Power Management for Embedded Systems

Power requirement for Embedded Micro Systems

• Multiple supply voltages• Small size in all components, L R C etc• High Efficiency • Intel sets power requirements for Intel

Processors such as IMVP6; IMVP6.5How to reduce the size of inductors, capacitors,

resistors and MOSFET drives?

IMVP6

An example of Power Supply for Embedded Platform

Texas Instruments

Power in PDAIPhone, Palm, etc

Switching Mode Power Supply

Block Diagram of SMPS

Devices Available to Build SMPS

and Operational Amplifiers

A Simple DC-DC Converter

Dissipative Realization

Duty Cycle changes dc voltage

Removal of Switching Harmonics

Regulation of Output Voltage

Boost Converter

Boost Converter Example

Boost Converter Analysis

Closed Loop converter system

Current Programmed Mode Buck Converter

CPM Buck Converter Example

0µs 10µs 20µs 30µs 40µs 50µs 60µs 70µs 80µs 90µs 100µs8.058V

8.060V

8.062V

8.064V

8.066V

8.068V

8.070V

8.072V

8.074V

8.076VV(4)

10Hz 100Hz 1KHz 10KHz 100KHz-42dB

-36dB

-30dB

-24dB

-18dB

-12dB

-6dB

0dB

6dB

12dB

18dB

24dB

-120°

-110°

-100°

-90°

-80°

-70°

-60°

-50°

-40°

-30°

-20°

-10°

0° V(4)