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Single Cell TPS61041 LED Driver Slva136.Htm, 1 Kb - TI
Application Note (added 6/06) |
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Single microcontroller pin senses ambient light, controls illumination
- 26-Oct-06 Issue of EDN LED circuit senses light and controls
its own brightness..... [Design Idea by Loren Passmore, Berkeley, CA;
Edited by Brad Thompson and Fran Granville] |
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Single NiCd Cell Drives OpAmp - 12/05/96 EDN-Design
Ideas.Low-supply-voltage op amps, such as the LMC6582 and LMC6681
families, feature rail-to-rail I/O with a gain-bandwidth product greater
than 1 MHz operating from just 1.8V. Although impressive, this voltage is
not low enough to power these amps using a single alkaline or NiCd/NiMH
cell, which have typical voltages of 1.25 to 1.5V. It is rather tempting
to bridge this gap by designing a dc/dc converter..... [Design Idea by
Alexander Belousov, Rego Park, NY] |
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Single-ended driver for a Circlotron OTL - Originally, this
circuit was driving a 6B4G PP output stage. Transformer-coupled,
naturally. I started with cap-coupled Mullard splitter using three 4P1L
direct-heated loktal pentodes. Not bad at all, but had insufficient gain.
Then I tried a plain Loftin-White configuration with a LL1660 interstage
(this one is a one-of-a-kind custom 30mA version.....(schematic added
05/08) |
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Single-port pin drives dual LED - 13-Oct-05 Issue of EDN
Single-line LED driving can be versatile..... [Design Idea by Tom Gay,
Dornstadt, Germany; Edited by Brad Thompson and Fran Granville] |
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Solenoid Driver Reduces Power & Cost - 07/18/96 EDN-Design Ideas EDN is
migrating links. This link is not verified. Search the "title" + "EDN" for new link.
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Sorting Out Backplane Driver Alphabet Soup - National Semiconductor
Application Note (app note added 2/06) |
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Square Wave Driver Has Flexible Outputs - This circuit can produce an output
signal ranging from DC to 100KHz. It can source a voltage ranging from 1v to 30v. It
can sink a voltage ranging from zero volts to –30v. It can drive up to 200ma of
current and can even be switched to a floating tristate output. …. [Designed by David
A. Johnson] |
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Stall Motor Switch Machine Circuits information - The circuits on this page
are basic designs for "Diode Matrix" switch machine control systems that can be used
to operate "Stall-Motor" switch machines in 'Ladder' type storage yards or other
multiple turnout areas. The driver circuits themselves use LM556 dual timer
chips to reverse the polarity of the voltage to the switch machine motors. [from Rob
Paisley's Model Train web site] |
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Stealth-mode LED controls itself - 5/25/06 EDN Design Ideas.....Since
the LED’s invention more than 30 years ago, its emission efficiency has steadily
increased, and, although it may surprise you, the increased conversion
efficiency works in two directions. Certain bright, efficient LEDs, such as
Hewlett-Packard’s (www.hp.com) HLMP-EG30-NR000, a red emitter molded in clear
encapsulation, also exhibit significant.....PDF has several circuits, you will need to
scroll to find this one..... [Design Idea by Howard Myers, Greensboro, NC] |
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Stepper Motor Controller - The direction of rotation is determined by the
FORWARD and REVERSE switches and the motor does not take any current when a switch is
not pressed. |
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Stepper Motor Controller (Aaron Cake) - (electronic circuit added 4/05)
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Stepper Motor Controller (interg) - There are many kind of stepper motors.
Unipolar type, Bipolar type, Single-phase type, Multi-phase type. Single-phase stepper
motor….(electronic circuit added 08/08/08). |
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Stepper Motor Controller Connection Diagrams - Four-Wire Connection The
ULN2003 / MC1413 is a 7-bit 50V 500mA TTL-input NPN darlington driver. This is
more than adequate to control a four phase unipolar stepper motor such as the
KP4M4-001. …..... |
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Stepper Motor Drive - (application / block diagram added 6/07) |
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Stepper Motor Driver (74194) - Probably the simplest, reversible drive
circuit is the H-Bridge. Some BEAMbots use H-bridge motor drivers; many more use an
H-bridge variant of some sort..….(design added 11/08) |
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Stepper Motor Driver using TEA3718/3717 - (circuit / schematic design added
6/06) |
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Stereo Line Driver - Power Amp Stereo Line Driver,This preamplifier has a
low output impedance, and is designed to drive long cables, allowing you to listen to
a remote music source without having to buy expensive screened cables. The very low
output… (added 4/02) |
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Switching regulator drives robot motor - 05/13/99 EDN-Design Ideas.....The
circuit in Figure 1 shows an example of how you can use an integrated switching
regulator (ISR] to efficiently vary the speed of a permanent-magnet dc motor. In this
application, the rotating head of a robot senses the presence of an oncoming object
(perhaps a human]. If the robot senses an object, it slows the rotation.....PDF
contains many circuits, scroll to find this one.… [Design Idea by Donald Comiskey,
Power Trends Inc, Warrenville, IL] |
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Switching regulator efficiently controls white LED current - 04/27/06
EDN-Design Ideas.....Circuit has 93% efficiency and beats 64% efficiency of series
resistor approach..... EDN is migrating links. This link is not verified. Search
the "title" EDN for new link. |
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Switching solenoid Driver - (circuit / schematic design added 6/06)
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Synchronous Buck/Boost High Power White LED Driver - Linear Technology
LT3453 (app note added 2/05) |
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