MANAGING POWER ELECTRONICS VLSl and DSP-Driven Computer Systems phần 6 docx

... in multi- carrier systems is shown. To evaluate and optimize the channel estimation, a multi- carrier reference scenario typical for mobile radio systems is defined. The fre- quency band has a bandwidth ... 3.1 dB 3 .6 dB 5.4 dB 2/3 4.9 dB 5.7 dB 8.4 dB QPSK 3/4 5.9 dB 6. 8 dB 10.7 dB 5 /6 6.9 dB 8.0 dB 13.1 dB 7/8 7.7 dB 8.7 dB 16. 3 dB 1/2 8.8 dB 9 .6 dB 11.2 dB 2/3 11.1 dB 1...

Ngày tải lên: 09/08/2014, 19:22

... (l/VBE) x d/dT(VBE) = -2 mV/0.6 V = -1/300 Eq. 3 -22 Comparing Eq. 3 -20 with Eq. 3 -22 we have namely the relative variations of VBE and dVBE are identical in value and opposite in sign. ... order to support existing and new features like Power Factor Correction (PFC) with fewer overall power losses. Discrete Power Technology: Processing and Packaging 21...

Ngày tải lên: 14/08/2014, 09:21

... of power, as will be discussed in detail later, is another reason for a mixed analog and digital approach to power management. 3. 1 0 Logic Functions NAND Gate In Figure 3- 34 we ... Buck Converter 79 4.2 to handle 30 A with 3. 3 V. For further details, a full data sheet of the FAN50 93 is provided in Appendix A. The IC is built in a 30 V, 0.8 pm BiCM...

Ngày tải lên: 14/08/2014, 09:21

... process and power source levels, and eliminating these bottlenecks will require new process technologies that lead to chips with reduced power dissipation and new power sources with higher power ... on the box surface-in the spot closest to the heat source-of roughly 74 C (45 °C ambient). Power AC Adapter: Thermal and Electrical Design 123 Figure 5- 14 Illust...

Ngày tải lên: 14/08/2014, 09:21

... DDR and DDR2 Memories There are a variety of DDR power ICs; for example, Fairchild Semicon- ductor has the ML 655 3/4 /5 with integrated MOSFETs, the FAN5066 for high power systems, and ... The device is stand-alone and is avail- able in 5- lead SOT-23 and 6-lead 3 x 3 mm MLP packages. Power Management of Desktop and Notebook Computers 161 Figure 7-3 PCs...

Ngày tải lên: 14/08/2014, 09:21

... cases: high performance and high power set-top boxes, which consume 50-240 W and require Power Factor Correction (PFC), and low power set-top boxes, below 50 W. High Power Set-Top Boxes In ... applications like PCs and handheld computers. Such commonalties allow the power system designer to draw from a rich portfolio of Application- Specific Standard Product (ASS...

Ngày tải lên: 14/08/2014, 09:21

... FAN4803CS-1 67kHz / 67kHZ FAN4803 PRODUCT SPECIFICATION 0°C to 70 °C 8-Pin SOlC (SO8) ~ ____~ ~ ~~ ~~~~~~ Ordering Information FAN4803CP-1 67kHZ / 67kHZ 0°C to 70 °C 8-Pin PDlP ... charge pump as shown in Figure 2. Note that the BOOT and VCC pins are separated from the chip's internal power and ground, BYPASS and AGND. for switching noise immunity....

Ngày tải lên: 14/08/2014, 09:21

... encryption 8 On-chip Power on Reset 8 Programmable read and write disable l~nctlons 8 Memory mapped 110 8 32 level Low Voltage Detection 8 Brown-out Reset 8 Sonware selectable ... 6V data EEPROM min writing voltage 8 1.OOO.OW data changes 8 8 and 14-pr SOIC TSSOP and DIP packages 8 In-circuit proorammino Block and Connection Diagram VC...

Ngày tải lên: 14/08/2014, 09:21

... (FDS6612A) and a1 B/CIPB (FDS6 690 S) respectively. Using FDS6 690 S, change R6/R7 as required. Refer to Power MOSFET Selection, page 15 far more information 8 REV 1 1 9 5/25/05 ... 01A (FDS6612A) and QIB (FDS669OS) respectively Using FDS6 690 S, change R7 to 1200%. Refer to Power MOSFET Selection, page 15 for more Information. REV. 1.1 9 5...

Ngày tải lên: 14/08/2014, 09:21

... 1 N-type matcrials 10- 1 1, 365 offline control 108 -1 10 offline power architectures 107 -1 18 future trends 1 18 harmonic limits 108 -1 10 offline control 108 -1 10 power factor correction ... 66-69 NANDgate 67 set-reset flip-flop logic device 68 See ril.rn analog circuits digital control 100 -101 digital control architecture 100 , 361 digital power 100...

Ngày tải lên: 14/08/2014, 09:21

... Telephones 12 7 Wireless Handheld 12 9 Charge 13 1 Protection and Fuel Gauging Convergence of Cellular Telephone and Handheld Future Architectures 13 3 12 6 13 1 13 2 16 Chapter 2 Power ... Camera 1. 5 1 Camera Phones 1. 52 Power Minimization 15 .5 Untethered Operation 1. 55 7 Computing and Communications Systems 15 7 7 .1 Power Management of...

Ngày tải lên: 14/08/2014, 12:20

... I+p2LO]Eq. 3-77 42 Chapter 3 Circuits (l/VBE) x d/dT(VBE) = -2 mV/0.6 V = -1/300 Eq. 3 -22 Comparing Eq. 3 -20 with Eq. 3 -22 we have namely the relative variations of VBE and dVBE ... small signal transistor model in Figures 3-1 and 3 -2 shows 20 Chapter 2 Power Management Technologies 2. 3 Discrete Power Technology: Processing and Packaging Micropr...

Ngày tải lên: 14/08/2014, 12:20

... table shown in Figure 3- 36. (a) (b) Figure 3- 35 Set#-Reset# Flip-Flop (a) logic schematic and (b) truth table. (a) (b) Figure 3- 36 Set-Reset Flip-Flop (a) symbol and (b) truth table. ... Chapter 3 Circuits Figure 3- 29 Input filter. and from LIN x dlldt = dV 'OUT Eq. 3- 89 LIN = 0.5 Vl(0.1 Alps) = 5 pH Eq. 3- 90 Input Capacitor 1=20A Eq....

Ngày tải lên: 14/08/2014, 12:20