power management for embedded systems. power requirement for embedded micro systems multiple supply...
TRANSCRIPT
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)