Regulator Circuits, Page
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Regulators: #'s
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L M - Q
R - S T -
Z
Last Updated on:
Friday, June 04, 2021 01:53 PM |
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Links to electronic circuits, electronic schematics and designs for engineers,
hobbyists, students & inventors:
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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] |
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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 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.
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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) |
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Regulators:
#'s A
B - C D -
H I - L
M - Q R -
S T - Z |