Backlight CCFL Direct Drive Design Reference (AN-13):  Application Note 13 from Microsem  (app note added 6/06)

Backlight LED Driver with High Side Current Sense :  Sipex Application Note  (app note added 6/06)

Balanced Audio Input Circuit :  (design circuit added 8/02)

Balanced Line Driver and Receiver :  (schematic / circuit design added 9/02)

Balanced Line Inputs/Outputs for Silicon Graphics Workstations :  balancing using transformers (added 4/02)

Basics of El Panel Drive Techniques:  Supertex Semiconductors (app note added 6/06)

Battery operated remote temperature sensor Drives 4 to 20 mA Current loop:  12/17/04 EDN Design Ideas  /  (added 1/05)  You can remotely measure temperature using a 4to 20-mA current loop as long as 4000 feet and a battery-powered, white-light LED driver. You usually configure this equipment to provide a programmable, constant current to an LED from a battery source.....

Bridge Circuit Drives - App Note 3:  Apex Microtechnology Corp App Note (added 6/06)

Brush Type DC Motor Drive - App Note 24:  Apex Microtechnology Corp App Note (added 6/06)

Brush-Dc Servomotor Implementation using PIC17C756a:  Microchip Application Note Published 12-Oct-99   (app note added 6/06)

Buck Configuration High-Power LED Driver:  Microchip Application Note Published 4-Jan-06   (app note added 6/06)

Buck/Boost-Based LED Drivers using the HV9910:  Supertex Semiconductors (app note added 6/06)

Calculating Power Dissipation for Differential Line Drivers:  National Semiconductor Application Note   (app note added 6/06)

Cheap PWM IC Makes Synchronous Gate Driver:  02/04/99 EDN-Design Ideas  / (added 6/06)  A system with a µP, memory, and peripherals usually requires several power-supply voltages. Designers typically use local switching regulators to produce  desired voltage rails. One of  most common topologies,  synchronous buck regulator, converts a 5 or 12V bus....

Circuit Adapts Differential Input to Drive Coax :  05/08/97 EDN-Design Ideas / (added 3/03) -Uses an HFA1100 or HFA1105 to convert a balanced input signal to a single-ended output signal, uses positive feedback to characteristic-impedance matching while increasing the available output swing, as compared with using a simple series termination resistor

Circuit Converts PWM Fan Drive to Linear and Reduces Acoustic Noise:  App Note 3530: Maxim IC  (application note added6/06)

Circuit Delivers Dimming Control for White-LED Driver :  10/28/04 EDN Design Ideas Online (added 1/05) This Design Idea presents a widely adaptable approach to the dimming challenge.

Circuit Drives 9 Volt Solenoids from 3 Volt Battery:  08/17/95 EDN-Design Ideas / (added 6/06)

Circuit Drives Latching Relays:  02/01/96 EDN-Design Ideas / (added 6/06)

Circuit Drives Mixed Types and Quantities of LEDs:  10/03/02 EDN Design Ideas  /  (added 1/05)  Portable systems often use LEDs of different colors and in varying quantities of each color. Some examples are white for the display backlight, green for keypad illumination, and red for power. Typically, the LEDs derive power from at least....

Circuit efficiently drives inductive loads:  05/25/00 EDN-Design Ideas / (added 2/06) 

Circuit for Driving Microcontroller Friendly PWM Generators:  Microchip Application Note Published 27-Jun-05   (app note added 6/06)

Circuit Forms Simple Low Cost 1 Kv Driver:  05/13/04 EDN Design Ideas (added 1/05)  High-voltage drivers have recently received much attention, because they play an important role in driving piezoelectric and electro-optical components, for example. Figure 1 shows a simple, low-cost, 1-kV driver. The circuit uses offline, current-mode-control techniques and a flyback switching-power-supply design....

Circuit Makes Universal VCSEL Driver :  07)/10/03 EDN Design Ideas (added 1/05)  VCSELs (vertical-cavity surface-emitting lasers) are commercially available infrared semiconductor lasers with λ≅850 nm. Short-cavity-length, high-quality Bragg mirrors impart properties to VCSELs that differ from those that earlier Fabrey-Perot lasers impart. The emission characteristics—optical power, Pλ, versus diode current......

Circuit Tests VCOM Drivers :  11/11/04   EDN-Design Ideas / (added 5/05)

Code Provides Adjustable Differential Drive for Robots :  10/16/03 EDN Design Ideas (added 1/05)  Intelligently modifying the motor-drive commands to a robot can give you control finesse during competitions. Moving a joystick hard right, for example, might have different effects, depending on the robot's speed and direction. Software running on an inexpensive....

Complementary LED Drive:  Microchip Application Note Published 6-Nov-98   (app note added 6/06)

Constant Current Constant Voltage Converter Drives White LEDs:  09/02/04 EDN Design Ideas  /  (added 1/05)  LEDs usually take their drive from a constant dc-current source to maintain constant luminescence. Most dc/dc converters, however, deliver a constant voltage by comparing a feedback voltage to an internal reference via an internal error amplifier. The easiest way to turn a simple dc/dc converter into......

Constant-Current DC/DC LED Driver in ThinSOT:  Linear Technology LT1932 (app note added 2/05)

Controller Provides Multiple Alarm Driver Formats:  01/15/98 EDN-Design Ideas  /  (added 6/06)  DC/DC converters for use inside the telephone handset require operation from the high-source-impedance phone line. Additionally, the CCITT specifications call for maximum on-hook power consumption of 25 mA. The dc/dc converter in Figure 1 is 70%-efficient at an input power....