Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
twk
User Rank
Author
re: Making motors more energy efficient
twk   6/7/2010 7:56:25 PM
NO RATINGS
Thus far the product implementations I have experienced have really missed the mark. I see a HVAC unit with a fan motor that saves energy but they replace a $39 motor with a $700 motor to get the savings. As the consumer that both buys the system and operates it the actual payback is negative. They have to get the total life cycle cost to improve before I can even be interested. It is also real life that the reliability gains touted due to thermal improvement are far overcome by the reliability degredation by adding a bunch of electronics.

mac_droz
User Rank
Author
re: Making motors more energy efficient
mac_droz   6/4/2010 2:15:01 PM
NO RATINGS
We all should save energy, but how much will you save? How often do you use washing machine? Me? 2 to 3 washes a week and the heater is the most energy consuming part of it. I'd rather get a washing machine that is going to last for 10 years than the super efficient one. You can't cheat on heating :)

bcvd
User Rank
Author
re: Making motors more energy efficient
bcvd   6/3/2010 3:43:48 PM
NO RATINGS
This sounds like it uses similar technology as a VFD (drive) except that the frequency is maintained at the original 60Hz. Many high efficiency appliances now use brushless DC motors that require drives that incorportate similar feedback circuitry. Is this intended to be a lower cost alternative? Also, is the controller 3rd party certified? There are concerns about the single fault failure mode of the semiconductor circuitry and software (firmware). IEC/UL/CSA 60730 documents include requirements to address safety concerns.



Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

ESC Boston 2015 Sneak Peek -- Awesome Analog Meters
Max Maxfield
Post a comment
Almost any information that is captured by a sensor or generated by an electronic or electro-mechanical system can be displayed in analog or digital fashion. A common example with which we ...

Martin Rowe

Leonard Nimoy, We'll Miss you
Martin Rowe
2 comments
Like many of you, I was saddened to hear the news of Leonard Nimoy's death. His Star Trek character Mr. Spock was an inspiration to many of us who entered technical fields.

Rajaram Regupathy, Cypress Semiconductor

Add USB Battery Charging Protocols to an Android-Based Design
Rajaram Regupathy, Cypress Semiconductor
Post a comment
Editorial Note: Excerpted from Unboxing Android: A hands on approach with real world examples, by Rajaram Regupathy, the author takes you through the process incorporating effective power ...

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...
Radio
LATEST ARCHIVED BROADCAST
EE Times Senior Technical Editor Martin Rowe will interview EMC engineer Kenneth Wyatt.
Flash Poll