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A Simple Ultra-Low Dropout Regulator - DN32 Design Notes (Linear
Technology) (app note added 1/06) |
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AC line powers microcontroller-based fan-speed regulator - 9-Nov-06 Issue of
EDN Capacitor drops voltage, decreases waste heat in line-powered
controllers.... [Design Idea by Abel Raynus, Armatron International Inc, Malden, MA;
Edited by Brad Thompson and Fran Granville] |
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Active Clamp Forward Reference Design - This reference design is an
active-clamp forward converter that can deliver up to 24 A of continuous current at 5
V from an input range of 35 V to 75 V. The active-clamp topology with self-driven
secondary synchronous MOSFETs allows….(added 3/05 |
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Active-Preloading Provides Sinking Capability |
| - 01/02/97 EDN-Design Ideas....A simple
add-on circuit enables a unipolar power supply, usually a current-sourcing circuit
only, to sink current from a load.… [Design Idea by Michael Shrivathson, National
Semiconductor Corp, Santa Clara, CA] |
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Added components improve switching regulator stability - 29-Sep-05 Issue of
EDN Extra components reduce effects of external load capacitance and ESR....
[Design Idea by Wayne Rewinkel, National Semiconductor, Schaumburg, IL; Edited by Brad
Thompson and Fran Granville] |
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Adjustable 3Terminal Regulator for LowCost Battery Charging Systems -
National Semiconductor Application Notes, 28-Jun-1996/ (app note added 3/03)
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Adjustable Low-voltage Power Supply - If you want to check the behaviour of
an electronic circuit at low voltages, an adjustable power supply as shown here may be
helpful. Powered from a 3 to 16 volts source (DC for sure), it will provide a stable
output voltage in the 0 to 1.5 V range.….must register on this site.... [Published in
Elecktor July/August 2010] |
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Adjustable power supply - Schematic only, no circuit description
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Adjustable Power Supply (Aaron Cake) - well filtered variable1.2-30 volts
at5 amps using LM338K (added 5/02) |
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Adjustable Power Supply using LM317 - voltage regulator for1.2V to35-Volt
output voltages and up to1A load (added 5/02) |
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Adjustable Power Supply with Charger - This power supply has adjustable and
charger output. The charger circuit can be use for cellular phone. The adjustable
output serves as multipurpose power supply. It can handle a 1 ampere current. The 317
must have a heat sink…. [Circuit designed by Milardo de Guzman] |
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Adjustable Step Up Voltage Regulator - Find out more about a step up voltage
regulator used to output a voltage higher than the input voltage…. [REUK - Renewable
Energy UK website] |
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Adjustable Voltage Regulator - Many amateurs have stopped by their local
Radio Shack store and have noticed the famous LM317T adjustable voltage regulator.
But, did you know that all voltage regulators are adjustable? Yes, any IC voltage
regulator can be adjusted to a higher voltage than its fixed voltage by just adding a
couple of resistors.... [Radio Amateur Society of Norwich] |
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Alarm Power Supply With Battery Back-up - This Power Supply is suitable for
the Modular Burglar Alarm. However, it has other applications. It is designed to
provide an output of 12-volts, with a current of up to 1-amp. In the event of mains
failure, the back-up battery takes over automatically....(Circuit design added
08/08/08) |
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Alarm PSU - A 12 Volt power suppiled designed for Ron's Modular Burglar
Alarm. However, being a popular supply voltage this circuit will have many other uses
as well….(circuit / schematic design added 6/06) |
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Amperage Booster for 78xx's - Volt regulators such as the LM708, and LM317
series (and others) sometimes need to provide a little bit more current then they
actually can handle. If that is the case, this little circuit can help out.
