|
Pin Diode Drivers - National Semiconductor Application Note 02 Mar1999 / (app note
added 7/02) |
|
Potentiometers Enable Programmable Biquadratic Filter - (07/22/04 EDN Design Ideas
/ (added 11/05) Of the many types of analog filters available to designers, few
allow easy adjustments of the filter parameters. The biquadratic, or biquad, filter is
an exception, however. You can change that filter's corner frequency (ω0), Q, and gain
(H) by adjusting the values of three resistors. For that purpose, the lowpass biquad
circuit of Figure 1 includes three potentiometers configure... |
|
Power Supply IC Drives Multiple LEDs - 09/02/04 EDN Design Ideas /
(added 1/05) Bright LEDs are becoming prominent sources of light. They often
have better efficiency and reliability than do conventional light sources. Although
LEDs can operate from an energy source as simple as a battery and a resistor, driving
a string of LEDs in constant-current mode can better match the l.... |
|
Quad Output Switching Converter Provides Power for Large TFT LCD Panels - DN349
Design Notes (Linear Technology) (app note added 6/06) |
|
Radiated Emissions and CRT Displays - National Semiconductor Application Note
(app note added 2/06) |
|
Reconstruction Filter Selection for HDTV and VGA/Application / ABR-42015 -
Fairchild Application Notes / (app note added 6/06) |
|
RS-232c Line Driver IC Drives Power MOSFETs - 10/24/96 EDN-Design Ideas / (added
3/03) -Easy to effect an interface between power MOSFETs and TTL circuits |
|
RSDS™ Flat Panel Display Design Guidelines Part 1 - National Semiconductor
Application Note (app note added 2/06) |
|
RSDS™ Flat Panel Display Design Guidelines Part 2 - National Semiconductor
Application Note (app note added 2/06) |
|
Scheme Provides High Side Current Sensing for White LED Drivers - 02/19/04 EDN
Design Ideas / (added 1/05) White LEDs find wide use in backlighting
color-LCD screens in most portable devices, such as cellular phones, PDAs, and MP3
players. Multiple LEDs often connect in series to ensure that the same current flows
through every LED. To forward-bias these LEDs, a voltage of 10 to 16V.... |
|
Sensor Electronic Tracker with H-Bridge Drive - (electronic circuit added 7/03) |
|
Series White LED Driver - National Semiconductor Application Note LM3590 November
2003 (app note added 02/05) |
|
Servo Pulse to PWM - converter connects an H-Bridge to radio control receivers or
robotic circuits. (added 7/03) |
|
Seven Segment LCD uses Two Wire Interface - 09/04/03 EDN Design Ideas /
(added 1/05) You can connect seven-segment LCDs using only a two-wire interface
(Figure 1). The two-wire interface may be at the field-effect, direct-drive LCD or at
a serial interface (such as I2C) that uses an eight-pin microcontroller. The design in
Figure 1 uses an Atmel (www.atmel.com) ATtiny12 microcontroller, IC1.... |
|
Signal Processor Adds LED Display - 04/05/06/96 EDN Design Ideas / (added
6/06) Designers using the Texas Instruments TSS400, a versatile 4-bit
sensor-signal processor, may find the circuit in Figure 1 useful as a replacement for,
or an adjunct to, the IC's built-in display capabilities. |
|
Simple 0 to 24 dB Gain Amplifier and Balanced Line Driver - AS022 Jenson
Transformer Application Note (app note 04/03/02) |
|
Simple Active Matrix LCD Bias Supply Operates from Battery Input - 02/03/00 EDN
Design Ideas / (added 11/05) Many active-matrix-LCD applications
need multiple voltages for thin-film-transistor (TFT) bias. Typically, three voltages
are necessary: 5V for the column driver; a positive voltage, such as 10V; and a
negative voltage, such -5V, for the TFT gate drive, or row driver. For handheld
electronic devices, a battery.... |
|
Simple LCD Interface Takes Two Wires - 03/26/98 EDN-Design Ideas / (added
03/03/03) |
|
Small Mezzanine-Board Format Offers More I/O - 04/10/99 EDN-Design Ideas / (added
11/05) [Note: File contains multiple circuits. Scroll to find this
one.] You can now get both modules and carrier boards for the PC-MIP mezzanine
format. MEN and SBS-Greenspring (now called SBS Technologies) developed the format as
a smaller alternative to PMC modules .... |
|
Small/Medium LCD Panel less than 14 inch - Intersil Application Block Diagram
(app note added 6/06) |
|
Solar Car Display Controller Schematic - (electronic circuit added 7/03) |
|
Song Number Display - (electronic Circuit / Schematic added 10/04) |
|
Speller Effect Sign Display - (electronic Circuit / Schematic added 10/04) |
|
Switch Configures Bare Bones Two Digit Display - 12/21/95 EDN-Design Ideas /
(added 3/03) |
