Mr. Green's Efficiency Watch - October 2017

-


Mr. Green says...
Welcome to the latest installment of Efficiency Watch. This issue starts with news of a California Energy Commission (CEC) webinar that covers the fundamentals of the appliance efficiency standards program. We detail the strategy of the U.S. Environmental Protection Agency (EPA) for revising Version 6.1 of the ENERGY STAR® computer specification, then report on calls by the EPA for early input on a revision to its ENERGY STAR Audio/Video (A/V) program specification. We conclude with news of workshops for the next phase of California’s efficiency regulations. As always, if you have any questions or comments, or would like me to report on a specific regulation, please feel free to email me.

In this issue:

California Offers Help in Understanding Title 20 Efficiency Regulations
CA Energy CommissionHaving problems understanding the ins and outs of California’s Title 20 Appliance Efficiency Regulations? Help is on the way. The California Energy Commission (CEC) has released an on-demand webinar covering the fundamentals of the state’s appliance efficiency standards program. Read more.

EPA Releases Revision Draft of Computer Efficiency Spec
The EPA has unveiled its strategy for revising Version 6.1 of the ENERGY STAR® computer specification. The specification details minimum efficiency requirements for desktop, notebook, and portable all-in-one computers, tablets, workstations, and thin clients. Read more.

Input Requested for ENERGY STAR Audio/Video Spec Revision
The U.S. Environmental Protection Agency (EPA) is seeking early input on a revision to its ENERGY STAR® Audio/Video (A/V) program specification. Get involved.

Workshops Announced for Next Phase of California Efficiency Regulations
The California Energy Commission (CEC) moves closer this month to developing amendments to the state’s Title 20 Appliance Efficiency Regulation. Learn more.

Late Breaking News:
Check out energy efficiency news that was breaking as this issue was being finalized. Read more.
October 2017
LinkSwitch-TN2

Mr Green's Blog
Twitter
Facebook
Linkedin
Googleplus


Postagens mais visitadas deste blog

Programação de um CLP: Modos de programação

-
Imagem
No seguimento do curso de Automação, neste artigo apresento como perceber os conceitos básicos de programação de um CLP. No decorrer das próximas edições apresentaremos a forma de programar um controlador lógico programável Autores: Filipe Pereira - Eng. Elétrotécnico / Automação Klean Energie 4 Life, Ltda Energias Renováveis - Portugal As linguagens de programação são empregadas nos CLPs desde que estes surgiram em 1960. Estas permitem ao usuário inserir programas de controle utilizando sintaxes pré-estabelecidas. Previamente ao estudo dos três tipos de linguagem mais utilizados na programação de CLPs, convém rever alguns conceitos essenciais. O programa que vai definir o automatismo é constituído por uma série de instruções e funções onde são operados os bits de memória. Estas instruções e funções, serão introduzidas na memória do CLP, através de um periférico destinado a esse fim e que poderá ser uma console de programação ou software específico para PC. Veja na figura 1 u...
Leia mais

The Mystery of USB Chargers

-
Imagem
By  Jestine Yong  on July 9, 2014 Almost any new device such as mobile phone, tablet, iPod, GPS etc… will come with some sort of USB Charger and a cable. The cable will connect to your device through a dedicated connector, mini USB, micro USB or manufacturer’s specific. At the other end, most cables will be terminated with the familiar USB connector (USB type A), which you can connect either to the charger or to your computer. If you are like the 50% of mobile phone users you will buy a second charger, just to have one at work and one at home. Over the years, you will end up with several USB chargers and you might wonder if you could simplify your life by having only one charger, or at least a couple of chargers, for all your devices. The problem is that they are not all compatible. Your Samsung charger will not work with your Apple device etc… In this article we will analyze some USB chargers and find out why they are so different. And may be find out that they are ...
Leia mais

Subwoofer Repair

-
Imagem
By  Jestine Yong  on December 3, 2013   A customer brought this powered speaker for repair. It is a Wharfedale Titan 12’ subwoofer Amplifier. The complaint: No power. I opened the unit checking the usual things such as the fuse, EMI filter coils, voltage on filter caps etc. These all checked out fine, and I measured 320VDC over the two filter caps. The unit uses a SMPS. The smps and class-D Amplifier, are both on the same board. I then connected my analog meter to one of the secondary output lines going to the amplifier. There was no voltage here, and nothing on any of the other output lines going to the pre-amp board. I then proceeded to check if it is a shutdown problem, by switching the unit on and watching to see if the needle on my analog meter jumps up for a brief moment. No movement at all. This made me believe I have a primary –side fault. I checked the two, main switching Mosfets  and they were good. From the below photo you can ...
Leia mais