From: "Saved by Internet Explorer 11" Subject: Index 24 - power supply circuit - Circuit Diagram - SeekIC.com Date: Fri, 12 Feb 2016 12:14:40 -0800 MIME-Version: 1.0 Content-Type: multipart/related; type="text/html"; boundary="----=_NextPart_000_0000_01D1658E.F301FC10" X-MimeOLE: Produced By Microsoft MimeOLE V6.1.7601.17609 This is a multi-part message in MIME format. ------=_NextPart_000_0000_01D1658E.F301FC10 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Location: http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/index24.html =EF=BB=BF
Published:2013-3-22 1:59:00 Author:Ecco | Keyword: Xbox 360, Power = Supply
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Xbox 360 Power Supply by Intec"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332215855321.jpg">=
In=20
the market there is an Xbox 360 power supply made =E2=80=8B=E2=80=8Bby =
Intec, which is designed=20
specifically for use suited with the Xbox 360. Novelty has several =
features that=20
are not available on the normal network Xbox 360 adapter. In particular, =
the=20
device has a built-in cooler that promises to reduce the operating =
temperature=20
of the platform, three LED-indicator, informing you of the state =
apparatus, and=20
the half-meter cable. Connected device is simple and requires no =
additional=20
configuration. Xbox 360 Power Supply from INTEC sold in the market not =
more than=20
U.S. $ 100 and comes with no wires connected to the outlet. (View)
View full Circuit Diagram | Comments | Reading(585)
Published:2013-3-21 4:15:00 Author:Ecco | Keyword: Car charger , Nicd = Battery=20 Packs
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Car charger for Nicd Battery Packs"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s20133214152959.jpg"> =
The=20
Car charger for Nicd Battery Packs circuit is very suitable for portable =
charger, with a few components, allows you to build them in a small =
case. The=20
number of silicon diodes across the Car charger output is determined by =
the=20
voltage of the battery pack.Figure each diode at 0.7 volt. For example, =
a 10.9-=20
volt pack would require 10.9/0.7 =3D 15.57, or 16 diodes. (View)
View full Circuit Diagram | Comments | Reading(371)
Published:2013-3-21 4:02:00 Author:Ecco | Keyword: Nicd Charger , = LEDs ,=20 Constant Current
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Nicd Charger Uses LEDs Constant Current"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s20133214225303.jpg"> =
This=20
Nicd charger circuit diagram is another simple NiCd battery charger, and =
I think=20
its very interesting because uses LEDs to adjust the charging current. =
As=20
mentioned above, this Nicd charger circuit uses constant current LEDs to =
adjust=20
charging current. It makes use of LEDs that pass a constant current of =
about 15=20
-mA for an applied voltage range of 2-18 V.They can be paralleled to =
give any=20
multiple of 15 mA and they light up when current is flowing. The circuit =
will=20
charge a single cell at 15, 30 .or 45 mA or cells in series up to the =
rated=20
supply voltage limit (about 14 V). (View)
View full Circuit Diagram | Comments | Reading(530)
Published:2013-3-21 4:00:00 Author:Ecco | Keyword: 5V to 15V, Power = Supply ,=20 IC Regulator
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"5V to 15V Power Supply using 7805 IC Regulator"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s20133214035617.jpg"> =
This=20
power supply based 7805 IC regulator, it can provides a regulated output =
voltage=20
of between 5 V to 15 VDC, it is adjusted and set by a preset resistor. =
Maximum=20
output current range of this power supply is 350 mA, its enough to =
supply=20
powered calculator, radio, or cassete player. An integrated circuit =
regulates=20
the output voltage and although this 7805 IC is generally applied to a=20
fixed-voltage of 5 Vdc supply it is for a variable output voltage. =
(View)
View full Circuit Diagram | Comments | Reading(418)
Published:2013-3-21 3:55:00 Author:Ecco | Keyword: high voltage = regulator
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Precision high voltage regulator"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332135522329.jpg">=
This=20
is precision high voltage regulator circuit diagram based 3 terminal =
adjustable=20
regulator LM317L IC.The circuit require input voltage Vin =E2=89=A5 178V =
and can provide=20
output voltage ( V out) between 8 V to 160 V @ 25 mA current output. =
(View)
View full Circuit Diagram | Comments | Reading(0)
Published:2013-3-21 3:50:00 Author:Ecco | Keyword: Simple Split Rail, = Power=20 Supply
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Simple Split Rail Power Supply based LM380"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332134951335.jpg">=
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Simple Split Rail Power Supply based LM380"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332135023782.jpg">=
