NEX ROBOTICS SPARK V ATMEGA16 Hardware Manual page 14

SPARK V ATMEGA16 Hardware Manual
Figure 3.5: Power Management on the Spark V robot
Regulated supply for onboard payload:
Three low drop voltage regulators are used for powering various modules of the robot.
5V System: Powers microcontroller, logic circuit and sensors
3.3V: Powers XBee wireless module
5V Batt. Con: Powers Battery controller
Battery Controller:
When robot is powered up, smart battery monitoring circuit monitors the battery voltage and if it
drops below 7V, it starts giving beeping sound and battery status indicator led blinks with red
color.
When robot is off and 12V DC is applied to the battery charging socket, Smart battery
monitoring circuit charge the battery.
© NEX Robotics Pvt. Ltd. and ERTS Lab IIT Bombay, INDIA 14