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HT0640 for Electronic Line Switch - Supertex Semiconductors (app note added
2/06) |
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Hysteretic regulators provide high Performance at Low cost - 09/02/04 EDN-Design
Ideas: Hysteretic voltage regulators offer the potential advantages of
simplicity, fast response, 100%-duty-cycle operation, high efficiency at light
loading, and low cost. They need no loop-compensation components to add delays; thus,
response time to a load change is less than one switching cycle. What's the
catch?.....(design idea added 1/05) |
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IC Provides OnCard Regulation for Logic - National Semiconductor Application Note
04-Nov-1995/ (app note added 3/03) |
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IC Voltage Reference has 1 Ppm Per Degree Drift - National Semiconductor
Application Note 04-Nov-1995/ (app note added 3/03) |
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Improving Power Supply Reliability with IC Power Regulators - National
Semiconductor Application Note 04-Nov-1995/ (app note added 3/03) |
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Increasing Regulator Current - you can boost 78xx regulator output with1-power
transistor (added 5/02) |
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L200 Regulator Circuit - easy to power supply with1-single L200 IC, offers a
variable current limit of up to2 A, as well as voltage regulation (added 5/02) |
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Lantern Flasher/Dimmer - The electronic lantern control circuit adds
high-efficiency dimming and flashing to an existing battery-powered lantern or
flashlight or to a custom design. For the car it makes a great lamp for changing
a flat tire, back seat reading or emergency engine work. The flasher mode is
useful for warning other drivers of your troubles and it may be adjusted ,... (Tony
van Roon's electronic design added 2/06) |
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Lantern Flasher/Dimmer (techlib) - The electronic lantern control circuit (fig. 1)
adds high-efficiency dimming and flashing to an existing battery-powered lantern or
flashlight or to a custom design. For the car it makes a great lamp for changing a
flat tire, back seat reading or emergency engine work. The flasher mode is useful for
warning other drivers....(circuit / schematic design added 6/06) |
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Lantern Flasher/Dimmer (tomzi.geo) - Basically a high-efficiency dimmer, but can
also be used as a flasher. In dimmer mode, the LM358 (dual op-amp) is wired to send
pulses at a constant frequency. By adjusting the width of these pulses, brightness of
the bulb is controlled. In flasher mode, the same potentiometer(circuit / schematic
added 03/0303) |
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LB-15: Linear Brief 15 High Stability Regulators - National Semiconductor
Application Note (app note added 2/06) |
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LB-34: Linear Brief 34 a Micropower Voltage Reference - National Semiconductor
Application Note (app note added 2/06) |
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LB-41: Linear Brief 41 Precision Reference uses Only Ten Microamperes - National
Semiconductor Application Note (app note added 2/06) |
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LDO Buck/Boost 2 Sync Buck Sync Boost Reference Design - LDO, Buck/Boost, 2 Sync.
