by Anthony Smith @ edn.com:
The simple current-limiting load switch shown in Figure 1 will be familiar to most readers. In this circuit, a high level signal applied to the input switches on MOSFET Q2, which energizes the load. The load current is limited by negative feedback applied via Q1.
Load switch with self-resetting circuit breaker - [Link]
by EEVblog @ youtube.com:
In this tutorial Dave demonstrates the seldom used and often little understood mathematical integration function available on your modern digital oscilloscope. And demonstrates a practical example use for it in accurately measuring the total power consumption of a microcontroller that sleeps and then wakes up and does some processing before shutting down again. By getting the total area under the current curve.
EEVblog #662- How & Why to use Integration on an Oscilloscope - [Link]
by iFixit Video @ youtube.com:
Its been two years since the last full redesign for the iphone, and we couldn’t be more anxious to see the new upgrade up close. So we sent our Teardown team all the way to Melbourne, Australia to get the first look inside the new iPhone 6.
The iPhone 6 Teardown Review - [Link]
by Steve Taranovich @ edn.com:
I have been hearing about so many different and novel techniques for battery charging and cell balancing lately. Designers are working feverishly to optimize cell balancing and battery safety along with improved efficiency. I have been closely watching Sendyne for a while now, ever since the SFP100 was chosen to be one of 2013’s EDN Hot Products and UBM ACE Award finalist in the category of Ultimate Products in Analog ICs. This IC is a current, voltage and temperature measurement solution and can be configured for automatic compensation for resistance dependence of the shunt over temperature with a separate reference design board.
Unique battery pack architecture patented by Sendyne - [Link]
Researchers at Columbia Engineering and the Georgia Institute of Technology have reportedly made the first experimental observation of piezoelectricity and the piezotronic effect in an atomically thin material, molybdenum disulfide (MoS2). The piezo effect is traditionally thought of as one property of hard crystalline quartz. Using this new material it would now be possible to manufacture electric generator and mechanosensation devices that are optically transparent, extremely light, flexible and elastic.
Atomically thin Piezo Material - [Link]
by EEVblog @ youtube.com:
Dave shows you how to reverse engineer a PCB to get the schematic. In this case the new Rigol DS1054Z oscilloscope.
How does the discrete transistor analog front end and the software bandwidth limiting work?
How do you decode SMD transistor codes?
How does it compare to the old Rigol DS1052E?
Dave also discusses the low voltage ohms function of a mulitmeter, how it’s useful, and how to test your multimeter to see if it will have any issues with in-circuit testing.
EEVblog #675 – How To Reverse Engineer A Rigol DS1054Z - [Link]
Just plug in and start creating your IOT application in seconds.
ZERO+ is an open-source wifi module for smart devices development. it has powerful spec, various interfaces and its easy to code, all of which makes ZERO+ a highly flexible platform for smart devices development.
We believe ZERO+ can turn great ideas into reality because with ZERO+, you can develop your smart device including hardware, cloud service and user application within just one hour.
ZERO plus, Prototype your IOT product in seconds! - [Link]
by Ben Coxworth @ gizmag.com:
Nobody likes having blood samples drawn. What’s more, such samples typically have to be analyzed in a lab before they’re able to tell us anything. But now scientists at the University of Cincinnati and the US Air Force Research Laboratory are developing a system in which a Band-Aid-like skin patch is able to gather and transmit medical data in almost real time, by analyzing the patient’s sweat … and you just need a smartphone to read it, no poking or prodding required.
Sweat-analyzing skin patch could replace blood sampling - [Link]
Mix real and digital game worlds, play video games outside and create your own Hybrid Games!
Hybrid Play is a device for you and your children to experience and create new virtual adventures, and play them in playgrounds and parks. Play video games outside using the playground as a control interface. Hybrid Play promotes outdoor physical activity, verbal communication, and teamwork. Help us shape a new way to play!
Hybrid Play was designed for kids aged 6-12, and for parents who want to create with technology. It’s a fun, stimulating way to create and discover incredible video games, play outdoor, make exercise and communicate with other people.
Hybrid Play: Turn any playground into a video game - [Link]
Introducing PCBWeb Designer, our new desktop schematic capture and layout tool that’s free and easy to use. Create multi-sheet schematics, use the parts toolbar that includes the Digi-Key parts catalog, in a browsable and searchable database. The PCB view is always in sync with your schematic, and includes all the tools you need to create a design with up to 12 layers. Then you can keep your gerber files locally or send them off to one of our manufacturing partners for production from within the tool. Download at www.pcbweb.com
Introducing PCBWeb Designer - [Link]