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12 to 120 Volt Inverter - Ever needed a low power 120volt AC power
source for your car, van or truck? Well this circuit should do the trick for you.
It will supply 15 watts of AC power to a device. It should power lamps, shavers,
small stereos and small appliances. If you draw to much power the circuit will
shut down all by itself. The output of this circuit is a square wave ….(design
added 08/08) |
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12 VDC: 120 VAC Inverter Schematic - This Inverter takes 12 volt d.c
and steps it up to 120 volt a.c. The wattage depends on which transistors
you use for Q1 and Q2, as well as the "Amp Rating" of the transformer you use for
T1. This inverter can be constructed to supply anywhere from 1 to 1000 (1
KW) watts.... (added 4/05) |
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12 Volt 20 Amp Power Supply - A 12 Volt high current 20 Amp power
supply. The output voltage is variable from 12.2 Volt to 14.4V so can be set for
any device requiring voltage and current in that range. This PSU uses an
LM723 as the regulator, 4 parallel connected outboard pass transistors and has
current limiting above 25 amps.... [Circuit Design by Andy Collison] |
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12 Volt DC to 120 Volt AC Inverter (Aaron Cake) - This Inverter takes 12
volt d.c and steps it up to 120 volt a.c. The wattage depends on which
transistors you use for Q1 and Q2, as well as the "Amp Rating" of the transformer
you use for T1. This inverter can be constructed to supply anywhere from 1
to 1000 (1 KW) watts.... (added 4/05) |
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12 Volt to 120 Volt Inverter (randy Linscott) - Ever needed a low power
120volt AC power source for your car, van or truck? Well this circuit should
do the trick for you. It will supply 15 watts of AC power to a device. It should
power lamps, shavers, small stereos and small appliances. If you draw to much
power …. [Randy Linscott, designer] |
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12VDC he-ne laser supply - Schematic only, no circuit description
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12VDC To 120VAC Inverter - Have you ever wanted to run a TV, stereo or
other appliance while on the road or camping? Well, this inverter should solve
that problem. It takes 12 VDC and steps it up to 120 VAC. The wattage depends on
which tansistors you use for Q1 and Q2, as well as how "big" a transformer you use
for T1. The inverter can be constructed to supply anywhere from 1 to 1000 (1 KW)
watts....(circuit added 02/09) |
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2 Amp Power Supply - This handy power supply has an output of 0v to 12v
at 700mA with a transformer that is rated at 1-amp (such as M-2155) or 1.4amp for
a transformer that is rated at 2-amp (such as M-2156). Your local electronics shop
or model railway supply will have these....(Added 05/09) |
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300ma DC-to-AC Converter - This circuit was used to provide battery
backup to a device that had an AC (output) wall transformer. Due to
quasi-sine-wave output and imprecise 60Hz output frequency, some devices might not
work properly. Peak output is DC input voltage minus about 20 ohms drop. Use
bigger output MOSFETS for more current output. Designed by Andrew R. Morris
(added 09/05) |
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40A Power Supply Unit - Capable of running at full power at 100% duty
cycle. ….(design added 11/08) |
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500W low cost 12V to 220V inverter - Using this circuit you can convert
the 12V dc in to the 220V Ac. In this circuit 4047 is use to generate the square
wave of 50hz and amplify the current and then amplify the voltage by using the
step transformer…..(Circuit design added 09/08) |
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555 DC-AC Inverter - This DC-to-AC inverter schematic produces an AC
output at line frequency and voltage. The 555 is configured as a low-frequency
oscillator, tunable over the frequency range of 50 to 60 Hz by Frequency
potentiometer R4. The 555 feeds its output (amplified by Q1 and Q2) to the
input of transformer T1, a reverse-connected filament... [Tony van Roon's circuit] |
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6v to 12v Converter - This inverter circuit can provide up to 800mA of
12V power from a 6V supply. For example, you could run 12V car accessories in a 6V
(British?) car. The circuit is simple, about 75% efficient and quite useful. By
changing just a few components, you can also modify it for different voltages....
[Circuit designed by Aaron Cake] |
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A very simple inverter - You can use this to light up fluorescent tubes
from a DC source. Excellent way to recycle your dead fluorescent bulbs and energy
saver lamps. Contents: Schematics, diagrams, PCBs, and photos.….(electronic
schematic added 08/08) |
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AN14 Transistor Considerations for LCD Backlighting - Zetec
Semiconductors Applications Notes A study of parametric requirements
of Bipolar transistors for self-oscillating resonant "Royer" inverter with
respect to LCD backlighting, including circuit behaviour, voltage ratings of
most relevance to ensure optimised device selection, and compact packaging options
(app note added 9/06) |
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AN17 Emergency Lighting Systems & Battery Powered Fluorescent Lighting: High
Current To92 Switching Transistors Provide 87% DC-AC Conversion Efficiency -
Zetec Semiconductors Applications Notes An overview of principles
behind typical emergency lighting systems, fluorescent tube behaviour, and
requirements of transistors for efficient voltage inversion. The note also
includes two "Royer" based designs for low voltage systems. (app note
added 6/06) |
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AN-237: Choosing DACs for Direct Digital Synthesis - AN-237 Analog
Devices Application Notes (app note added 6/06) |
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AN-327: DAC ICs: How Many Bits Is Enough? - AN-327 Analog Devices
Application Notes (app note added 6/06) Digital audio playback DACs
are available in a variety of different architectures--each with it's own
performance tradeoffs. |