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Buck converter charger also provides system power - 05/22/97 EDN-Design
Ideas....Switching Regulator provides charge voltage setpoint with
Current regulation, and second Switching Regulator provides5V System Power
-Many systems require long-time operation during periods of power loss....
[Design Idea by Robert Hanrahan, National Semiconductor, Woodcliff Lake, NJ] |
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Capacitor & EMI Considerations New High Frequency Switching Regulators -
DN95 Design Notes (Linear Technology) (app note added 1/06)
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Ceramic output capacitors enhance internally compensated switchers -
20-Jul-06 Issue of EDN Restore switching regulator stability when you
change output-capacitor compositions.... [Design Idea by Robert Kollman,
Texas Instruments, Dallas, TX; Edited by Brad Thompson and Fran Granville] |
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Cheap PWM IC makes synchronous gate driver - 02/04/99 Issue of EDN
A system with a µP, memory, and peripherals usually requires several
power-supply voltages. Designers typically use local switching
regulators.... [Design Idea by Dimitry Goder, Switch Power Inc, Campbell,
CA] |
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Circuit charges supercapacitors to 7V from USB power - 04/26/07 EDN-Design
Ideas....Switching regulator charges three supercapacitors with current limit.…
[Design Idea by Fran Hoffart, Linear Technology, Milpitas, CA] |
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Circuitry for Single Cell Operation - AN15 Linear Technology 1.5V powered
circuits for complex linear functions are detailed. Designs include a V/F converter, a
10-bit A/D, sample-hold amplifiers, a switching regulator and other circuits. Also
included is a section of component considerations for 1.5V powered linear circuits.
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Decimal to BCD Convertor - This circuit will provide an output in Binary
Coded Decimal from any of the input switches. The input switches may be expanded to 16
switches, providing a Hexadecimal to BCD conversion.
.… [Ron J.] |
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Designing a Boost-Switching Regulator with the MCP1650 - Microchip
Application Note Published 1-Apr-05 (app note added 2/06) |
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Dual Switching Regulator Controller Operates from High Input Voltages LTC1267 -
DN114 Design Notes (Linear Technology) (app note added 1/06) |
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Efficiency Characteristics of Switching Regulator Circuits - AN46 Linear
Technology Efficiency varies for different DC/DC converters. This application
note compares the efficiency characteristics of some of the more popular types.
Step-up, step-down, flyback, negative-to-positive, and positive-to-negative are shown.
Appended sections discuss how to select the proper aluminum electrolytic capacitor and
explain power switch and output diode loss calculations. |
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Emergency Strobe Flasher Generates 250V - 08/05/99 EDN-Design
Ideas....Figure 1 shows a complete circuit for an emergency lamp that operates from a
12V automotive battery. The xenon flash tube requires a 250V-dc anode voltage and a
4-kV trigger pulse. To generate the 250V dc, IC1, [Design Idea by Jose Luis Arce,
Tecnosuma Havana, Cuba] |
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Extend low-output-voltage switching regulator's input range - 4-Jan-07 Issue
of EDN Switching regulator improves efficiency and allows 36V input.... [Design
Idea by Hua (Walker] Bai, Linear Technology, Milpitas, CA; Edited by Brad Thompson and
Fran Granville] |
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FAN5069 Component calculation & simulation tools/ AN-6010 - Fairchild
Application Notes / (app note added 6/06) |
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Hex Inverter Makes Low Cost Switching Regulator - 05/23/96 EDN-Design
Ideas....Simple and low-cost circuit converts5V to12V.... EDN is migrating links. This
link is not verified. Google the "title" EDN for new link. |
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High Efficiency Step-Down Switching Regulator - DN73 Design Notes
(Linear Technology) (app note added 1/06) |
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High-power LED drivers require no external switches - 19-Jul-07 Issue of EDN
Suiting a variety of applications, these circuits transform a switching regulator into
a current source for driving power LEDs.... [Design Idea by Alfredo H Saab and Steve
Logan, Maxim Integrated Products, Sunnyvale, CA] |
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Inductive Based Switching Regulator Circuits provide High Efficiency White LED Driver
- National Semiconductor Application Note 1250 September2002....[App Note]
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Inductor Selection for Lt 1070 Switching Regulators - DN8 Design Notes
(Linear Technology) (app note added 6/06) |
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Inductorless Switching Regulator Boosts Input Voltage - Maxim Application
Note #5 (app note added 5/08) |
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