Buck, Sync. Boost with Vin 2.7-4.2 V LiION or 4.5-6.5 V adapter. Multiple output
voltages of 1.5 V, 2.5 V, 3.3 V and 8 V. The total output power is 5.5 W. (added 3/05) |
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LDO Circuit Provides Smart Power Monitoring - 10/24/96 EDN-Design Ideas:
(design idea added 3/03) |
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Light Bulb Voltage Regulator - (circuit added 7/02) |
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Line Power Supply - This circuit provides a regulated output without a power
transformer. It is similar to common circuits, except that a zener diode is replaced
with an SCR. This is far more robust against line voltages surges than a zener diode
version, plus there is no heat generation. C1 sets the available current (20mA/uF @
60Hz)....Designed by Andrew R. Morris (added 09/05) |
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Linear Brief 41 Precision Reference uses Only Ten Microamperes - National
Semiconductor Application Note 02-Mar-1999/ (app note added 3/03) |
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Linear Regulator Converts 3.3 to 2.9V - 03/16/95 EDN-Design Ideas: (design
idea added 03/03/03) |
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Linear regulator=Low cost DC/DC converter - 06/13/02 EDN-Design Ideas: The
circuit in Figure 1 is a good choice if you need a power supply with high efficiency
and you don't want to use expensive dc/dc-converter ICs. The heart of the circuit is
IC1, the common, inexpensive LM7805 linear regulator. The external switch is a pnp
transistor; the circuit can easily source more than 1A output current.....(design idea
added 1/05) |
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Linear Regulators Theory of Operation and Compensation - National Semiconductor
Application Note 24-May-2000/ (app note added 3/03) |
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LM105An Improved Positive Regulator - National Semiconductor Application Note
04-Nov-1995/ (app note added 3/03) |
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LM267X 3A 5A Evaluation Board - The LM267X evaluation board was developed for the
evaluation of LM267X SIMPLE SWITCHER series of 3 Amp and 5 Amp high efficiency
step-down (Buck) switching voltage regulators. (app note added 3/05) |
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LM317 Regulator Circuit - (electronic schematic / circuit added 4/02) |
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LM317 Regulator with Pass Transistor - (electronic schematic / circuit added 4/02) |
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LM317 variable power supply - A truly timeless circuit. LM317 is a versatile and
highly efficient 1.2-37V voltage regulator that can provide up to 1.5A of current with
a large heat sink. It's ideal for just about any application. This was my first
workbench power supply and I still use it. Since LM317 is protected against
short-circuit, no fuse is necessary.....(added 10/05) |
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LM317 Variable Voltage Regulator - (electronic schematic / circuit added 4/02) |
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LM317T Variable Voltage Regulator - The LM317T is a adjustable 3 terminal positive
voltage regulator capable of supplying in excess of 1.5 amps over an output range of
1.25 to 37 volts. The device also has built in current limiting and thermal shutdown
which makes it essentially blow-out proof.,.... (added 05/06/07) |
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LM340 Series Three Terminal Positive Regulators - National Semiconductor
Application Note 04-Nov-1995/ (app note added 3/03) |
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LM385 Feedback Provides Regulator Isolation - National Semiconductor Application
Note (app note added 2/06) |
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LM78S40 Switching Voltage Regulator Applications - National Semiconductor
Application Note (app note added 2/06) |
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Logic PSU with OverVoltage Protection - 5 volt regulated power supply for TTL and
74LS series integrated, includes output overvoltage fault protection/ (added 3/03) |
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Low Battery Detector Preregulates Input Voltage - 08/15/96 EDN-Design Ideas:
(design idea added 3/03) |
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Low dropout linear regulators deliver constant currents - 5/11/06 EDN-Design
Ideas: High-side current source uses a positive-output linear voltage regulator
to deliver 25 mA.....(design idea added 10/06) |
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Low dropout linear regulators double as voltage supervisor circuits
- 03/16/06 EDN-Design Ideas: You can use this circuit as a voltage supervisor or
as a controlled-characteristic linear-voltage regulator.....(design idea added 10/06) |
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Low dropout regulator SMPS cascade suppress ripple maintain efficiency - 08/03/06
EDN-Design Ideas: Two regulators work better than one in noise-sensitive
applications.....(design idea added 10/06) |
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Low Voltage High Current Time Delay Circuit - (circuit / schematic added 2/03) |
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Low-dropout 12V regulator LM324 - (circuit / schematic added 6/05) |
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LT1580 Fast Response Low Dropout Regulator Achieves 0.4 Dropout at 4 Amps - DN119
Design Notes (Linear Technology) (app note added 2/06) |
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Luxeon for Camera Phone Flash PDA and DSC Applications - This reference design
outlines the key considerations in the construction of a solid state, high performance
flash solution utilizing Luxeon LED technology. This design integrates Lumileds’ high
power Luxeon Emitters product with a cost effective lens solution to provide the
necessary light output and illumination pattern suited to digital still camera
(DSC)....(added 3/05) |