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Simple Split Rail Power Supply based LM380"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332135031809.jpg">=
This=20
split power supply circuit uses the of the popular LM380 audio power =
amplifier=20
chip. The device is internally biased so that without having any input =
the=20
output is held midway between the supply rails. R1, that will be =
initially set=20
to mid-travel, is used to nullify any inbalance in the output. =
Regulation of=20
Vout depends upon the circuit feeding the LM380, but negative and =
positive=20
outputs will track accurately irrespective of input regulation and =
unbalanced=20
loads. The free air dissipation slightly more than 1 watt, and so will =
require=20
extra cooling. The device is fully protected and will shut-down if its =
rated=20
dissipation is exceeded. Current limiting occurs when the output current =
is=20
higher than 1.3 A. The split power supply input voltage should never =
exceed 20=20
V. (View)
View full Circuit Diagram | Comments | Reading(942)
Published:2013-3-20 1:57:00 Author:Ecco | Keyword: Fast Response, = Power=20 Supply Protection
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Fast Response Power Supply Protection"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s20133201579128.jpg"> =
This=20
Fast response power supply protection circuit is used to protect =
regulated power=20
supply from the risks of undervoltage and overvoltage condition. When =
working=20
with a regulated power supply to reduce a supply voltage, =
there=E2=80=99s always the=20
risk that component failure in the power supply may cause a severe =
overvoltage=20
condition through the load. To deal with overvoltage conditions, the =
Fast=20
response power supply protection circuit is designed to protect the load =
underovervoltage conditions. Component values given are for a 20 V =
supply with=20
regulated output at 12V. The zener diode can be changed-according to any =
voltage=20
is to be the maximum. When the voltage at the regulator output goes up =
to 13 V=20
or higher, the zener diode breaks down-and triggers-the thyristor which =
will=20
shorts out the supply line and blows the main fuse. (View)
View full Circuit Diagram | Comments | Reading(445)
Published:2013-3-20 1:54:00 Author:Ecco | Keyword: Variable Power = Supply ,=20 Adjustable Current Limit
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Variable Power Supply with Adjustable Current Limit"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s20133201547566.jpg"> =
This=20
circuit variable power supply with adjustable current limit using three =
terminal=20
adjustable regulator LM117 which is used to regulate current and the =
voltage=20
limits. Variable power supply input range is between 32 V to 40 VDC and =
can=20
provide outputs up to 25 VDC and provide currents up to 1.2 A Dioda D2 =
and D3=20
and Q2 are added to allow adjustment of output voltage to 0 volts. D1 =
protect=20
both LM117 during an input short circuit (View)
View full Circuit Diagram | Comments | Reading(1163)
Published:2013-3-20 1:53:00 Author:Ecco | Keyword: Lead Acid, Battery = Charger=20 , Current Limit
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Lead Acid Battery Charger with Current Limit"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332015312252.jpg">=
The=20
Lead Acid battery charger is based at charging voltage 2.4 V per cell, =
according=20
to many manufacturers recommendations=E2=80=99. Pulse circuit the =
battery under charge=20
with 14.4 V (6 CEUs x2.4 V per cell) at 120 Hz. This Lead Acid battery =
charger=20
design provides current limiting to protect the internal components =
battery=20
charger circuit while limiting the charging rate to prevent severe =
damage to=20
discharged lead-acid batteries. The recommended maximum charging time is =
typically about a quarter of the value of ampere-hour battery. For =
example, the=20
maximum battery charging current to an average of 44 ampere-hour is 11 =
A. If the=20
impedance of the load requires a larger charging current of 11 A current =
limit,=20
the circuit will go into current limit. The amplitude of the charging =
pulse is=20
controlled to maintain maximum peak charging current of 11 A (8 on =
average A).=20
(View)=
P>
View full Circuit Diagram | Comments | Reading(1300)
Published:2013-3-20 1:52:00 Author:Ecco | Keyword: Adjustable , = Output=20 Regulator , Op-Amp
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Adjustable Output Regulator with Op-Amp"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332015213706.jpg">=
With=20
adjustable voltage regulator the circuit voltage can be obtained varies =
from 7=20
to 20 VDC. This circuit requires a voltage input> =3D 20VDC Circuit =
NotesThe=20
addition of an op amp MC1741 allows adjustment to higher or intermediate =
values=20
