Duratrax dtxp4300 User Manual

• Very efficient 22kHz high frequency

switching operation – no big, heavy
transformer allows for a very

compact,

lightweight design

• Output: 7 amps continuous at 11–14V

DC

• Incredibly small at only 3.9" x 2.75"
x 2.5", and lightweight at only 7.2 oz.

• Built-in miniature cooling fan, increases
efficiency and lifespan

• Built-in thermal protection with auto-

reset

and overload protection

• Terminal block adapter with 4 foot long
extension cord for remote DC power
access. Includes pre-installed

connectors,
large color-coded terminal posts for
easy connection of external devices,
replaceable overload fuse, and
pre-fabricated pads for hard-wiring
devices directly to the p.c. board

•

Do not allow water, moisture or foreign
objects into the power supply

•

Do not cover the air intake and exhaust
holes. This will cause the power supply
to overheat.

•

Do not exceed 125V AC input

•

Do not leave the power supply
connected to AC when unused. The
internal fan functions at all times when
AC input is present.

•

Do not open or attempt to repair the
power supply at any time. Contact

Hobby

Services for any and all repair needs.

•

Keep out of reach of children.

The Compact Switching Power Supply
accepts power from a 110V AC source. Its
small size and weight make it easy to plug
directly into a wall outlet or powerstrip. A
“switching” power supply as opposed to a
linear power supply, this unit employs a
high frequency, 22kHz (22,000Hz) switch­mode design to convert 110V AC input to a

12V DC output. This state-of-the-art
technology allows the Compact Switching
Power Supply to operate entirely without a
big, heavy internal transformer and results
in a very small, compact, and lightweight
device that can deliver a tremendous
amount of power. This technology also
generates highly efficient and clean DC
output. This is especially valuable today as
many R/C battery chargers utilize peak
detection designs which are very sensitive
and demand the cleanest power sources
possible in order to maintain error-free
operation.

The Compact Switching Power Supply is
rated to provide 12V DC output at an
amazing 7 amps! Unlike many power
supplies, this unit is designed to prevent a
decrease in output current even as the
load approaches the maximum specified
levels. This helps to ensure battery
chargers have the power necessary to
fully charge batteries to the very end.
Output voltage can vary between 11–14V,
due to the fact that AC input voltage in the
U.S. has a line tolerance of +/-10%, which
can result variance in the DC output.

A terminal block adapter and 4 foot
extension cord are included for convenient
connection of external devices to the
power supply. This also allows the adapter
to be located up to 4 feet away from where
the power supply itself must access AC
input. This can be very convenient in
crowded work spaces.

Two large, metal terminals or “posts” are
mounted in the adapter. Each are clearly
marked for polarity; one terminal in red for
positive (+) DC polarity, the other terminal
in black for negative (-) DC polarity. Pre­fabricated pads are also located directly
on the adapter’s p.c. board, and are

clearly

marked as (+) for positive polarity,

and (-) for

negative polarity. External
devices can be hard-wired directly to these
pads for a permanent connection. The
adapter also includes a built-in fuse for
overload protection in the event of a short
circuit condition or current overload.

Connect the white plug on one end of the
extension cord into the receptacle on the
rear of the power supply. Plug the white
plug on the opposite end of the extension
cord into the white receptacle on the side
of the terminal block adapter. As soon as
110V AC is supplied, 12V DC will be
available at the terminals on the adapter.

WARNING: Do not allow wires or other
metal objects to accidentally make
contact simultaneously with both
terminals, as a short circuit condition
will exist. This will likely blow the fuse on

the adapter’s p.c. board, and could

possibly
damage devices which are connected
directly to the adapter. Note proper
polarities at all times when using the
terminals and pre-fabricated pads on the
p.c. board. Do not attempt to connect

batteries
directly to the output of the power supply.

Terminal posts are intended for connecting
external devices which have alligator clips (or
similar) on their input power leads. Simply
connect the black, negative (-) input clip
on the external device onto the respective
terminal on the adapter, and

the red, (+)

input clip to the opposite terminal.

Make
sure a solid physical connection is made,
to avoid intermittent power delivery to the
external device.

Pre-fabricated pads on the p.c. board are
intended for hard-wiring external devices
directly to the adapter. Trim approximately
1/8" of insulation off of the end of both
input wires of the external device. For

CONNECTING EXTERNAL

DEVICES

TERMINAL BLOCK ADAPTER &

EXTENSION CORD

DC OUTPUT POWER

AC INPUT POWER

IMPORTANT PRECAUTIONS

SPECIAL FEATURES

Congratulations on your purchase of the DuraTrax®Compact Switching Power Supply! The smallest, most lightweight power supply available, it generates an
immense amount of DC output power. Additional features such as a fuse-protected terminal block adapter with extension cord and built-in cooling fan make
the Compact Switching Power Supply the most convenient, efficient, high-tech source for power.

each bare wire, twist the strands to make
a single, tight wire. “Tin” each bare wire
with a small amount of electrical solder.
Insert each wire end into the respective
pad on the p.c. board. Apply a small
amount of solder to each connection and
briefly apply heat to flow the solder and
make permanent electrical connections.

