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Switching Regulators Circuits

Switching Regulators:   #'s - B    C - K     L - R     S - Z
 

Last Updated: October 24, 2017 02:55 PM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Capacitor & EMI Considerations New High Frequency Switching Regulators -  DN95 Design Notes__ Linear Technology/Analog Devices

CCD Bias Supply (15V,-8V) -  From 2.7V to 5V input, the LT3463 generate the positive (15V AT 10mA) and negative (-8V AT 50mA) bias voltages required for CCD imaging sensors __ Linear Technology/Analog Devices App Note, Mar 24th 2010

Ceramic output capacitors enhance internally compensated switchers -  07/20/06  EDN Design Ideas:  Restore switching regulator stability when you change output-capacitor compositions __ Circuit Design by Robert Kollman, Texas Instruments, Dallas, TX

Charge Supercapacitors to 7V from USB Power -  04/26/07 EDN Design Ideas:  Switching regulator charges three supercapacitors with current limit.    __ Circuit Design by Fran Hoffart, Linear Technology, Milpitas, CA

Cheap PWM IC makes synchronous gate driver -  02/04/99 EDN Design Ideas:  NOTE:    Page includes several designs.  Scroll to find this one.  A system with a µP, memory, and peripherals usually requires several power-supply voltages.  Designers typically use local switching regulators to produce the desired voltage rails.  One of the most common topologies, the synchronous buck regulator, converts a 5 or 12V bus to some other, lower voltage.  This approach has gained vast acceptance, thanks to its relative simplicity __ Circuit Design by Dimitry Goder, Switch Power Inc, Campbell, CA

Circuit Charges Supercapacitors to 7V from USB Power -  04/26/07 EDN Design Ideas:  Switching regulator charges three supercapacitors with current limit.    __ Circuit Design by Fran Hoffart, Linear Technology, Milpitas, CA

Circuitry for Single Cell Operation -  AN15 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.  __ Linear Technology/Analog Devices

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. 
.   __ Designed by Ron J.

Design a Simple, Efficient & Reliable Forward Converter -  Due to the high cost and inflexibility of isolated DC/DC converter modules, many designers are choosing to implement a discrete design that is better matched to their application.  In particular, the forward converter with active clamp reset has been widely used in custom supplies because of its excellent efficiency and reduced__ Linear Technology/Analog Devices App Note, Kurk Mathews Senior Applications Engineer-Power Products Jun 14th 2012

Diode Turn-On Time Induced Failures in Switching Regulators -  Linear Technology AN122 __ Designed by Jim Williams - Jan 16th, 2009

Dual Supercapacitor Backup Power Supply, 0.5V to 5V -  The LTC3122 is a synchronous step-up DC/DC converter with true output disconnect and inrush current limiting.  The 2.5A current limit along with the ability to program output voltages up to 15V makes the LTC3122 well suited for a variety of demanding applications.  Once started, operation will continue with inputs down to 500mV, __ Linear Technology/Analog Devices App Note, Jun 19th 2013

Dual Supply from Single Battery Source -  This circuit provides both +9V as well as -9V supply from a single 9V battery.  It consists of timer 555 IC , negative-voltage regulator IC and a few discrete components.  __ 

Dual supply suits Portable systems -  10/14/00 EDN Design Ideas:  The primary concern with power management in portable equipment is to prolong battery life by eliminating unnecessary energy consumption.  The dual-output power supply in Figure 1 meets this objective and maintains regulated 5 and __ Circuit Design by Budge Ing, Maxim Integrated Products, Sunnyvale, CA

Dual Switching Regulator Controller Operates from High Input Voltages LTC1267 -  DN114 Design Notes__ Linear Technology/Analog Devices

Efficiency Characteristics of Switching Regulators -  AN46 Efficiency varies for different DC/DC converters.  This App 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.  __ Linear Technology/Analog Devices

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, IC 1,  __ Circuit Design by Jose Luis Arce, Tecnosuma Havana, Cuba

Energy Harvesting Converter Operates from a Variety of Weak Sources -  The LTC3129 is a high efficiency, 200mA buck-boost DC/DC converter with a wide ViN and VOUT range.  It includes an accurate RUN pin threshold to allow predictable regulator turn-on and a maximum power point control (MPPC) capability that ensures maximum power extraction from non-ideal power sources such as photovoltaic panels.  __ Linear Technology/Analog Devices App Note, Feb 15th 2013

Extend low-output-voltage switching regulator's input range -  01/04/07  EDN Design Ideas:  Switching regulator improves efficiency and allows 36V input __ Circuit Design by Hua  Walker Bai, Linear Technology, Milpitas, CA

HB-LED flashing beacon repurposes switching regulator -  EDN Design Ideas:  08/04/2014     A classic, low-cost “switcher” IC is repurposed to flash a high-brightness LED in this minimal-parts-count Design ideas -  __ Circuit Design by T A Babu

Hex Inverter Makes Low Cost Switching Regulator -  05/23/96 EDN Design Ideas:  Simple and low-cost circuit converts5V to12V __ Circuit Design by Dimitry Goder, Switch Power Inc, San Jose, CA

High Efficiency Dual 13A or Single 26A μModule Regulator -  Linear Technology's LTM4620 uses a proprietary lead frame design to package high power regulators into a very small form factor with effective thermal conduction through the top and bottom of the µmodule product.  The device can be connected in parallel to support higher current applications with very accurate current sharing__ Linear Technology/Analog Devices App Note, Eddie Beville-Design Manager uModule Products Sep 10th 2012

High Efficiency Step-Down Switching Regulator -  DN73 Design Notes__ Linear Technology/Analog Devices

High Efficiency, UltraLow IQ, 42V, 2.5A Sync Buck Regulator -  The LT®8610 step-down regulator integrates key high performance features in one compact IC .  It offers synchronous rectification, for efficiencies up to 96%.  The low quiescent current of 2.5µA extends battery life and saves extra circuitry.  High speed switching minimizes board space and helps avoid EMI problems.  A low dropout __ Linear Technology/Analog Devices App Note, Leonard Shtargot Staff Engineer-Power Products Jun 14th 2012

High-power LED drivers require no external switches -  07/19/07 EDN Design Ideas:  Suiting a variety of applications, these circuits transform a switching regulator into a current source for driving power LEDs __ Circuit Design by Alfredo H Saab and Steve Logan, Maxim Integrated Products, Sunnyvale, CA

Inductor Selection for Lt 1070 Switching Regulators -  DN8 Design Notes__ Linear Technology/Analog Devices

Inductorless Switching Regulator Boosts Input Voltage -  App Note #5__ Maxim Integrated

Industrial 12V 1MHz Regulator with Custom Input Undervoltage Lockout Thresholds -  The LTC3115-1 is a high voltage monolithic synchronous buck-boost DC/DC converter.  Its wide 2.7V to 40V input and output voltage ranges make it well suited to a wide variety of automotive and industrial applications.  A proprietary low noise switching algorithm optimizes efficiency with input voltages that are above, below or__ Linear Technology/Analog Devices App Note, Mar 29th 2012

Isolated flyback regulator with LM2577 -  (5V/150mA, 7.5V/100mA, and -7.5V/70mA).__ hobbyteam @ hobby-hour.com

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Switching Regulators:   #'s - B    C - K     L - R     S - Z

 


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