TEKNIK ELEKTRONIKA

HiWave Technologies PLC (formerly known as NXT), a provider of electronics solutions for audio and haptics, has announced combined haptic touch and audio exciters for touch panels and screens used in industrial, home automation, automotive and consumer electronic products. Applications include pad computers, hand-held and integrated displays and controllers.

 

When used with HiWave driver modules, a pair of NXHX14C exciters disperses bending waves evenly over the surface of touch panels so that users experience the sensation of depressing mechanical keys when they touch the panel surface. The simulated mechanical movement enhances the human interface, enabling faster and more accurate keystrokes.

 

The same transducers also convert the touch screen into a flat panel loudspeaker with nominally flat response from 200 Hz to 15 kHz. This eliminates the need for separate loudspeakers and amplifiers, enabling more compact products with fewer components. It also reduces bill of materials and manufacturing costs.

 

The exciters are designed for use with touch screens up to 19

View the Original article

ADLINK Technology Inc. has released the PCI-9527, billed as their first 24-bit high-resolution dynamic signal acquisition module specifically designed for audio testing, acoustic measurement, and vibration analysis applications. The PCI-9527 features two 24-bit simultaneous sampling analogue input channels with a sampling rate up to 432 KS/s, two analogue output channels with update rates up to 216 KS/s, and one external digital trigger I/O connector.

 The PCI-9527 has a dynamic input range of  more than 100 dB, an adjustable input range from

View the Original article

-3dB), high-end quality audio up to 750 W /4 ohms with an efficiency exceeding 95% at nominal power. Furthermore, this series features one of the world lowest quiescent current consumptions. This may seem obvious, but other Class-D amplifiers have high efficiency at full power but draw (and dissipate) tens of watts when no signal is present. As an example, the S750 model draws only 5.5 watts with no signal and less than 3 watts when in stand-by. This goal is achieved by a careful design of the signal and driver stages, that draw very little power, and the use of switching technology also for the internal power supplies. This low dissipation allows very easy installation (no heatsink or forced cooling needed for most applications). Besides, there is no need to connect several voltages, as Sonora S250 and S750 modules work from a single, wide-range, symmetric power supply.

 

Coldamp designs are always synchronous natural-sampling, with a well-defined, constant clock frequency that produces small, constant-amplitude switching residual and allows easy synchronization between channels and/or with our switching PSUs, allowing a drastic background noise reduction.

Coldamp has developed an integrated module, Sonora Combo 2S300, a 2 x 300 W amplifier with switching PSU, that fully exploits this fact, because the whole circuitry is synchronized for utmost, repeatable, consistent, sound quality. This module is specially aimed at home constrcutors, OEMs and integrators due to its easy connection (only AC power, input and speaker wires involved), but with a bunch of auxiliary connections that add flexibility when it is needed.

 

The smallest amplifier in the series, the S250, uses the same technology but is optimized for low-cost and small size in applications where moderate power output is needed.

 

The whole Sonora Series (S250, S750, Combo 2S300) also feature integrated comprehensive protection including under-voltage, over-voltage, overcurrent, short-circuit and over-temperature shutdown with integrated sensors, making them extremely reliable. Besides, all of them can be bridged, extending the power range to over 1500 watts at 4or 8 ohms using two S750, or 600 watts into /8 ohms with the 2S300. 

 

 

More info

https://www.coldamp.com/store/products/audio-power-amplifier-modules/sonora-series Extra:
Tell a friend To News Overview To News Archive Benefit now

Audio Collection Bundle

19% Discount !

This complete range of The Audio Collection offers you access to more than 225 different audio circuits originally published in Elektor Electronics magazine between 1996 and 2008.

More

View the Original article

Linear Audio Publishers of Hoensbroek, The Netherlands, have announced the release of the premier issue of their new semi-annual 'bookzine' called Linear Audio. The printed publication's goal is to provide high quality technical audio information and construction projects to serious hobbyists and professionals.

Linear Audio Volume 0 packs 160 pages of technical audio articles covering solid state preamps and power amps, vacuum tube power preamps and low noise preamps, loudspeaker systems and stereo reproduction, audio transformers, book reviews, test equipment and more.

Volume 0 authors include Nelson Pass, Douglas Self, Bob Cordell, Tom Nousaine and Siegfried Linkwitz. A full list of article abstracts is available at the link below. Linear Audio Volume 0 can be ordered online.

Contact: Jan Didden, phone

View the Original article

We really hate to blow our own trumpet but Elektor is famous for its publications on DIY high end audio. Over the past 20 years or so, many superbly designed amplifiers, preamplifiers, loudspeakers and ancillary equipment have graced the magazine pages, and we’re glad to be able to say that more will follow in the future.

For the convenience of high-end and hi-fi fans and other interested readers around the world, Elektor has bundled its audio blockbusters on DVDs. All DVDs contains the unabridged articles as originally published, complete with all schematics, board layouts and performance graphs where applicable.

Now, volume three in the series has been released. As an introduction offer, you can get it without paying postage if you order before August 12, 2010. If you haven’t already got volumes 1 and 2, now’s also a great opportunity to get all three DVDs at a special reduced price. Look for the bundle offer on the second link below!
More info
Elektor Audio DVD Vol. 3Elektor Audio DVD Bundle Vol 1, 2, 3 Author
JB
Extra:
Tell a friend To News Overview To News Archive Sponsored

View the Original article