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Regulator Circuits, Page 3
Regulators:  #'s      A      B - C      D - H      I - L      M - Q      R - S      T - Z

Last Updated on: Wednesday, December 20, 2017 02:13 PM


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

Battery Backup Regulator is Glitch-Free & Low Dropout -  DN170  Design Notes (Linear Technology) (app note added 2/06)
Bi-Directional Motor Speed Regulator -  02/05/2004  EDN-Design Ideas  In low-noise analog circuits, a high-gain amplifier serves at  input to increase  SNR. The input signal level determines  input-stage gain; low-level signals require  highest gain. It is also standard practice in low-noise analog-signal.... [Designed by Andrew R. Morris  (added 10/05)]
Big Power for Big Processors: The LTC1430 Synchronous Regulator -  DN113  Design Notes (Linear Technology) (app note added 1/06)
Boost Regulator Makes Low Profile SEPIC with Both Step-Up & Step-Down Capability -  DN317  Design Notes (Linear Technology) (app note added 2/06)
Boosted LM317/LM337 Regulators -  Transistors types have been altered to ones that are more readily available. ….(electronic schematic added 11/08)
Boosting Regulator Current -  An outboard pass transistor used to increase the current output of a voltage regulator IC…. [dircuit design by Andy Collison]
Buck boost regulator suits battery operation -  4-Sep-03 Issue of EDN  A buck/boost converter can step a voltage up or down. Such a converter is appropriate for battery-powered applications. One application derives a regulated 14.1V at 1A from 12V solar panels with 9 to 18V variation..... [Design Idea by Kahou Wong, On Semiconductor, Phoenix, AZ]
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. Often, a gel or wet-cell lead-acid battery is  best choice because of high capacity and relatively low cost. The battery charges.... [Design Idea by Robert Hanrahan, National Semiconductor, Woodcliff Lake, NJ]
Buck converter works efficiently from phone line -  02/15/00 EDN-Design Ideas.... EDN is migrating links. This link is not verified.  Search the "title" + "EDN" for new link.
Buck or Boost: Rugged Fast 60V Synchronous Controller Does Both -  DN370  Design Notes (Linear Technology)  (app note added 1/06)
Buck regulator forms high power, inverting –5V supply -  1-Apr-04 Issue of EDN  Configuring a step-down switching-converter IC as an inverter yields an efficient, high-power, -5V supply that can of deliver currents as high as 4.5A at the 12V input or 3.2A at the 5V input (Figure 1]. Conventional inverting power supplies do their switching using a p-channel MOSFET (Figure 2]. That configuration works well at lower currents, but has limited use above approximately 2A, depend.... [Design Idea by Bruce Denmark, Maxim Integrated Products, Sunnyvale, CA]
Buck regulator operates without a dedicated clock -  21-Aug-03 Issue of EDN  Most switching regulators rely on a dedicated clock oscillator to determine the switching frequency of operation. A dedicated oscillator circuit within the power controller usually generates the clock signal. A class of hysteretic switching regulators can actually operate at a relatively fixed frequency without a clock, even with changing input-line and output-loading conditions.... [Design Idea by Robert Bell, National Semiconductor, Phoenix, AZ]
Buck Regulator Terminates Fast Data Buses -  07/20/95 EDN-Design Ideas The limitations of 5 and 3.3V CMOS buses are spurring the development of high-speed, low-voltage buses for the next generation of computers. These buses, such as Futurebus and Rambus, require low-voltage supply rails to reduce signal-voltage swings. Other buses, such as CTT (center-terminated transceiver) and HSTL (high-speed transceiver logic), have center termination and, therefore, require a power source that can sink current as well as source it.... [Design Idea by Bruce Moore, Maxim Integrated Products, Sunnyvale, CA]
Buck Regulator uses Step Up Controller -  11/09/95 EDN-Design Ideas....The circuit in Fig 1uses a step-up (boost) dc/dc controller in a negative buck-regulator application. The circuit’s function is to power the laser diode in an optical amplifier/booster unit, a job for which no commercial IC is available. The anode of the laser diode connects to ground, so the supply voltage must be negative and must deliver 160 to 750 mA. Although the boost-regulator IC operates in a buck-regulator circuit, its standard connections permit proper control of Q1. However, you need an op amp.... [Design Idea by Massimo De Marco, Maxim Integrated Products Cusano Milanino, Italy]
Buck/Boost Charge Pump Regulator Powers White LEDs from a Wide 1.6 Volt to 5.5 Volt Input -  Maxim Application Note #1021 (app note added 5/08)
Buck-boost regulator suits battery operation -  09/04/03 EDN-Design Ideas....A buck/boost converter can step a voltage up or down. Such a converter is appropriate for battery-powered applications. One application derives a regulated 14.1V at 1A from 12V solar panels with 9 to 18V variation. In this type of battery application, efficiency is an important factor; hence, this design uses an inexpensive synchronous-rectifier-based MC33166/7 circuit.... [Design Idea by Kahou Wong, On Semiconductor, Phoenix, AZ]
Capacitor & EMI Considerations New High Frequency Switching Regulators -  DN95  Design Notes (Linear Technology) (app note added 1/06)
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]
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 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....Page includes several designs.  Scroll to find this one.... [Design Idea 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.… [Design Idea by Fran Hoffart, Linear Technology, Milpitas, CA]
Circuit limits dV/dt and capacitor inrush at regulator turn on -  11-Oct-07 Issue of EDN  Adding a simple circuit to the adjust pin of a regulator controls the dV/dt of the output voltage, limiting inrush current.... [Design Idea by W Stephen Woodward, Chapel Hill, NC]
Circuitry for Signal Conditioning & Power Conversion -  AN75 Linear TechnologyThis publication includes designs for data converters and signal conditioners, transducer circuits, crystal oscillators and power converters. Wideband and micropower circuitry receive special attention. Tutorials on micropower design techniques and parasitic effects of test equipment are included.
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.
Compact Inductorless Boost Circuit Regulates White LED Bias Current -  Maxim Application Note #1116 (app note added 5/08)
Compact Step-Up Converter Conserves Battery Power -  DN358  Design Notes (Linear Technology)  (app note added 1/06)
Create a Virtual Ground with the LT1118-2.5 Sink/Source Voltage Regulator -  DN115  Design Notes (Linear Technology) (app note added 2/06)
Regulators:  #'s      A      B - C      D - H      I - L      M - Q      R - S      T - Z


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