Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
goafrit
User Rank
Manager
re: Tactile feedback solutions using piezoelectric actuators (Part 1 of 2)
goafrit   11/19/2010 12:25:09 AM
NO RATINGS
Good piece on this buzzing topic.

old account Frank Eory
User Rank
Rookie
re: Tactile feedback solutions using piezoelectric actuators (Part 1 of 2)
old account Frank Eory   11/18/2010 11:28:05 PM
NO RATINGS
For all the reasons the author stated, I think piezos are a much better solution than motors for haptic feedback. From the user's perspective, the idea is to emulate the feel of pushing a mechanical key. Vibrating the touchscreen with a motor doesn't come anywhere close to achieving that feel. Motor-driven haptic feedback "buzzing" on a touchscreen is, at least for me, unnatural -- something I'd rather disable than enable.

Sundown200
User Rank
Rookie
re: Tactile feedback solutions using piezoelectric actuators (Part 1 of 2)
Sundown200   11/18/2010 10:48:19 PM
NO RATINGS
The peizos can do both, create audible feedback and/or haptics (tap). The waveshape will determine the type of response. If you want the audible response along with the haptics, use a faster rise/fall time on the waveform. If you do not want an audible click, use a slower rise/fall time. In general, as panel size increases, the number of piezos required increases due to increased mass that needs to be moved.

Kinnar
User Rank
Manager
re: Tactile feedback solutions using piezoelectric actuators (Part 1 of 2)
Kinnar   11/18/2010 10:26:12 AM
NO RATINGS
This is a very nice use of pizzo effect, in fact most of the non technical person seeks the similar kind of effect after key press they feel in the computer keyboard or some other physical keypad, but in case of touch sceens it is not possilble to have that effect, present touch screen devices are simulating that effect using the bass speaker, but otherway round this consumes a lot of power from battery. This use of pizzp electric effect will greatly solve this problem.

sharps_eng
User Rank
Rookie
re: Tactile feedback solutions using piezoelectric actuators (Part 1 of 2)
sharps_eng   11/17/2010 11:29:39 PM
NO RATINGS
@Luis, are you sure you are not referring to audible clicks? This article is about a more LF physical 'tap' under the keyboard/screen. I'd be interested to know if just one driver can produce the same level of feedback across the whole panel, or if it is stronger in particular positions.

Luis Sanchez
User Rank
Rookie
re: Tactile feedback solutions using piezoelectric actuators (Part 1 of 2)
Luis Sanchez   11/17/2010 10:01:17 PM
NO RATINGS
I experienced this haptic feedback on one mobile phone once and to be honest I prefer not to have it. I think the silence and the delicate feeling once gets when using a capacitive touchscreen is nice. Nonetheless, that's my appreciation, there might be some folks out there that due prefer the mechanical feedback...



Most Recent Comments
hithesh.n
 
junko.yoshida
 
Sheetal.Pandey
 
junko.yoshida
 
Sanjib.A
 
Sheetal.Pandey
 
Max The Magnificent
 
Sheetal.Pandey
 
softdev1
Most Recent Messages
1/28/2015
12:13:18 PM
Top Comments of the Week
Flash Poll
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
Jack Ganssle, Embedded.com

Open Office: Your Fart is My Problem
Jack Ganssle, Embedded.com
2 comments
A Washington Post article, Google got it wrong. The open-office trend is destroying the workplace, describes how the author's ad agency moved her from a private office to an open space ...

Max Maxfield

Very Tasty Solar Media Player & Power Bank
Max Maxfield
15 comments
It's a funny old world and no mistake. I was sitting in the Pleasure Dome (my office) happily beavering away when someone dropped a package on my desk. When I opened this unexpected ...

Rich Quinnell

Bloopers Book Helps Improve GUI Development
Rich Quinnell
2 comments
Courtesy of fellow editor "Max" Maxfield (aka Max the Magnificent), I recently acquired a copy of GUI Bloopers 2.0 by Jeff Johnson of UI Wizards. I found it an interesting read chock full ...

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 ...