Theory Power Electronics phần 2 pps

... and high power factor (PF) if the source is ac voltage. Some special power supplies require controlled direction of power flow. Basically two types of power supplies are required: dc power supplies ... and ac power supplies. The output of dc power supplies is regulated or controllable dc, whereas the output for ac power supplies is ac. The input to these power supplies can be...

Ngày tải lên: 08/08/2014, 03:20

... picasa (from /picasa _2. 2 .28 20-5_i386.deb) Setting up picasa (2. 2 .28 20-5) 28 Chapter 2: Installing Ubuntu and Adding Software 829 35c 02. qxd:Toolbox 10 /29 /07 12: 56 PM Page 28 Table 2- 4: Some Common ... \*.deb /var/cache/apt/archives/picasa _2. 2 .28 20-5_i386.deb /var/cache/apt/archives/minicom _2. 2-4build1_i386.deb 30 Chapter 2: Installing Ubuntu and Adding Software 829...

Ngày tải lên: 07/08/2014, 02:23

... 30.3 Power Supplies DC Power Supplies•AC Power Supplies•Special Power Supplies 30.4 Converter Control of Machines Converter Control of DC Machines•Converter Control of AC Machines 30.1 Power ... collector current FIGURE 30. 5Power MOSFET circuit symbol. (Source: B.K. Bose, Modern Power Electronics: Evaluation, Technology, and Applications, p. 7. © 19 92 IEEE.) © 2...

Ngày tải lên: 08/08/2014, 03:20

... control BQy y C C Q y C C Q y ss s s t s s s t s s 2 2 22 2 1 1 8 =- ổ ố ỗ ử ứ ữ + ổ ố ỗ ử ứ ữ ổ ố ỗ ử ứ ữ ổ ố ỗ ử ứ ữ ộ ở ờ ờ ự ỷ ỳ ỳ - ổ ố ỗ ử ứ ữ ổ ố ỗ ử ứ ữ p B C C Q y s t s s 3 2 2 22 1 8 =+ ổ ố ỗ ử ứ ữ ổ ố ỗ ử ứ ữ ổ ố ỗ ử ứ ữ p I Z p eq = 4 p ... converter. Q LC R LLLL s ss L sps = ¢ =+ + ¢ (/) ; / 12 y f f s s r = f f LC s r r ss = = == switching frequency series resonance...

Ngày tải lên: 08/08/2014, 03:20

... 1. ¢ = æ è ç ö ø ÷ =WRn V P L o o 2 2 156. L C LC f y s s r ss s s æ è ç ö ø ÷ =´ = = 12 12 4156 1 2 / / . () W and wp © 20 00 by CRC Press LLC A simple control circuit can be built using PWM IC SG3 525 and TSC 429 MOSFET ... review,” Proc. IEEE, vol. 70, pp. 116–135, Feb. 19 82. B.K. Bose, Modern Power Electronics, New York: IEEE Press, 19 92. J.M.D. Murphy and F.G. Turnbull,...

Ngày tải lên: 08/08/2014, 03:20

... Office 20 07 - Tập 3:Tìm hiểu MS Powerpoint 20 07 Biªn So¹n: Niemtin071@yahoo.com 8 1. Đầu tiên nhấn phím Alt trên bàn phím. 2. Những ký tự và con số xuất hiện trên hầu hết các trên phần ... Tìm hiểu Microsoft Office 20 07 - Tập 3:Tìm hiểu MS Powerpoint 20 07 Biªn So¹n: Niemtin071@yahoo.com 7 2. Một hộp thoại xuất hiện với nhiều tùy chọn khác để bạn ... chú cho bài...

Ngày tải lên: 29/07/2014, 00:20

... within 24 hours.” Include the strongest pledge you can live up to, and stress it in your advertising. Power Principle Number Six: Make Top Quality a Top Priority Having just told you (Power ... had 20 0,000 subscribers; a direct-mailing to their entire list would cost $100,000, and all you could expect to do was to break even. However, I negotiated an eight-page space ad for $22 ,00...

Ngày tải lên: 07/08/2014, 02:20

... would highly recommend it for mind power seduction work. It is extremely powerful and can access unbelievable brain states. "Wave Form" is a very powerful tape. It’s not a tape of music ... available through Source Books and costs around $19. You can contact Source Books at 1-800-637- 522 2. If you are interested in purchasing the cassette, be sure it is "Wave Form 1" as...

Ngày tải lên: 07/08/2014, 19:22

... Nevada 1 32 0 .23 A 3LG Texas 1 32 0.33 A 2LG Tennessee 1 32 0.38 C 2LG Nevada 1 32 0.41 C 3LG Claytor 1 32 0. 42 A 1LG Tennessee 1 32 0.45 D 2LG Texas 1 32 0.48 C 3LG Glen Lyn 1 32 0.48 A 3LG Reusens 1 32 0.5 ... Nevada 1 32 0.5 D L-L Tennessee 1 32 0.5 C 2LG Claytor 1 32 0. 52 C L-L Nevada 1 32 0. 52 C L-L Texas 1 32 0.55 C 2LG Glen Lyn 1 32 0.57 C L-L Claytor 1 32 0.59 C...

Ngày tải lên: 08/08/2014, 15:21

... images as a common file format on Windows computers. 22 ■ chapter 2: Seeing Images as Color, Contrast, and Tone 4456c 02. qxd 3/1/06 3:04 PM Page 22 8. Type the six values obtained from the manufacturer ... get: monitor calibration and color preferences ■ 29 4456c 02. qxd 3/1/06 3:04 PM Page 29 12. Click the Next button. The screen that appears (Figure 2. 12) will enable you to sele...

Ngày tải lên: 09/08/2014, 12:21