12.6.3. Power Efficiency

Try these first

1. 1.

   What is power efficiency in the context of embedded systems?

   Hint

   Think about energy management.

2. 2.

   Name one strategy for achieving power efficiency.

   Hint

   Consider what happens when a device is not in use.

3. 3.

   What is a primary benefit of using low-power modes?

   • Increase processing speed
   • Reduce battery consumption
   • Enhance display quality

   Hint

   Consider what happens to battery life during idle states.

4. 4.

   Low-power modes are only useful when the device is on.

   • True
   • False

   Hint

   Think about the situation when devices are 'sleeping'.

5. 5.

   Design an embedded system that maximizes battery life while maintaining performance. Discuss your approach.

   Hint

   Focus on identifying how long components remain active based on usage.

6. 6.

   Analyze a case where power management directly impacted device reliability. What happened, and what could be done differently?

   Hint

   Consider failures in environments with extreme power demands.