while retaining regulation characteristics. The minimum voltage =
obtainable with=20
this arrangement is 2.0 volts higher than the regulator voltage. =
(View)
View full Circuit Diagram | Comments | Reading(538)
Published:2013-3-20 1:51:00 Author:Ecco | Keyword: Universal , Power = Supply=20 Module , 3V-30V
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Universal Power Supply Module 3V-30V"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332015124587.jpg">=
This=20
universal power supply circuit provides a variable voltage between 3-30 =
V. The=20
power supply provides maximum current 1.5 A and with a few modifications =
and=20
additions to modules can provide a higher current. Adjustable regulator =
LM317=20
(U1) offers short-circuit protection and automatic current limiting at =
1.5A. The=20
input voltage to the regulator is supplied by DB1, a 4 A 100 PIV =
full-wave=20
bridge rectifier. Capacitor C1 gives initial filtering. U1 provides =
extra=20
electronic filtering included in the regulating function. The output =
level of=20
the regulator is set by trim-pot R1. To prevent high-frequency =
oscillation=20
Bypass capacitor added to the input and output of U1 . The current =
output of the=20
transformer should be no less than 1.8 times the rated continuous-duty =
output of=20
the supply. Which means that a 1.5-A supply should apply a 2.7-A =
transformer.=20
For light or intermittent loads, a smaller 2.0-A transformer should be =
enough.=20
Wiring a 2nd Adjustable regulator LM317, U2, in parallel with U1 can be =
a quick=20
and clean method to increase the current limiting threshold of the =
universal=20
power supply to 3 A without having to sacrifice short-circuit =
protection. When=20
more than 3 A is needed, the regulator module may be used to drive the =
base of=20
one or more pass-transistors (see Fig. B). (View)
View full Circuit Diagram | Comments | Reading(561)
Published:2013-3-20 1:50:00 Author:Ecco | Keyword: Current Source,=20 Regulator
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Current Source / Regulator"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332015013167.jpg">=
The=20
Current Source/Regulator circuit powers the load through the =
regulator=E2=80=99s input=20
rather than its output. Since the regulator=E2=80=99s output sees =
constant dummy load=20
R1, it attempts to consume a constant amount of current, regardless of =
what the=20
voltage across the actual load really is. Therefore, the =
regulator=E2=80=99s input works=20
as a constant current source for the actual load. Thecurrent source =
circuit need=20
power supply with any of the commonly available =C2=B1 15 or =C2=B1 12V =
. The voltage=20
dropped over the regulator and dummy load lowered the total compliance =
voltage=20
of the Current Source/ Regulator circuit. You set the load=E2=80=99s =
current with R1.=20
The current equals 1.25 AAA x R. (View)
View full Circuit Diagram | Comments | Reading(344)
Published:2013-3-20 1:39:00 Author:Ecco | Keyword: Low Power, 5V , = Switching=20 Regulator
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Low Power 5V Switching Regulator"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332013930139.jpg">=
This=20
simple switching regulator circuit have 5 V output, the input provide by =
a 9 V=20
battery. Ithaving 80% efficiency and 50mA output capability. How simple=20
switching Regulator works:While Q1 is actually on, its collector voltage =
increases, delivering current through the inductor. The output voltage =
goes up,=20
triggering A1=E2=80=B2s(precision op amp LT1013) output to rise. Q1 cuts =
off as well as=20
the output decays through the load. The 100pF capacitor would ensure =
clean=20
switching. The cycle repeats when the output falls low enough for A1 to =
turn on=20
Transistor Q1. The 1=C2=B5F capacitor ensures low battery impedance at =
high=20
frequencies, preventing sag during switching. (View)
View full Circuit Diagram | Comments | Reading(276)
Published:2013-3-20 1:38:00 Author:Ecco | Keyword: Power Supply = Splitter, 9V=20 to =C2=B1 5V
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Power Supply Splitter 9V to =C2=B1 5V"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332013839857.jpg">=
This=20
power supply splitter circuit can divide the voltage of =C2=B1 5V only =
from a 9V=20
battery. This circuit consists of three ICs. The first is IC ICL7660, =
these are=20
monolithic, CMOS switched-capacitor voltage converters that invert, =
double,=20
divide, or multiply a positive input voltage. Next is ICL7663 IC a =
positive=20
voltage regulator. And the last ICL7664 for negative voltage regulator. =
The=20
oscillation frequency of the ICL7660 will be reduced with the external=20
oscillator capacitor, so that it inverts the battery voltage more =
efficiently.=20
(View)
View full Circuit Diagram | Comments | Reading(787)
Published:2013-3-20 1:37:00 Author:Ecco | Keyword: Dual polarity, 15V = power=20 supply
