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Digital variable resistor compensates voltage regulator - 07/09/09 EDN A
look-up table compensates for temperature drift.....(design idea added 08/09) |
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Direct Current Ignition Reference Design - This manual describes a reference
design of a Digital Direct Current Ignition for Motorbike by using the MC68HC908JK3.
The Motorola MC68HC908JK3 is a member of the HC08 Family of microcontrollers (MCUs).
It is a 8-bit low cost general purpose MCU with 16-bit free run timer. The features of
the MC68HC908JK3 include input ....(app note added 3/05) |
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Discrete low-drop voltage regulator - 5V, 1A max (circuit design added
10/06) |
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Don't Be Fooled by Voltage Reference Long-Term Drift and Hysteresis - DN229
Design Notes (Linear Technology) (app note added 1/06) |
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Drawing Power from a PC Serial Port - This circuits derives fairly low power, (mA
at5V) from a RS-232 serial connection. (NOTE: ASCIII drawing) (added 5/02) |
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Dual + / 15 Volt Power Supply - suitable for powering OpAmp circuits (added
5/02) |
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Dual 12V Power Supply - (Tony van Roon's circuit added 9/04) |
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Dual output LDO 250mA/500mA evaluator with load simulator - TPS70151EVM-152
provides a convenient method for evaluating the performance of TPS701xx dual output
linear regulators. The EVM provides proven and demonstrated reference designs and test
modes to aid in evaluation. (added 3/05) |
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Dual output nonisolated SMPS Powers appliances - 12/07/04 EDN-Design Ideas:
Modern appliances offer a range of features that rely heavily on microcontrollers and
auxiliary circuits. Although conventional iron-core transformers can provide ac
line-isolated, low-voltage power for a microprocessor, coupling the processor's
control signals to line-side power switches requires yet another layer of electrical
isolation, such as optocouplers or pulse transformers.....(design idea added 1/05) |
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Dual Output Regulator uses Only One Inductor - DN100 Design Notes (Linear
Technology) (app note added 1/06) |
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Dual Polarity Amplifier has Digital Control - 09/12/96 EDN-Design Ideas:
(design idea added 02/05) |
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Dual Polarity Peak Detector operates from Single Supply - 05/12/94 EDN-Design
Ideas: The circuit inFig 1 can detect the peak of either positive or negative
inputs, yet it operates from a single supply. The circuit uses two unity-gain
amplifiers to monitor the input signal, one an inverting amplifier and the other a
noninverting amplifier. A typical application is driving a VU meter. The
design.....(design idea added 2/05) |
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Dual Polarity Power Supply - This dual polarity power supply is easy to build,
requires few parts, and is adjustable from 0-15 volts. It is great for powering op amp
circuits, as well as other circuits that require a dual supply voltage.
….(design added 08/08) |
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Dual Polarity supply provides ±12V from one IC - 04/29/04 EDN-Design Ideas:
Well-regulated, dual-polarity power supplies find wide use in disk-drive,
handheld-device, automotive, and notebook-computer applications. In these
applications, board space and allowable component heights are continually shrinking.
So, power-supply designers face the challenge of providing split rails with
as.....(design idea added 1/05) |
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Dual Regulated Power Supply - (electronic circuit added 4/05) |
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Dual Regulated Power Supply - In this circuit, the 7815 regulatates the positive
supply, and the 7915 regulates the negative supply. The transformer should have a
primary rating of 240/220 volts for europe, or 120 volts for North America.
….(electronic schematic added 08/08) |
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Dual Regulators Power Pentium® Processor or Upgrade CPU - DN122 Design Notes
(Linear Technology) (app note added 2/06) |
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Dual Tracking + 15V - (electronic schematic / circuit added 4/02) |
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Dual Voltage Regulator meets USB Power needs - 08/19/04 EDN-Design Ideas:
This Design Idea stems from the limited availability of IC voltage regulators that can
meet key USB-power specs, coupled with the need for turn-on sequencing and rise-time
control at each output. As always, for PC-related designs, minimum cost is a primary
motivation. USB specs require all loads to limit.....(design idea added 1/05) |
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Dynamo Current and Voltage Regulator - (circuit added 05/07) |
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Easy Power Supply - (circuit / schematic added 6/05) |
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Efficient 100W Isolated Power Supply Reference Design using UCC3580-1 - This
reference design is an active-clamp forward converter that can deliver up to 30 A of
continuous current at 3.3 V from an input range of 35 V to 72 V. The active-clamp
topology with self-driven secondary synchronous MOSFETs allows the device to achieve
high efficiencies. The design includes remote sense connections for point-of-load
regulation and is footprint compatible with Half Brick Modules. (added 3/05) |
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Explanation and Experiment About Regulated DC Power Supply - many power supply
designs for different voltages, built from discrete components (added 5/02) |
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Extend low output voltage switching regulator's input range - 01/04/07 EDN-Design
Ideas: Switching regulator improves efficiency and allows 36V input.....(design
idea added 02/07) |
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Extend the input range of a Low dropout regulator - 10/17/02 EDN-Design Ideas:
Because of process limitations, all ICs have an input-voltage limitation. This
limitation can be cumbersome when you try to step down a high supply voltage to a
lower, regulated voltage using a dc/dc converter, such as a linear regulator. Adding a
FET to the input of a linear regulator creates a dc/dc converter with a
wider.....(design idea added 1/05) |
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Finesse Regulator Noise - System designers often find themselves battling power
supply hum, noise, transients, and various perturbations wreaking havoc with low noise
amplifiers, oscillators, and other sensitive devices. Many voltage regulators have
excessive levels of output noise including voltage spikes from switching circuits and
high flicker noise levels from unfiltered references.....(electronic circuit added
7/03) |
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Fixed Voltage Power Supply (Aaron Cake) - The fixed voltage power supply is useful
in applications where an adjustable output is not required. This supply is simple, but
very flexable as the voltage it outputs is dependant only on the regulator and
transformer you choose. The maximum output current is 1.5A.(electronic schematic /
circuit added 04/03/02) |
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Floating Input Extends Regulator Capabilities - DN21 Design Notes (Linear
Technology) (app note added 2/06) |
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Flyback LDO Buck Sync. Buck Reference Design - Flyback, LDO, Buck and Sync Buck
with Vin 10 to 16 V. Multiple output voltages of -24 V, -5 V, 1.5 V, 3.3 V, 5 V, 12 V
and 58 V. The total output power is 15 W. (added 3/05) |
|
Flyback with V in 36-72 V and V out +/-135 V - Flyback with Vin 36-72 V and Vout
+/135 V. The output current is 0.15 A with 20.25 W of output power. (added 3/05) |
