Tài liệu Power Electronics ppt

... F.G.Turnbull; Power electronic control of AC motors, Oxford: Pergamon Press, 1988. [3] B.K.Bose; Power electronics and AC drives, Englewood Cliffs: Prentice-Hall, 1986. ENGNG3070 Power Electronics ... DC DC max max max max max max ./ ( ) . = =++= + =+ æ è ç ö ø ÷ = Þ == == 0.5+ 0.5 V ENGNG3070 Power Electronics Devices, Circuits and Applications  E Levi, Liverpool John Moore...

Ngày tải lên: 26/12/2013, 01:17

... in all directions. The power of a transmitter that is radiated from an isotropic antenna will have a uniform power density (power per unit area) in all directions. The power density at any distance ... intensity of isotropic antenna with same power input Power density from an isotropic antenna ' P D ' P t 4BR 2 where: P t ' Transmitter Power R ' RangeFromAnten...

Ngày tải lên: 22/01/2014, 11:20

... particular response to V i cos ωt . 6.002 Fall 2000 Lecture 16 11 6.002 CIRCUITS AND ELECTRONICS Sinusoidal Steady State 6.002 Fall 2000 Lecture 16 1 Usual approach… 1 Set up

Ngày tải lên: 12/12/2013, 22:15

... … No. External value can influence storage node. 6.002 Fall 2000 Lecture 1 14 6.002 CIRCUITS AND ELECTRONICS State and Memory 6.002 Fall 2000 Lecture 11 14 Input resistance R IN B Second attempt

Ngày tải lên: 12/12/2013, 22:15

... 8 22 One nit … D i S V O v L R VCCS 1 I v O v For v O >0 , VCCS consumes power: v O i D For v O <0 , VCCS must supply power! () 2 1 2 −−= ILSO vR K Vv () 2 1 2 −= ID v K i for v I ≥ 1 However, ... the power port. Also, for convenience we commonly observe “the common ground discipline.” In other words, all ports often share a common reference point called “ground.” How do we...

Ngày tải lên: 12/12/2013, 22:15

... PCU output power. When the PCU output power reaches a maximum level, the input resistance is fixed at the value that produces this level. Presumably when output power is a maximum, input power is ... maximum power from the array. This is done by incorporating maximum power- tracking circuitry into the PCU. Figure 18.4 shows the I – V characteristics of an array with the max...

Ngày tải lên: 13/12/2013, 00:15

... to active power filters, because the term active power filters is misleading to either active filters for power or filters for active power. Therefore, this section takes the term active filters for power ... various power quality events. The IEEE Emerald Book (IEEE Standard 1100-1999, IEEE Recommended Practice for Power and Grounding Electronic Equipment ) defines power quality...

Ngày tải lên: 13/12/2013, 00:15

... causing current to flow through C and D. Basic PushBasic Push Pull Power ConverterPull Power Converter Operates as a class D power amplifier. Output rectifier converts the sq are a e to dc Each ... current. o I V AmVregulationLoad Δ Δ =)/( L I g Δ )( V 100 Δ oL o V x I V regulationload 100 % Δ Δ = H. Chan; Mohawk College 8 Basic HalfBasic Half Bridge Power ConverterBridge Power Co...

Ngày tải lên: 13/12/2013, 23:15

... 6.002 Fall 2000 Lecture 1 25 6.002 CIRCUITS AND ELECTRONICS Violating the Abstraction Barrier 6.002 Fall 2000 Lecture 5 25 R i V instantaneous

Ngày tải lên: 22/12/2013, 19:17

... ramp L V I =slope 2 )T(Li 2 1 :TtatstoredenergyE ==Δ L TV E I 2 2 2 =Δ 6.002 Fall 2000 Lecture 2 24 Power Conversion Circuits (PCC) Power efficiency of converter important, so use lots of devices: MOSFET switches, ... segment”: R + – + – + – V6.0 6.0v I ≥ I v Example V6.0 + – Equivalent circuit 6.002 Fall 2000 Lecture 1 24 6.002 CIRCUITS AND ELECTRONICS Power Conversion Circuits an...

Ngày tải lên: 22/12/2013, 19:17