V input. The DC607A
PCB layout includes options to implement adaptive
timing.