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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. |
|
±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] |
|
+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] |
|
+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] |
|
+/-5V Power Supply Operation with TC7106A/7107A TC7106A/7107A
- Microchip Application Note Published 12-Nov-02....[App Note]
|
|
‘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] |
|
.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….... |
|
0.2V Supply Voltage Nanopower Inverter Circuit - Circuit
Ideas for Designers Application Notes Advanced Linear Devices,
Inc....[App Note] |
|
0.2V Supply Voltage Nanopower Two-Inputs NOR & NAND gates -
Circuit Ideas for Designers Application Notes Advanced Linear
Devices, Inc....[App Note] |
|
0.2V Supply Voltage N-Channel Transmission Gate - Circuit
Ideas for Designers Application Notes Advanced Linear Devices,
Inc....[App Note] |
|
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] |
|
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] |
|
10 Hints for using your power supply to decrease test time
- Agilent Application Note |
|
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 |
|
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.….... |
|
10A High Performance Point-of-Load DC/DC µModule - DN385
Design Notes (Linear Technology) |
|
1119 Simple Regulator Provides ±12 Volt from 5 Volt Source
- National Semiconductor Application Note 31 Aug2001 |
|
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] |
|
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. |
|
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%. |
|
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. |
|
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 |
|
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… |
|
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. |
|
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] |
|
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] |
|
15V/ 28V 4A Transmitter Power Supply - Power supply used
for professional FM broadcasting transmitter. |
|
1A Variable Regulated Power Supply - A 'must-have' for the
experimenter. (electronic design 05/09) [from Peter Parker's
website] |
|
24V 12V DC DC Converter - Find out how you can use a 24V
battery (bank) to power 12V devices…. [REUK - Renewable Energy
UK website] |
|
2-Step Power Conversion: Portable Power for the Future -
Design Solutions 8 Design Notes (Linear Technology) |
|
3 Phase Voltage Multiplier - The Cockcroft-Walton turbine
voltage multiplier…. [REUK - Renewable Energy UK website] |
|
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] |
|
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] |
|
3A Point-of-Load Power Supplies-MP1570-DN0004 - Monolithic
Power Systems, Inc Design Note |
|
3-Phase LTC3733 Provides High Performance Power Solutions for
AMD Opteron & Athlon 64 Processors - DN326 Design Notes
(Linear Technology) |
|
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
|
|
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] |
|
5 Volt Power Supply |
|
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] |
|
5+ to 15- Volts DC Converter - National Semiconductor
Application Note |
|
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]
|
|
5V to 3.3V Circuit Collection - DN91 Design Notes (Linear
Technology) |
|
5V to 3.3V Regulator with Fail-Safe Switchover - DN82
Design Notes (Linear Technology) |
|
5V/1A Power Supply |
|
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..... |
|
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] |
|
600 Volt Power Supply - simple 600 Volt DC power supply.
Convert 230V AC to 300V and 600V DC. |
|
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] |
|
60V 3A Step-Down DC/DC Converter has Low Dropout & 100µA
Quiescent Current - DN352 Design Notes (Linear
Technology)....[App Note] |
|
60V Step-Down DC/DC Converter has Only 100µA Quiescent Current
- DN1007) Design Notes (Linear Technology) |
|
66000 Modular Power System - Agilent Application
Note....[App Note] |
|
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] |
|
9 Volt 2 Amp Power Supply - A simple 9 Volt 2 amp supply
using a single IC regulator. |
|
9-V Stabilized Power Supply - Circuit only, no description
is included…. [Tony van Roon's circuit] |
