Green Electronics/Green Bottom Line. Environmentally by Lee H. Goldberg and Wendy Middleton (Eds.)

By Lee H. Goldberg and Wendy Middleton (Eds.)

  • 'The booklet offers a concise account of the most recent innovations and advancements within the rising self-discipline of layout for setting. The editor might be counseled at the variety of the publication. it's a hugely readable account of the topic with each one bankruptcy being a good offered contribution to the literature. members contain training engineers from well-know companies and lecturers from top universities in North the US and Europe. Even during this fast paced period, i'm certain that this booklet might be talked about for a very long time. each engineer fascinated with the perform of electronics production and/or layout may still locate this booklet very beneficial.' - magazine of Electronics production, Vol. nine, No.1 . . .an first-class advent to environmentally accountable engineering. -EDN journal ED This ebook provide you with invaluable info that you should use now, case stories that labored, and ideas approximately destiny tendencies. -EDN journal ED . . .it provides reliable engineering details and suggestion. -Test & dimension global i have by no means noticeable this kind of whole number of useful information regarding designing with the earth's atmosphere in brain. -Test & size international The ebook is easily definitely worth the small rate, actually the booklet expense might have been greater . . . -Newton advertising


, Pages xi-xii

, Pages xv-xviii
- advent: for those who imagine schooling is dear, try out ignorance!: An interview with Dr. Amory lovins on expertise, the surroundings, and the existential pleasures of whole-system engineering

, Pages 3-12, Lee H. Goldberg
Chapter 1 - Designing energy-efficient computers utilizing built-in strength management

, Pages 15-28, Gary Smerdon
Chapter 2 - strength effective three-phase AC motor drives for equipment and commercial applications

, Pages 29-42, Radim Visinka
Chapter three - A high-voltage strength issue controller is helping increase strength quality

, Pages 43-56, Ondrej Pauk, Petr Lidik
Chapter four - Designing high-efficiency DSP-based motor controls for patron goods

, Pages 57-65, Aengus Murray
Chapter five - layout for Disassembly, Reuse, and Recycling

, Pages 69-82, Pitipong Veerakamolmal, Surendra Gupta
Chapter 6 - Defining Electronics Recycling

, Pages 83-90, Craig Boswell
Chapter 7 - Sensor-based info recording for recycling: A reasonably cheap expertise for embedded product self-identification and standing reporting

, Pages 91-101, Markus Klausner, Wolfgang M. Grimm, Arpad Horvath
Chapter eight - A Survey of DfE software

, Pages 105-112, Joan Williams
Chapter nine - layout for surroundings: a published circuit board meeting example

, Pages 113-122, Sudarshan Siddhaye, Paul Sheng
Chapter 10 - towards built-in product life-cycle layout tools

, Pages 123-130, Brian Glazebrook
Introduction: digital production techniques and the environment

, Pages 133-134, Christopher Rhodes
Chapter eleven - choice of plastics utilizing fee, structural, and environmental factors

, Pages 137-142, William Trumble
Chapter 12 - Battery choice and application—environmental considerations

, Pages 143-150, George L. Yender
Chapter thirteen - enforcing eco-friendly revealed wiring board manufacturing

, Pages 153-160, Holly Evans, John W. Lott
Chapter 14 - No-lead solder assembly

, Pages 161-170, William Trumble
Chapter 15 - Chemical conversion coatings on digital equipment

, Pages 171-175, William Trumble
Introduction: Musings sooner than a brand new dawn

, Pages 179-181, Ted D. Polakowski
Chapter sixteen - DfE for engineering managers: Making it count-DfE and the ground line

, Pages 185-192, Jill Matzke
Chapter 17 - Making it happen—DfE implementation

, Pages 193-199, Jill Matzke
Chapter 18 - Getting the maths correct: exact costing via product lifestyles cycles

, Pages 201-214, Kelly Weinschenk
Chapter 19 - layout for environment—A ecu logistics perspective

, Pages 215-224, Carsten Nagel
Chapter 20 - assembly the letter and spirit of environmental administration utilizing the ISO 14001 standard

, Pages 227-243, James Lamprecht
Chapter 21 - ISO 14001 for the surroundings and your backside line

, Pages 245-252, Jim Hart
Chapter 22 - past ISO 14000: ST microelectronics as a case examine in environmental leadership

, Pages 253-256, Carol Brown

, Pages 259-263, Lee H. Goldberg
Chapter 23 - Designing a greater the following day this day with self-disassembling electronics

, Pages 267-280, Joseph Chiodo, Eric H. Billett
Chapter 24 - Ultralight hybrid vehicles—principles and design

, Pages 281-296, Timothy C. Moore
Chapter 25 - the surroundings and nanotechnology

, Pages 297-301, Di Rodi Vincent F.
Appendix A - A case study

, Pages 305-310, William Trumble
Appendix B - Case study

, Pages 311-314, William Trumble, Pat Lawless
Appendix C - Case study

, Pages 315-321, William Trumble
Appendix D - Resources

, Pages 323-324
Appendix E - writer touch Information

, Pages 325-329

, Pages 331-340

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In the routine, new values of three-phase PWM output are calculated using a sinusoidal table stored in the memory of the microcontroller. Then, the microcontroller's PWM generator generates corresponding PWM pulses. The process is accessed regularly at the rate given by the set PWM frequency and the selected PWM interrupt prescaler (register PCTL2). The process must happen frequently enough (compared to the controller's output wave frequency) to ensure enough sample points to generate the correct wave shape with no significant PWM distortion.

Opto-isolation between the power stage and the microcontroller. A power supply. 36 GREEN ELECTRONICS TABLE 2-1 GeneralRequirements Motor Characteristics Motor type: Speed range: Base electrical frequency: Maximum output power: 4-pole, 3-phase, star-connected, squirrel cage AC induction motor < 3000 rpm 50 Hz 500 W Drive Characteristics Drive type: Transducer: Output frequency range: Line input: Maximum DC-bus voltage: Opto-isolation: Control algorithm: Microcontroller driven 3-phase inverter 16-pole AC tacho-generator < 100 Hz 230V/50Hz 400 V Included Speed closed-loop volts per hertz Hardware Design Microcontroller Board The microcontroller Motorola MC68HC908MR24 controls the entire drive by reading the speed command together with feedback signals and, according to a preprogrammed algorithm, generating the PWM signals for power devices and status signals for the user interface.

At higher power levels, a more sophisticated passive component solution, such as a ferroresonant input transformer or a tuned input filter, may be possible. However, these passive solutions are effective over only a limited range of operating frequencies, voltages, and power levels. 95 or less is acceptable and where the passive components are not excessively large. Active PFC Techniques A more effective solution can be achieved by implementing active power-factorcorrection circuits, which take the form of non-transformer-isolated switching power supply.

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