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Dual polarity 15V power supply"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332013746283.jpg">=
This=20
simple split / dual polarity unregulated power supply circuit provides a =
+15=20
Volt and -15 Volt supply from a single transformer winding and one =
full-wave=20
bridge. A couple of zener diodes in series give you the voltage division =
and=20
their centerpoint is grounded. (The filter capacitor should not be =
seated=20
through its case). Since this power supply is unregulated type, so it =
will not=20
recommended for high quality audio system. (View)
View full Circuit Diagram | Comments | Reading(500)
Published:2013-3-20 1:35:00 Author:Ecco | Keyword: 12V battery = charger , 20 A=20 rms
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"12V battery charger Max : 20 A rms"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332013458473.jpg">=
This=20
12V battery charger circuitcan charge12 voltbatteries =
withmaximumcurrent20 Arms.=20
(View)
View full Circuit Diagram | Comments | Reading(506)
Published:2013-3-20 1:34:00 Author:Ecco | Keyword: Electronic crowbar = , AC=20 and DC lines
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Electronic crowbar for AC and DC lines"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332013412749.jpg">=
For=20
positive protection of electrical or electronic equipment, use this =
against=20
excessive supply voltage. Because of incorrect switching, electrical =
wiring,=20
short circuits, or failure of regulators, an electronic crow-bar circuit =
can=20
quickly place a short circuit through the power lines, thereby =
decreasing the=20
voltage across the protected device to close to zero and blowing a fuse. =
The=20
triac and SBS both are bilateral components, the circuit will be equally =
useful=20
on alternating current or direct current supply lines. Using the values =
shown=20
for R1, R2, and R3, the crow-bar operating stage can be altered over the =
range=20
of 60 to 120 volts dc or 42 to 84 volts ac. The resistor values may be =
changed=20
to cover a different range of supply voltages. The voltage rating of the =
triac=20
should be greater than the highest operating-point as set by R2. I1 is a =
low=20
power incandescent bulb with a voltage rating similar to the supply =
voltage. It=20
may be used to check the set point and operation of the unit by opening =
the test=20
switch and adjusting the input or set point to fire the SBS. (View)
View full Circuit Diagram | Comments | Reading(476)
Published:2013-3-20 1:32:00 Author:Ecco | Keyword: Constant Voltage, = Current=20 Limited , Charger
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Constant Voltage Current Limited Charger"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s20133201328817.jpg"> =
This=20
12v lead acid battery charger circuit based Regulator IC LM723C. The =
lead acid=20
battery charger circuit can provide 12 V output voltage at 0.42 A =
maximum=20
current. This battery charger circuit is design for 12 V Lead Acid =
battery.=20
(View)
View full Circuit Diagram | Comments | Reading(617)
Published:2013-3-20 1:31:00 Author:Ecco | Keyword: Thermally = Controlled ,=20 Nicad Charger
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Thermally Controlled Nicad Charger"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332013114577.jpg">=
One=20
method to charge Nikel Cadmium (NiCad) batteries quickly with out abuse =
is=20
generally to measure battery cell temperature and taper the charge =
accordingly.=20
This nicad charger circuit works with a thermocouple for this function. =
Another=20
thermocouple nulls out the effects of ambient temperature. The =
temperature=20
difference between both thermocouples can determine the voltage, which =
will=20
appears at the amplifier=E2=80=99s positive input. Since battery =
temperature rises, this=20
small negative voltage (1 =C2=B0C difference between the thermocouples =
equals 40 =C2=B5V)=20
gets larger. The amplifier, working at a gain of 4300, gradually reduces =
the=20
current over the nicad battery to keep its inputs at balance. The nicad =
battery=20
charges at a high rate until heating occurs and the circuit then tapers =
the=20
charge. The values given in the circuit limit the battery-surface =
temperature=20
rise over ambient to about 5=C2=B0C. (View)
View full Circuit Diagram | Comments | Reading(265)
Published:2013-3-20 1:30:00 Author:Ecco | Keyword: Nicad Battery = Zapper
460){this.height=3Dthis.height*460/this.width;thi=
s.width=3D460;}"=20
alt=3D"Nicad Battery Zapper"=20
src=3D"http://www.seekic.com/uploadfile/ic-circuit/s201332013020877.jpg">=
This=20
Nicad Battery zapper circuit clears internal shorts in nickel-cadmium =
batteries=20
by burning them away. (View)
View full Circuit Diagram | Comments | Reading(455)
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