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

... 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

... 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