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Power
Supplies: Switch Mode
Page 4
Switchmode Power Supply:
#'s-A, B-E,
F-R,
S,
T-V
Boost, Buck,
Buck/Boost
Power Supplies -- Main
Page
Converters -- Main Page
Last Updated on:
Thursday, November 30, 2017 01:58 PM |
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Links to electronic circuits, electronic schematics, designs for engineers,
hobbyists, students & inventors:
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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.... |
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SIMPLE SWITCHER PCB Layout Guidelines - National Semiconductor
Application Note (app note added 2/06) |
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Simple Switching Power Supply (karl lunt) - I built a PCB for a
simple switching power supply, originally designed by Keith Payea of the
SRS. It uses an LM393, a P-channel power MOSFET, and darn little else.
Since its frequency varies based on load (and nearly everything else
imaginable), you can use junk-box parts and build it for cheap....
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Single FET Controls 2nd LED Array in Switchmode LED Backlight -
Maxim APP1871: Feb03,2003 / (app note added 5/08) -A design in which the
display is backlit (or frontlit) for extended periods needs an efficient
circuit that drives the LEDs with a controlled current, and eliminates...
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Single IC Five Output Switching Power Supply System for Portable Electronics -
DN150 Design Notes (Linear Technology) (app note added 6/06) |
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[_OLD-ads-dont_upload/OLD I-ADS from web/ad-djandassoc.htm] |
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SMPS Basics-The Buck Converter - ....(spice design added 02/09) |
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SMPS Power Loss - ....(spice design added 02/09) |
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Soft-Start Controller for Switching Power Supplies - Microchip Application
Note Published 29-Nov-04 (app note added 2/06) |
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SPICE Predicts Differential Conducted EMI from Switching Power Supplies -
02/03/97 EDN-Design Feature Spice not only can predict the exact EMI levels
produced by a switched-mode power supply, but also can produce plots that allow you to
easily evaluate your design and the effectiveness of the EMI filter. [Design Feature
by Christophe Basso, Sinard, France] |
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Switch Mode Battery Eliminator Based on a PIC16C72a - Microchip Application
Note Published 25-Mar-99 (app note added 2/06) |
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Switch Mode DC Supply - The switching power supply, shown in the schematic,
provides12 volts, at10 amps, maximum, using a discrete transistor regulator with an
op-amp functioning as a comparator in the feedback circuit. The supply was constructed
in1984 and is variable frequency, as opposed to the pulse width modulator (PWM)
controllers used today. (added 4/02) |
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Switched gain op amp serves as phase detector or mixer - 1-May-08 Issue of
EDN By switching the disable input of an op amp at a reference frequency and
lowpass-filtering its output, you can obtain a dc voltage proportional to the phase
difference.... [Design Idea by W Bruce Warren, Marietta, GA] |
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Switched Mode Regulator - Battery Eliminator (circuit added 09/06)
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Switched-capacitor IC and
reference form elegant –48 to +10V converter 04/24/03 EDN-DEsign Ideas....A system
designer must almost always face a trade-off in choosing the right part for an
application. The trade-off usually involves performance, price, and function. An
example is the issue of powering circuits from a telecom-voltage source. Telecom
systems almost exclusively use high-potential negative rails, such as -48V.... [Design
Idea by Wallace Ly, National Semiconductor, Santa Clara, CA] |
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Switched-capacitor voltage multiplier achieves 95% efficiency 10-Jun-10 Issue of
EDN A capacitor that you charge through a resistor operates at 50% efficiency;
hence, many engineers avoid using switched-capacitor dc/dc converters. That efficiency
figure holds true only for capacitors with no initial voltage, however. If you decide
to switch a precharged capacitor, you can transfer energy to an output with a
power-efficiency approaching 100%.... [Design Idea by Marián Štofka, Slovak University
of Technology, Bratislava, Slovakia] |
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Switched-gain op amp serves as phase detector or mixer 05/01/08 EDV-Design
Ideas....By switching the disable input of an op amp at a reference frequency and
lowpass-filtering its output, you can obtain a dc voltage proportional to the phase
difference…. [Design Idea by W Bruce Warren, Marietta, GA] |
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Switcher adds programmable-PWM-duty-cycle clamp - 27-Sep-07 Issue of EDN
A simple circuit adds a programmable duty-cycle clamp to an inexpensive, eight-pin PWM
power-supply controller.... [Design Idea by Michael O’Loughlin, Texas Instruments,
Nashua, NH] |
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Switcher IC hikes Battery Charger's Efficiency - 06/23/94 EDN-Design
Ideas....The adjustable switching-regulator LM2575T-ADJ, IC1, in Fig 1 replaces a
power-wasting pnp transistor in the data-book design for the NiCd battery charger IC2,
a MAX713. (Its sister device, the MAX712, handles NiMH cells.]IC2 "fast-charges" cells
by monitoring the cell's voltage and charging current until they exhibit.... EDN is
migrating links. This link is not verified. Search the "title" + "EDN" for new
link. |
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Switching Converter uses Planar Magnetics - 11/07/96 EDN-Design
Ideas....Planar-magnetics technology is growing in popularity as a design option for
dc-dc converters. In addition to providing electrical benefits, planar magnetics
offers reduced leakage inductance and improved consistency. It also significantly
reduces the cost of magnetics if you integrate it into the printed-circuit board. To
use planar magnetics in a dc-dc converter,.... [Design Idea by Andrew Cowell, Temic/Siliconix,
Santa Clara, CA] |
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Switching regulator 2 - (electronic circuit added 4/05) |
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Switching regulator forms constant-current-source - 30-May-02 Issue of EDN
Many applications require current sources rather than voltage sources. When you need a
high-current source, using a linear regulator is inadvisable, because of the high
power dissipation in the series resistor. To solve the wasted-power problem, you can
use a switch-mode regulator. The circuit of Figure 1 uses IC1, an LM2576 adjustable
regulator.... [Design Idea by Stefan Strozecki, Institute of Telecommunications,
Bydgoszcz, Poland] |
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Switching Regulator Output goes BeLow VREF - 03/17/94 EDN-Design
Ideas....The feedback arrangement of typical switching regulators doesn't allow the
regulated outputs to go lower than the reference voltage. If you try to lower the
output by modifying the feedback network, the compensation components the manufacturer
recommends may no longer stabilize the regulator's error amplifier.... EDN is
migrating links. This link is not verified. Search the "title" + "EDN" for new
link. |
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Switching regulator reduces motor brake's power consumption - 4-Jan-07 Issue
of EDN Inexpensive IC replaces relays and power resistsor.... [Design Idea by
Alain Minoz, Elekta Instrument AB, Stockholm, Sweden; Edited by Brad Thompson and Fran
Granville] |
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Switchmode Car Power Supply - Low power +/-12V supply for car preamps and
equalisers (etc) (electronic diagram added 6/07) |
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Switchmode Power Amp Supply - A high power (350W typical) car power
amplifier supply (electronic diagram added 6/07) |
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Switchmode PSU Protection - This contributed circuit can help prevent
failure of your switching power supply. (electronic diagram added 6/07) |
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Switchmode Power Supply:
#'s-A,
B-E,
F-R,
S,
T-V |
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