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.4 watt 100% Radio Shack DC-DC Converter - This DC-DC converter
("inverter") needs nothing but unmodified Radio Shack parts. You don't need
to build or wind any coils or transformers….... |
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‘Always on’ for PCs - Many enthusiasts will be using their PCs as
data loggers, controllers or as web servers. In these cases it is important
that….must register on this site.... [Published in Elecktor July/August
2010] |
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+/-5V Power Supply Operation with TC7106A/7107A TC7106A/7107A -
Microchip Application Note Published 12-Nov-02....[App Note] |
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+30V Power Supply with +5V - I made power supply which makes
about +30V with +5V power supply. Direct current is changed into
alternating current by oscillator which used schmitt trigger
inverter which has hysteresis....[Designed by Seiichi Inoue] |
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+5V Power Supply Circuit - This circuit is a small +5V power
supply, which is useful when experimenting with digital electronics. Small
inexpensive wall....[Tomi Engdahl's design] |
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+9 Volt*and* 9 Volt from One Battery! - MAX1044 is a charge pump
converter it uses a capacitor as a "bucket" to pump charge from one place to anor. It
can be used to generate negative voltage easily. (added 4/02) |
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±12V supply accepts 9 to 30V inputs - 12/04/97 EDN-Design Ideas....For
applications that require symmetric supply voltages from a wide input range, the
switch-mode supply in Figure 1 delivers more than 3.6W at �12V and operates from
inputs of 9 to 30V. Over this input range, efficiency.… [Design Idea by Ron Young,
Maxim Integrated Products, Sunnyvale, CA] |
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0 to 300 Volt Adjustable Power Supply - This is a simple circuit that can
provide an adjustable voltage source of0 to330 Volts. supply is short-circuit
proof: current is limited to about100mA. (added 6/06) |
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0.2V Supply Voltage Nanopower Inverter Circuit - Circuit Ideas for Designers
Application Notes Advanced Linear Devices, Inc....[App Note] |
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0.2V Supply Voltage Nanopower Two-Inputs NOR & NAND gates - Circuit Ideas
for Designers Application Notes Advanced Linear Devices, Inc....[App Note]
|
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0.2V Supply Voltage N-Channel Transmission Gate - Circuit Ideas for
Designers Application Notes Advanced Linear Devices, Inc....[App Note] |
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0.5v Negative Supply - Although not very efficient, this simple circuit,
consisting of two LEDs and a photo diode, generates a negative voltage with a current
level of a couple milliamps. It is ideal for supplying a negative rail to low
power “rail to rail” op amp circuits, which need to have a true zero volts output. ….
[Designed by David A. Johnson] |
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1.3V Power Supply - This is a replacement power source for 1.3V mercury
cells or other small batteries. It has many uses and I use this circuit in my computer
to power a front panel multi adapter which has a digital thermometer… [Aaron Cake's
design] |
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10 Hints for using your power supply to decrease test time - Agilent
Application Note (added 6/06) |
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10 Practical Tips You Need to Know About Power Products 5965-8239E - Learn
ten simple ways to improve your testing capabilities with your power supplies and
electronic loads. Aligent Application Note (app note added 2/06) |
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10-15w watt 100% Radio Shack DC-DC Converter - This DC-DC converter
("inverter") needs nothing but unmodified Radio Shack parts. You don't need to build
or wind any coils or transformers.….... |
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10A High Performance Point-of-Load DC/DC µModule - DN385 Design Notes
(Linear Technology) (app note added 1/06) |
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1119 Simple Regulator Provides ±12 Volt from 5 Volt Source - National
Semiconductor Application Note 31 Aug2001 (app note added 7/02) |
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12 Volt 30 Amp Power Supply (Andy Collinson) - uses a single 7812 IC voltage
regulator and multiple outboard pass transistors, this power supply can deliver output
load currents of up to30 amps.... [Circuit Design by Andy Collison] |
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12 Volt Alarm Power Supply - A 12 Volt power suppiled designed for Ron's
Modular Burglar Alarm. However, being a popular supply voltage this circuit will have
many other uses as well….(circuit / schematic design added 6/06) |
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12 Volt DC Power Supply - This is a simple low-cost 50W off-line switching
power supply, which can be used for home projects or to learn operation of flyback
converters. It can work over a universal AC line input range 90-264 VAC and provides a
12VDC output at more then 4A load. Line and load regulation is better then 0.5%.