A power transistor such as the 2N3772 or similar can be used (See the project on the
3-part variable power supply).…. |
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Amperor 12 Volt LCD TFT Stabiliser - A 12V regulator for use with flat
screen televisions and more…. [REUK - Renewable Energy UK website] |
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AN-103: LM340 Series Three Terminal Positive Regulators - National
Semiconductor Application Note (app note added 2/06) |
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AN-1118:Simple Regulator Provides ±12V from 5V Source - National
Semiconductor Application Note (app note added 2/06) |
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AN-1378: Method for Calculating Output Voltage Tolerances in Adjustable Regulators
- National Semiconductor Application Note (app note added 2/06)
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AN-161: Application Note 161 IC Voltage Reference has 1 PPM per Degree Drift -
National Semiconductor Application Note (app note added 2/06) |
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AN-178: Applications for an Adjustable IC Power Regulator - National
Semiconductor Application Note (app note added 2/06) |
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AN-18: Thermometer Applications of the REF-02 - AN-18 Analog Devices
Application Note....[App Note] |
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AN-181: 3-Terminal Regulator is Adjustable - National Semiconductor
Application Note (app note added 2/06) |
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AN-182: Improving Power Supply Reliability with IC Power Regulators -
National Semiconductor Application Note (app note added 2/06) |
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AN-21: 4-20 mA Digital-to-Process Current Transmitter - AN-21 Analog Devices
Application Note....[App Note]Describes a 3 I.C. Digital to 4-20 mA Current Output
Circuit (DAC08, REF01 and OP221) |
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AN-214: Ground Rules for High Speed Circuits - AN-214 Analog Devices
Application Note....[App Note]Layout and Wiring Are Critical in Video Converter
Circuits. |
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AN-23: The LM105-An Improved Positive Regulator - National Semiconductor
Application Note (app note added 2/06) |
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AN28 the ZLDO Series of Low Dropout Voltage Regulators - Zetec
Semiconductors Applications Notes The ZLDO series of regulators provide
lowest dropout voltage currently available in ir class. Application examples covering
dropout and or important features of series are discussed. (app note
added 2/06) |
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AN-347: Shielding & Guarding - AN-347 Analog Devices Application
Note....[App Note]How to Exclude Interference-Type Noise. What to do and Why to do
it-A Rational Approach |
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AN-348: Avoiding Passive-Component Pitfalls - AN-348 Analog Devices
Application Note....[App Note]The Wrong Passive Component Can Derail Even Best
Op Amp or Data Converter. Here Are Some Basic Traps to Watch For. |
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AN-349: Keys to Longer Life for CMOS - AN-349 Analog Devices Application
Notes (app note added 09/08) Here's How CMOS Can be Protected Against Abuse
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AN-56: 1.2 Volt Reference - National Semiconductor Application Note
(app note added 2/06) |
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AN-711: LM78S40 Switching Voltage Regulator Applications - National
Semiconductor Application Note (app note added 2/06) |
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AN-713: The Effect of Long-Term Drift on Voltage References - AN-713 Analog
Devices Application Note....[App Note] |
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AN-715: LM385 Feedback Provides Regulator Isolation - National Semiconductor
Application Note (app note added 2/06) |
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AN792: A Method to Determine How Much Power a SOT23 can Dissipate in an Application
- Microchip Application Note Published 18-Jul-01 (app note added 2/06)
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AN860: RFRXD0420 ASK Receiver Reference Design - Microchip Application Note
Published 27-Dec-02 (app note added 2/06) |
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Applications for an Adjustable IC Power Regulator - National Semiconductor
Application Note 04-Nov-1995/ (app note added 3/03) |
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Automatic Local Sensing Improves Regulation - 1/04/96 EDN-Design Ideas....A
power supply usually needs to provide a regulated voltage across a load, but there is
always some voltage drop across the conductors that carry the current to the load. Two
common techniques help the supply to achieve the proper voltage across the load.
One.... [Design Idea by Jimmie D Felps, Hewlett-Packard Colorado Springs, CO] |
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Autoreferencing circuit nulls out sensor errors - 24-Jan-02 Issue of EDN
The autoreferencing circuit in Figure 1 nulls out the error of a sensor, such as a
pressure transducer, at its reference level-for example, at ambient pressure. The
circuit is an analog-digital-feedback control system that uses a digitally
programmable potentiometer to provide the variability.... [Design Idea by Chuck
Wojslaw, Catalyst Semiconductor, Sunnyvale, CA] |
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Avoiding Passive-Component Pitfalls - AN-348 Analog Devices Application
Note....[App Note]The Wrong Passive Component Can Derail Even Best Op Amp or
Data Converter. Here Are Some Basic Traps to Watch For. |
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