The Power Distribution system is designed for powering two servo motors of the pan tilt unit camera. The circuitry is as follows-
Circuit Design of Power Distribution System.
Efficiency of each regulated subsystem
a. For mic 12 WU subsystem: 1- (15-12)/15=0.8
b. For mic 5 WU subsystem: 1- (15-5)/15=0.33
Heat Dissipation of each subsystem
a. For mic 12WU subsystem, under normal conditions, Pd(power dissipate)= (15V-12V)x1.4A-15 x 0.016A=3.96W
In peak condition, Pdmax= (125℃-75℃)/(56℃/W)=0.893W
b. For mic 5WU subsystem, under normal conditions, Pd= (15V-5V) x 0.5A-15 V x 0.016A=4.76W
In peak condition, Pdmax= (125℃-75℃)/(56℃/W)=0.893W
Other files for the board
Click here for Power Distribution file (Circuit design)
Click here for Power Distribution schematic
Click here for Power Distribution Layout