(added 11/07) |
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12 Volt Power Supply - Please operate caution when building this power
supply. It is run on standard 117 ac current and under right circumstances 117
ac can kill you. Use a plastic enclosure if possible to decrease chances of
short-circuiting. Don't use power supply if it's wet, and never run it without
specified fuse. (added 6/06) |
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12V 30A PSU - uses a single 7812 IC voltage regulator and multiple outboard
pass transistors, this power supply can deliver output load currents of up to30 amps
(added 10/09) |
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12V to +/- 30V DC to DC Converter - This is a DC to DC converter for car
power amplifier. 12V input generates +30V and -30V output for preamp or power
amplifiers. Circuit uses SG3525 IC, Mosfets and switching power supply… |
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12V to 28V DC-DC Converter with LM2585 - This boost regulator is for those
times when you have a 28v relay, but want to use it with a 12v source. The circuit is
built around the National Semiconductor LM2585, and uses the energy stored in an
inductor to boost the 12v to 28. Output voltage can be varied by adjusting the ratio
of resistor values on the feedback pin. ….(design added 11/08) |
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12V to 9V Car Converter - Car Converter for12 Volt to 9V …. [Tony van Roon's
circuit] |
12V to 9V with a LM317 - This little circuit uses a LM317 variable voltage
regulator to adjust the input voltage down to +9 volt, or whatever else you need. Just
a solid basic circuit without bells and whistles.
You can do with a 10uF capacitor for C1 if your battery is close to this circuit. If
it is located more than 3 feet increase the value to 100uF or above…. [Tony van Roon's
circuit] |
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13.8 Volt, 20 Ampere linear power supply - A semi-traditional power supply
for communication equipment, using negative-rail regulation with grounded pass
transistors in a configuration that gives some unique advantages. [Manfred Mornhinweg] |
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15V/ 28V 4A Transmitter Power Supply - Power supply used for professional FM
broadcasting transmitter. ….(electronic schematic added 11/08) |
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1A Variable Regulated Power Supply - A 'must-have' for the experimenter.
(electronic design 05/09) [from Peter Parker's website] |
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1-transistor FM Transmitter - A truly minimalist circuit. Performance is
relatively poor and stability is a problem. Q1 modulates signal and acts as an
oscillator. L1 and C5 determine frequency. Decrease C5 for a higher frequency
and vice-versa. You won't get a long range transmission with this one....added 10/05)
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24V 12V DC DC Converter - Find out how you can use a 24V battery (bank) to
power 12V devices…. [REUK - Renewable Energy UK website] |
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2-Step Power Conversion: Portable Power for the Future - Design Solutions 8
Design Notes (Linear Technology) (app note added 1/06) |
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3 Phase Voltage Multiplier - The Cockcroft-Walton turbine voltage
multiplier…. [REUK - Renewable Energy UK website] |
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3.3V converter delivers 3W from Li-ion battery - 11/05/98 EDN-Design
Ideas....Lithium-ion batteries are rapidly gaining popularity in portable applications
because of their superior energy density, low self-discharge rate, and high cell
voltage. When you use one Li-ion battery to power a 3.... [Design Idea by David
Salerno, Unitrode Corp, Merrimack, NH] |
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3.3V Lithium Cell Supply Requires One Inductor - 08/05/99 EDN-Design
Ideas....Because of growing popularity of lithium-ion (Li-ion]batteries and 3.3V
power supplies, portable-equipment designers must often create a 3.3V supply that a
single Li-ion cell can power.... [Design Idea by Matt Schindler and Jay Scolio, Maxim
Integrated Products, Sunnyvale, CA] |
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3A Point-of-Load Power Supplies-MP1570-DN0004 - Monolithic Power Systems,
Inc Design Note (added 6/06) |
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3-Phase LTC3733 Provides High Performance Power Solutions for AMD Opteron & Athlon 64
Processors - DN326 Design Notes (Linear Technology) (app note added
1/06) |
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48kw Resonant Converter for X-Ray Machines Uses High Speed Power Modules With Integral
Liquid Cooling - This paper describes an innovative method for the removal
