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Li'l PowerHouse Switchmode Power Supply- This highly efficient design can deliver from 1.23V to 40V at currents up to 1.2A.__ SiliconChip
Li'l PowerHouse Switchmode Power Supply; Pt.2- Second article has all the construction details. And we've improved the output filtering for even better performance.__ SiliconChip
Linear Supply for Luxeon 1W Star LEDs- Simple circuit lets you run one or more Luxeon 1W Star LEDs from a 12V DC supply. It uses low-cost parts and allows for dimming as well.__ SiliconChip
Linear supply uses switch-mode regulation- 07/19/01 EDN Design Ideas: You can use simple circuits to implement small, regulated plug-in power supplies. In Figure 1, a basic and versatile 5V supply uses a zener diode and an emitter-follower transistor. You must calculate and design the transformer suc Design by David Magliocco, CDPI, Scientrier, France
Low Power DC to DC Converter- The circuit below is a DC to DC converter using a standard 12 VAC center tapped power transformer wired as a blocking oscillator. The circuit is not very efficient but will produce a high voltage usable for low power applications. The input battery voltage is raised by a factor of 10 across the transformer and further raised by a voltage tripler consisting of three capacitors and diodes connected to the high voltage side of the transformer __ Designed by Bill Bowden
LTC Design Note: 42V quad Monolithic synchronous step-down regulator with 30μA quiescent current- EDN-Design Ideas - 08/30/2016 This circuit impresses with four 2.2MHz bucks in a tiny package - Circuit Design
LTC Design Note: Dual 9A, step-down μModule regulator with digital power system management- EDN-Design Ideas - 08/01/2016 This power micro-module includes voltage control and telemetry readback (including temperature, Vin/out & Iin/out) via PMBus - Circuit Design
LTC Design Note: Versatile industrial power supply takes high voltage input & yields from eight 1A to two 4A outputs- November 27, 2014-EDN-Design Notes This ultra-flexible, highly-featured switching regulator IC might be perfect for your next complex and/or industrial design. Design by Martin Merchant
LTC1626: Step-Down Converter Operates from Single Li-ION Cell- DN196 Design Notes__ Linear Technology/Analog Devices
Method provides self-timing for synchronous rectifiers- 05/16/02 EDN Design Ideas: Synchronous rectifiers are MOSFETs, driven in such a way as to perform a rectifying function. They often take the place of diodes in the output-rectification stage of switching power converters, because of their lower on-state power loss. In power circuits, synchronous rectifiers are often complicated to use because of timing issues Design by Giampaolo Carli, SAE Power Co, Saint-Lazare, Quebec, PQ, Canada
Micropower Buck/Boosts Part 1: Converting Three Cells to 3.3V*- DN109 Design Notes__ Linear Technology/Analog Devices
Micropower Buck/Boosts Part 2: Converting Four Cells to 5V*- DN110 Design Notes __ Linear Technology/Analog Devices
Negative-To-Negative Switch-Mode Converter Offers High Current & High Efficiency- 11/12/09 EDN Design Ideas: Don't let variations in input voltage affect the output voltage Design by Budge Ing, Maxim Integrated Products Inc, Sunnyvale, CA
No Design Switiching Regulator 5V Buck/Boost Positive to Negative Regulator- DN49 Design Notes__ Linear Technology/Analog Devices
RC network quashes auxiliary winding in quasiresonant converter- 04/01/04 EDN Design Ideas: Quasi-square-wave-resonant converters, also known as QR (quasiresonant] converters, allow the design of flyback-type SMPSs (switch-mode power supplies] with a reduced EMI (electromagnetic-interference] signature and improved efficiency Design by Nicolas Cyr, On Semiconductor, Toulouse, France
Reduce EMI by sweeping a power supply's frequency- 27-May-04 EDN Design Ideas: Switching power supplies can be notorious noise generators. You should prevent this noise, which is conducted, radiated, or both, from returning to the input source, where it can potentially wreak havoc on other devices operating from the same input power. The goal of an EMI (electromagnetic-interference] filter is to block this noise and provide a low-impedance path back to the noise source Design by John Betten, Texas Instruments, Dallas, TX
Reduce negative-voltage stresses on control IC- 04/18/02 EDN Design Ideas: In a synchronous, buck switching power supply, the two FETS and the output inductor meet at the phase node (Figure 1). The phase node often connects directly to the control IC. The voltage on this node swings from the input voltage Design by Michael Day, Texas Instruments Inc, Dallas, TX
Self switching Power Supply- One of the main features of the regulated power supply circuit being presented is that though fixed-voltage regulator LM7805 is used in the circuit, its output voltage is variable. This is achieved by connecting a potentiometer between common terminal of regulator IC and ground. For every 100-ohm increment in the in-circuit value of the resistance of potentiometer VR1, __ |
