H-Bridge  -  This circuit drives a motor clockwise / anticlockwise via a 10k to 100k pot. . . .  [Name of designer is not given]

H-Bridge  -  drives DC motors forward and backward. . . .  [Bob Blick]

H-Bridge drives DC motors  -  This circuit drives small DC motors up to about 100 watts or 5 amps or 40 volts, whichever comes first. Using bigger parts could make it more powerful. Using a real H-bridge IC makes sense for this size of motor, but hobbyists love to do it themselves, and I thought it was about time to show a tested H-bridge motor driver that didn't use exotic parts. . .  [Bob Blick's design]

HD Video Cable Driver Using Economical LT6559  -  Single supply 5V HD Video Cable Driver with two resistors setting common voltage on capacitive coupled input. Two 270pF takes care of 10MHz filtering. This circuit depicts one of three channels. . . .  [ Linear Technology App Note - , Jul 2, 2012]

High Current Switch Machine Motor Driver  -  Circuit for model railroad trains. . . .  [from Rob Paisley's Model Train web site]

High Efficiency White LED Driver Guarantees Matching LED Brightness  -  DN267 Design Notes (Linear Technology). . .  [Linear Technology]

High Efficienty White LED Driver Guarantees Matching LED Brightness  -   Design Note 267. . .  [Linear Technology]

High Intensity Line Powered LED Flasher  -  There are times when you would like to generate an intensely bright flash of light using electrical power from the AC line. The circuit below can drive a one to three watt power LED with about 350ma of peak current. Since the circuit drives the LED with . . . [Circuit by David A. Johnson P.E.,  12/07/08]

High Output Line Driver for Single Ended Power Supply  -  AS079 Application Note (App Note - 04/03/02) . . .  [Jenson Transformers]

High Power IR LED Driver using the PIC16C781/782  -  Application Note Published 26-Sep-02. . .  [Microchip]

High Power LED Flasher  -  Power LEDs are becoming more popular these days. The DC input power to these devices ranges from 1 watt to 5 watts. Normal LEDs only receive about 0. 05 watts. At this higher power, these devices can emit a lot of light . . . [Circuit by Dave Johnson P.E.,  08/03/08]

High Speed, Low SkeW RS422 Drivers & Receivers Solve Critical System Timing Problems   -  Application Note 05 Oct1998 /. . .  [National Semiconductor]

Highly Integrated Stereo Codec ICs Drive Multimedia   -  Analog Devices-Analog Dialogue. . .  [by Babicz, Dave and Haun, Al and Wood, Maury]

High-power LED drivers require no external switches  -  07/19/07  EDN Design Idea    suiting a variety of applications, these circuits transform a switching regulator into a current source for driving power LEDs. . .  [by Alfredo H Saab and Steve Logan, Maxim Integrated Products, Sunnyvale, CA]

High-side current-sensing switched-mode regulator provides constant-current LED drive  -  04/14/05  EDN Design Idea   Drive LEDs with constant-current source. . .  [by Bradley Albing, Philips Medical Systems Inc, Cleveland, OH]

High-side driver feeds IGBTs and MOSFETs  -  11/23/00 EDN Design Idea   The low- to moderate-power system in Figure 1 provides the interface between a pulse-width modulator and a high-side IGBT (insulated-gate bipolar-transistor) or MOSFET switch. You can use it to interface TTL or CMOS circuitry to . . .  [by Carlisle Dolland, Honeywell Engines and Systems, Torrance, CA]

High-side driver has fault protection  -  09/05/02  EDN Design Idea   High-side drivers find common use in driving grounded solenoid coils and other loads. Short-circuit protection for such drivers is essential for avoiding damage from wiring faults and other causes. Polymer fuses are generally too slow. . .  [by Carl Spearow, Tokyo Electron, Gilbert, AZ]

High-Speed Pin Driver for Digital Device Testing  -  File contains several designs, please scroll to find this circuit. . . .  [Analog Devices-Analog Dialogue by Gotschewski, Bill]

High-Speed, Current-Feedback Amplifier Drives and Equalizes up to 100-m VGA Cables  -  Analog Devices-Analog Dialogue. . .  [by El-Khoury, Charly]

High-voltage Amplifier drives piezo tubes  -  12/07/04  EDN Design Idea   Piezoelectric tubular positioners that drive manipulators in scanning tunneling microscopes require high-voltage, low-current drive circuits. The circuit in Figure 1 can drive high-resistance, low-capacitance piezoelectric loads at . . .  [by Bipin Duggal, Netaji Subhas Institute of Technology, New Delhi, India]

High-Voltage, High-Frequency Amplifier Drives Piezoelectric PVDF Transducer  -  07/24/08  EDN Design Idea   Finding wide use in nondestructive testing, a high-voltage, high-frequency Amplifier drives a piezoelectric PVDF transducer. . .  [by Enrique Vargas, Sergio Toral, Vicente González, and Raúl Gregor, Universidad Católica Nuestra Señora de la Asunción, Itapúa Antequera, Paraguay]

HO Model Train Lighthouse Flasher  -  HO train sets often have authentic looking scale model homes and buildings. The hobby circuit below can be mounted inside a model lighthouse. The electronic circuit drives a single LED lamp in such a way that it produces light which simulates the rotation . . . [Hobby Circuit designed by David A. Johnson P.E.,  07/11/06]

HO Train Lighthouse Flasher Revisited  -  HO train sets often have authentic looking scale model homes and buildings.   A while back someone asked me to design a flashing LED light, which he could mount inside a model lighthouse and have it operate so it would appear to rotate and flash.   I designed a working circuit but I was never pleased with the results.   I’m still not 100% pleased but the revised circuit below seems to operate a bit better than the older circuit. … [Hobby Circuit designed by Dave Johnson P. E. , May 2012] . . . [Hobby Circuit designed by Dave Johnson P.E.,  12/20/12]

Hot AC Power Line Indicator  -  The circuit below is designed to detect when a power cable is active (hot) . When the flat sensor end of the device is held near an active AC line, the bright green LED on the top of the housing will glow. It is powered by a 3v CR2032 lithium coin cell. I . . . [Hobby Circuit designed by David A. Johnson P.E.,  05/02/05]

HV809 EL Lamp Driver for Battery Powered & Off-Line  -  Supertex Semiconductors. . .   

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