CAUTION: This feature is

recommended
for users who are experienced in
making electrical connections with a
soldering iron. Sloppy or poor solder
connections can cause erratic

operation,
or possibly permanent damage to the
external device and/or the adapter.

WARNING: Do not connect external DC
devices in reverse polarity, as

permanent

damage to the external devices could

occur.

The Compact Switching Power Supply is
directly compatible with the IntelliPeak
brand chargers from DuraTrax (see
below). Simply connect the input cord on
any of the IntelliPeak chargers directly into
the connector on the rear of the Compact
Switching Power Supply.

DTXP4110: MINI PULSE CHARGER
DTXP4120: DELUXE PULSE

CHARGER

DTXP4130: DIGITAL PULSE CHARGER

Two other important safety features are
incorporated into the design of the
Compact Switching Power Supply:

A built-in THERMAL CUT-OFF circuit
terminates operation in the event of
excess heat build-up inside the power
supply. Also, if a short circuit or overload at
the output occurs, the unit will shut down
automatically. If any of these conditions
occur, disconnect the supply from the AC
input, wait 15 seconds while the cut-off
device automatically resets itself, and then
re-connect to the AC input.

A built-in MINIATURE COOLING FAN
provides a constant flow of air through the
power supply at all times to keep
components cool. Electronic

components
deteriorate more rapidly and perform less
efficiently when under extreme heat and
stress. Keeping components cool helps to
maintain optimum efficiency, and extend
the operational lifetime of the power
supply. Do not block the air vents on the
power supply. Make sure there is ample
room for air to enter and leave the power
supply to dissipate heat.

Input Voltage: 110V AC, 60Hz, 1.5A
Output: 12V DC, 7A
Switching Freq. 22kHz
Case Size: 5.38" x 2.25" x 4.0"
Weight: 7.2 oz. (10.3 oz. including

cord and adapter)

Part Number: DTXP4300

DuraTrax warrants this product to be free
from defects in materials and workmanship
for a period of 1 year from the date of
purchase. During that period, we will repair
or replace , at our option, any product that
does not meet these standards. You will be
required to provide proof or purchase date
(receipt or invoice).

If during the 1 year period, your DuraTrax
product shows defects caused by abuse,
misuse, or accident, it will be repaired or
replaced at our option, at a service charge
not greater than 50% of the current retail
price. Be sure to include your daytime
telephone number in case we need to
contact you about your repair.

This warranty does not cover components
worn by use, application of reverse

voltage,

cross connections, poor

installation,
subjection of components to foreign
materials, any alterations to wires, or
tampering. In no case shall our liability
exceed the original cost of the product.

Your warranty is voided if...

A. You allow any external wires to become

frayed which could cause a short

B. You tamper with any of the electronic

components.

C. You exceed maximum load

specifications

of the power supply.

D. You allow water, moisture, or any

foreign

material to enter the power supply.

E. You apply reverse voltage by

connecting

devices backwards.

Under no circumstances will the purchaser
be entitled to consequential or incidental
damages. This warranty gives you specific
legal rights, and you may also have other
rights which vary from state to state. If you
attempt to disassemble or repair this unit
yourself it may void the warranty.

For service to your DuraTrax product, either
in or out of warranty, send it post paid and
insured to:

Hobby Services

1610 Interstate Drive

Champaign, IL 61822

[phone]

e-mail: [e-mail]

Internet Address: www.duratrax.com

DuraTrax IntelliPeak™Chargers

The smart choice in value-packed peak chargers is
IntelliPeak. They give modelers high-tech features
and versatility – without the high-tech price tag. All
four IntelliPeak models include:

•

Ability to charge NiCd and NiMH packs

•

Adjustable pulsed current

•

Cycling functions (single cycle: periodic

conditioning
of regularly used batteries, and auto-repeat cycle:
for deep conditioning of new or unused batteries.

•

Four multi-function LEDs and audible tones to
ease setup

•

CPU driven

•

Able to charge transmitter batteries, too

Pulse Charger –
DTXP4100

•

AC/DC input

•

1 amp discharge rate

•

Great for racers and
sport modelers alike

Mini Pulse Charger –
DTXP4110

•

Builds on the Pulse
Charger’s features
with

DC input, with
detachable AC power
supply...charger itself is
very small, great for
portability

•

2 amp discharge rate

•

1 built-in cooling fan

Deluxe Pulse
Charger – DTXP4120

•

Adds to the Mini Pulse
Charger’s features

with
DC input, detachable
AC power supply.

•

2 and 10 amp discharge
rate (faster discharge
ability).

•

Negative DeltaV (for
NiCds) and Zero
DeltaV (for NiMHs)
peak technologies,
auto-selects

•

High rate charging for high-capacity NiMH packs.

•

2 built-in cooling fans

Digital Pulse Charger
– DTXP4130

•

Includes all of the
Deluxe model’s

features,
plus LCD readout that
shows battery voltage,
charge current, and
charge and discharge
capacity in mAh.

OTHER ITEMS AVAILABLE

FROM DURATRAX

WARRANTY

SPECIFICATIONS

SAFETY FEATURES

DTXZ4300 for DTXP4300