Apple – iPhone – Web Phone with Apps

 Mobile Handheld  No Responses »
Jul 302008
 

Apple – iPhone – Web Phone with Apps

Apple who primed the Home PC Technology, has again redefined the ways a Mobile phone can be used.

This has not only given Apple Fans and many new enthusiasts a way to use a Handheld gadget, it also has sent ripples of Creative Adrenaline in other Cell Phone Makers. This means better phones, a better world. Now the phones can do a lot more, than just plain talk.

The Apple iPhone is a Beacon of New Innovative Technologies, an opportunity for developers, An empowerment for the consumer to make his work more productive and an Advanced tool for business. Apple iPhone means Agility for Businessmen and is not short on games and multimedia for youngsters.

Phone – Make a call by tapping a name or send a text with the intelligent keyboard.

iPod – Enjoy music and video on a widescreen display and shop for music with a tap

Internet – Browse the real web, get HTML email, and find yourself with GPS maps.

 Posted by delabs at 4:40 pm  Tagged with:

LM3914 – Dot Bar Display Driver

 Circuits, Integrated Circuits  No Responses »
Jul 302008
 

The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display. A single pin changes the display from a moving dot to a bar graph. Current drive to the LEDs is regulated and programmable, eliminating the need for resistors. This feature is one that allows operation of the whole system from less than 3V.

LM3914 – Versatile and Easy use Display

  • Drives LEDs, LCDs or vacuum fluorescents
  • Bar or dot display mode externally selectable by user
  • Expandable to displays of 100 steps
  • Internal voltage reference from 1.2V to 12V
  • Operates with single supply of less than 3V
  • LED driver outputs are current regulated, open-collectors

The circuit contains its own adjustable reference and accurate 10-step voltage divider. The low-bias-current input buffer accepts signals down to ground, or V-, yet needs no protection against inputs of 35V above or below ground. The buffer drives 10 individual comparators referenced to the precision divider. Indication non-linearity can thus be held typically to ½%, even over a wide temperature range.

My LM3914 Circuits

Millivolt Meter using a LM3914 LED Dot Display

Millivolt Meter using a LM3914 LED Dot Display

Circuits and Projects of LM3914

 Posted by delabs at 3:20 pm

Electronic Shift Monitor

 Circuits, Projects  No Responses »
Jul 302008
 
Electronic Shift Monitor

The Security Guard duty monitor below, shown in eight circuits at Digital Circuits – 1 are examples of logic circuits, i have converted them from the DOS Orcad to Orcad 9 and corrected some errors a few years back. These circuits can be used for looking at the logic blocks or to learn. This product was built and sold to some firms many years back. Now these designs are best done with a PIC or Atmel chip. Here is the user manual Electronic Shift Monitor ESM9000

 Posted by delabs at 12:45 pm

Eda-Stds.org – Electronic Design Automation

 ASIC EDA  No Responses »
Jul 292008
 

Eda-Stds.org – Electronic Design Automation Dedicated to the support, open exchange and dissemination of in-development standards from EDA Industry Working Groups. The Electronic Design Automation (EDA) and Electronic Computer-Aided Design (ECAD) one-stop resource on the WWW! Open Verification Library Free VHDL models from Free Model Foundry (FMF) FreeHDL VHDL compiler / simulator Mentor Graphics Corporation free VHDL-AMS tools IEEE Circuits and Systems Society

 Posted by delabs at 9:40 pm

Universal Serial Bus Controller – TUSB3210

 Data Interface, Integrated Circuits  No Responses »
Jul 292008
 

Universal Serial Bus Controller – TUSB3210 The TUSB3210 is a USB-based controller targeted as a general-purpose MCU with GPIO. The TUSB3210 has 8K × 8 RAM space for application development. In addition, the programmability of the TUSB3210 makes it flexible enough to use for various other general USB I/O applications. TUSB3210 Generic Evaluation Board (Rev. A) (sllu031a.pdf, 438 KB) Download. Resources related to TUSB3210 Keil – TI TUSB3210 TUSB3210 Drivers and Samples

 Posted by delabs at 9:10 am

My first Knol on Temperature

 Process Control  No Responses »
Jul 282008
 

Temperature Control in Plastic Injection Molding Plastic Molding is done by Melting Plastic Granules, The temperature control in this machinery is critical for obtain… by Anantha Narayan I have ported one of my application notes to a Knol. “Knol is an authoritative article about a specific topic, Knol makes it easy for you to write and share your knowledge with the world.”

 Posted by delabs at 8:15 am

250 W SMPS with Power-FETs

 Power Electronics  No Responses »
Jul 272008
 
250 W SMPS with Power-FETs

250 W SMPS with Power-FETs “Experiments with the PC power supply encouraged me to an “advancement ” design. The new power supply is also a forward converter with a half-bridge topology. The difference to the modified PC power supply consists in the following items: Two power FETs instead of bipolar transistors used as power switches. ” + + + This page helps you learn SGS3525 use in a practical manner. Even the magnetics. – ananth

 Posted by delabs at 1:49 pm

LF398 – Monolithic Sample and Hold Circuit

 Integrated Circuits  No Responses »
Jul 272008
 

LF398 – Monolithic Sample and Hold Circuit The LF198/LF298/LF398 PDF are monolithic sample-and-hold circuits which utilize BI-FET technology to obtain ultra-high dc accuracy with fast acquisition of signal and low droop rate. Operating as a unity gain follower, dc gain accuracy is 0.002% typical and acquisition time is as low as 6 µs to 0.01%. A bipolar input stage is used to achieve low offset voltage and wide bandwidth. Input offset adjust is accomplished with a single pin, and does not degrade input offset drift. The wide bandwidth allows the LF198 to be included inside the feedback loop of 1 [Read More ....]

 Posted by delabs at 12:01 pm

TI – Texas Instruments – Application Notes

 Design, Integrated Circuits  No Responses »
Jul 252008
 
TI - Texas Instruments - Application Notes

Texas Instruments TI – Application Notes TI – Applications Semiconductor Application Reports Analog & Mixed Signal Logic Products Microcontrollers Temperature Sensors & Control ICs DSP-Digital Signal Processing TINA-TI – Analog Simulation Texas Instruments -TI E2E Community TI E2E Engineer-to-Engineer Community. Ask questions, share knowledge, explore ideas, and help solve problems. Interact at @TXInstruments TI Semiconductors – Texas Instruments, better known in the electronics industry (and popularly) as TI, is an American company based in Dallas, Texas, USA, renowned for developing and commercializing semiconductor and computer technology.

 Posted by delabs at 10:00 pm
 Older Entries
© 2011 delabs Technologies Suffusion theme by Sayontan Sinha