Logic-Level actuated, adjustable glow-plug driver  -  All of my turbine starts before the research on the ECU involved a very successful spark ignition. I thought (only briefly) of trying to add spark ignition to the ECU, but the mixture of delicate logic circuitry and perhaps 30, 000V simply don't mix. My past experience with the hall sensor ignition for the radial engine bears this out in painful detail. So I decided to go with a glow-plug driver. . . .  [designer's name not found on the website]

Low Current Flashing LED Power Indicator  -  This circuit flashes a power indicator LED to keep the average current low . . . [Hobby Circuit designed by David A. Johnson P.E.,  06/04/00]

Low Pass Filter, 3Khz, With An Audio Amp  -  This circuit uses a switched capacitor filter IC from National Semiconductor to filter signals with frequencies higher than the 3KHz needed for voice audio. The schematic includes an audio amplifier that is designed to drive a standard audio head phone . . . [Hobby Circuit designed by David Johnson P.E.,  06/04/00]

Low Power LED Flasher  -  Judging from the numerous references I have received, this electronic circuit, hobby circuit seems to be rather popular. Many published circuits which flash LEDs need 3 or more volts. This electronic circuit uses only a single inexpensive C-MOS IC and . . . [Hobby Circuit designed by David Johnson P.E.,  06/04/00]

Low Power RS-232C Driver & Receiver in CMOS  -  Application Note 05 Oct1998 / . . .  [National Semiconductor]

Low Power Sequential Flasher using 10 LEDs  -  A while back I posted a flasher circuit which flashed 10 LEDs sequentially. That circuit was powered by four AA alkaline cells. The circuit below operates much the same way but has been modified to run from a single 3v CR2032 lithium coin cell . . . [Hobby Circuit designed by Dave Johnson P.E.,  04/17/11]

Low Power Universal LED Flasher  -  This low power LED flasher circuit draws about 100ua from any DC power supply ranging from 3 volts to 24 volts. The 1. 0Hz 10ms LED pulsed current is held to a constant 10ma . . . [Circuit by David A. Johnson P.E.,  07/11/06]

Low-Cost Converter Drives Fluorescent Tube  -  03/31/94 EDN Design Idea  In the last few months, several designers have published circuits for cold-cathode fluorescent-tube (CCFT) power supplies, and a specialized power-supply IC is also now available. However, a significant number of CCFT applications. . .  [by Steven C Hageman, Calex Manufacturing Co, Concord, CA]

Low-Cost, simple 1-kV driver  -  05/13/04  EDN Design Idea   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 . . .  [by Tai-Shan Liao and Prasit Champa, National Science Council, Hsinchu, Taiwan]

Low-Cost, simple 1-kV driver  -  05/13/04  EDN Design Idea   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 . . .  [by Tai-Shan Liao and Prasit Champa, National Science Council, Hsinchu, Taiwan]

Low-Dissipation Multiple Line Drivers/Receivers  -  PDF contains several designs, scroll to find this one. . .  [Analog Devices-Analog Dialogue by Schweber Bill]

Low-Voltage Current Sink Controls High-Voltage LED String   -  Most portable products with displays that use white light emitting
diode (WLED) backlights also need auxiliary LED lighting. Two ICs are generally needed: an inductive boost to obtain maximum efficiency (>80%) for the backlight LEDs; and a charge pump to allow independent ontrol of each auxiliary LED. . .  [Analog Devices App Note - by Jon Kraft]

LT3518 Full-Featured 45V, 2.3A Switch Current LED Driver-Video Product Brief  -  The LT3518 is a current mode DC/DC converter with an internal 2. 3A, 45V switch specifically designed to drive LEDs. The LT3518 operates as a LED driver in boost, buck and buck-boost modes. It combines a traditional voltage loop and a unique current loop to operate as a constant-current source or constant-voltage source. Programmable . . .  [Linear Technology App Note, Steve Knoth-Senior Product Marketing Engineer Aug 25th 2010]

LT3791 Buck-Boost Controller Drives High-Power LEDs, Charges High-Voltage Batteries  -  08/29/13  EDN Design Note The LT®3791 is a 4-switch synchronous buck-boost DC/DC converter that regulates both constant-current and constant-voltage at up to 98. 5% efficiency with a single inductor. It can deliver hundreds of watts and features a 60V input and output rating, making it ideal for driving high power LED strings and charging high voltage batteries when both step-up and step-down conversion is needed. It can also be used as a constant voltage buck-boost regulator with current limiting and monitoring for both input and output. . .  [by Keith Szolusha, Linear Technology Corporation, also see Linear Technology Design Note 501]

LTC Design Note: Driver for 14-bit, 4.5 MSPS ADC operates over a wide gain range  -  05/28/15  EDN Design Note   Assure optimum performance by matching up ADC and input driver. . . .  [EDN Design Idea]

LTC Design Note: Dual 13A μModule regulator with digital interface for remote monitoring & control of power  -  04/06/15  EDN Design Idea   Digital power system management (PSM) enables on-demand telemetry capability to set, monitor, change, and log power parameters of dual high-current . . .  [EDN Design Idea]

LTC Design Note: Generating a ±10.24V true bipolar input for an 18-Bit, 1Msps SAR ADC  -  01/27/15  EDN Design Idea   This fast, hi-res, differential-input ADC is easily driven. . . .  [EDN Design Idea]

LTC6946-2 Driving a Passive Downconverting Mixer  -  The LTC6946 is a high performance, low noise, 5. 7GHz phase-locked loop (PLL) with a fully integrated VCO, including a reference divider, phase-frequency detector (PFD) with phase-lock indicator, ultralow noise charge pump, integer feedback divider, and VCO output divider. The charge pump contains selectable high and low voltage. . .  [Linear Technology App Note - , Jan 16th 2012]

LX1686 Backlight CCFL Direct Drive Design ReferenceAN-13  -  Application Note 13. . .  [Microsemi Corp]

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