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27 Sep 2014

Dave plays around with an energy harvesting kit to see how much power he can get out of a Peltier device used as a Seeback effect module to generate power from temperature differentials.
Bonus white board tutorial of how Peltier devices work as heat pumps.

EEVblog #664 – Peltier TEG Energy Harvesting Experiments - [Link]

27 Sep 2014

In this video I take a look at the Zener diode used as a voltage reference and the effect of temperature on the stability of the output. (temperature coefficient)
By using a normal silicon diode in series which has a negative temp co you can offset the effect of the Zenner’s positive temp co.

Zener Diode Temperature Coefficient - [Link]

27 Sep 2014

Record attendance and development sets for great prices. Webinar with IQRF about wireless solutions was also about this.

This time, we again realized two webinars during just one day – one in English and one in Czech language.Usually, we draw one winner of development set out of all webinar participants. However this time, all participants had a chance to get DS-START-03 development set for fantastic price.

Did you miss our webinar?

If you missed this webinar, you can check VIDEO-record…


SOS webinar – How can you make a wireless device from your product? It‘s simple! - [Link]

22 Sep 2014

A very brief look at the new WENS 540 Debug Meter with Charles from Trio Test at the Electronex show stand:
This is NOT a review, or my normal blog content, it’s just a quick look because some people may be interested in it. So please, no silly complaints.
A combination 10MHz oscilloscope, 50000 count meter, 8 channel logic analyser, data logger, serial protocol analyser, and digital pattern generator.

WENS 540 Handheld 10MHz Oscilloscope and Debug Meter - [Link]


22 Sep 2014

How boost converters work and how to build a 50W adjustable boost converter circuit.

DC-DC Boost converter tutorial - [Link]

13 Sep 2014

by mjlorton @ youtube:

I go through the design and operation of the college power supply project. There is one minor error that still needs to be corrected but I think we are very close to a final design.

DIY Bench Power Supply #5 – Circuit Design and Operation - [Link]

13 Sep 2014

by TheSignalPathBlog @ youtube:

In this episode Shahriar takes a close look at some of Dino-Lite’s USB Digital Microscopes and accessories. Two of the microscope stand offerings from Dino-Lite are demoed (model MS36B and RK-10) with a close look at their features and usability. All USB stands offer precision Aluminum bodies and flexible ranges of motion for a variety of viewing angles and distances.

Three USB Digital Microscopes from Dino-Lite are also demoed: models AM4113ZTL Dino-Lite Premier, AM4515ZTL Dino-Lite Edge and AM4815ZTL Dino-Lite Edge. These microscopes offers features such as large magnification combined with long working distances, adjustable polarizer, adaptable cap design, MicroTouch shutter button, extended depth of field (EDOF), extended dynamic range (EDR) and automatic magnification reading (AMR) which are all compatible with the provide DinoCapture 2.0 interface software.

Using Dino-Lite’s microscopes, a variety of electronics components are presented: An Analog Devices PCB containing 0102 footprint components, A PIC UV erasable Silicon die, a 325GHz horn antenna, a composite wafer probe with 150um pitch from GGB industries. Finally, the complete breakdown of a QuinStar mm-wave PA module is shown with microwave filters, pre-amplifiers, and a Wilkinson-based GaAs PA as a final stage.

Dino-Lite USB Digital Microscopes Review and Experiments - [Link]

12 Sep 2014

Dave walks around the Electronex 2014 electronics exhibition at the Australian Technology Park, after hours when no one is there, and takes a peek at every stand.

Electronex 2014 – Walkaround - [Link]

6 Sep 2014

Freeing the Lepton from its Iphone prison!

The smallest thermal imager - [Link]

29 Aug 2014

A tutorial on feedback resistors in DC-DC converters and how to build a high current adjustable power supply using an LM2678.

Build a 2.5V to 14V 3A adjustable power supply! - [Link]



 
 
 

 

 

 

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