of heat from the four IGBT power modules equipping a 48kW ZVS-mode resonant power
converter for CT X-ray machines. Application Note Microsemi APT9904 ( app
note added 4/08) |
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5 input supply powers 3.3V Portables - 04/13/95 EDN-Design Ideas....The
single-ended primary-inductance converter in Fig 1 accepts input voltages ranging from
3 to more than 6V and produces a regulated 3.3V, 200-mA output. The converter accepts
an input voltage from three sources a 5V dc wall cube, a three-cell AA battery,
and a lithium backup battery.... [Design Idea by Len Sherman, Maxim Integrated
Products, Sunnyvale, CA] |
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5 Volt Power Supply - (electronic circuit added 9/03) |
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5 Volt Supply Derives Power from Three Wire RS232C Port - 10/26/95 EDN-Design
Ideas The circuit in Fig 1 produces a semiregulated 5V output from an RS-232C
port. Unlike a PC-mouse supply or comparable circuits that rely on the DTR and RTS
modem-control signals, this circuit operates with a three-wire port, GND, RX, and TX,
and obtains power only from the TX line. Except at high duty cycles, the TX line
(RCV-232 on the circuit side) remains.... [Design Idea by John Wettroth, Maxim
Integrated Products, Sunnyvale, CA] |
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5+ to 15- Volts DC Converter - National Semiconductor Application Note
(app note added 2/06) |
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5-to-1.8V Converter Works Without Magnetics - To derive 1.8V from 5V, you
might think of using a switch-mode regulator. Switchers are highly efficient but
require inductors. Linear regulators are simple, but would have only 40% efficiency.
This circuit is more than 70% efficient (Figure 2a), sources as much as 100 mA, and
uses no inductor....[Maxim Application Note 673] |
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5V to 3.3V Circuit Collection - DN91 Design Notes (Linear Technology)
(app note added 2/06) |
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5V to 3.3V Regulator with Fail-Safe Switchover - DN82 Design Notes
(Linear Technology) (app note added 2/06) |
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5V/1A Power Supply - ….(Circuit design added 03/08) |
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6 to 12 Volt Converter (Aaron Cake) - This circuit can provide up to 800mA
of12V power from a 6V supply. The circuit is simple, about 75% efficient and quite
useful..... |
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6 x 6 Loop Antenna - This new loop antenna is his best design yet and I am
proud to be the first to present his work. It uses one, six foot square, six turn
loop, and is aperiodic in nature, covering the frequency range 50KHz, 5000KHz....
[Design by Graham Maynard] |
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600 Volt Power Supply - simple 600 Volt DC power supply. Convert 230V AC to
300V and 600V DC..(added 6/06) |
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60-mA current-source feeds telecomm lines - 12/18/97 EDN-Design Ideas An
isolated 60-mA current source provides 120V of compliance for use in telecommunication
interfaces (Figure 1). Constant-current line feed provides dc power for downstream
circuitry independent of line length and provides inherent short-circuit protection.
The key to isolated.... [Design Idea by Kurk Mathews, Linear Technology Corp,
Milpitas, CA] |
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60V 3A Step-Down DC/DC Converter has Low Dropout & 100µA Quiescent Current -
DN352 Design Notes (Linear Technology)....[App Note] |
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60V Step-Down DC/DC Converter has Only 100µA Quiescent Current - DN1007)
Design Notes (Linear Technology) (app note added 1/06) |
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66000 Modular Power System - Agilent Application Note....[App Note]
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8 Switcher Powers High-Performance µPs - 04/13/95 EDN-Design Ideas....The
circuit in Fig 1 delivers 8A for driving as many as two of today's
high-performance, high-speed µPs. You can also optimize the design for lower current
by changing a few components. Most systems use a low-current 12V bias supply and a
poorly regulated high-current 5V to power the logic. However,.... [Design Idea by
Chester Simpson, National Semiconductor, Santa Clara, CA] |
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9 Volt 2 Amp Power Supply - A simple 9 Volt 2 amp supply using a single IC
regulator. (added 6/03) |
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9-V Stabilized Power Supply - Circuit only, no description is included….
[Tony van Roon's circuit] |
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