work voltage: AC115V or AC230V for choose
Front panel: Black or Silver for choose
Output voltage: DC12V 6A
Dimensions: 210mm Width X 70mm high X 257mm deep
DC Head Size: Outer diameter 5.5mm, internal diameter 2.5mm ( compatible with 5.5*2.1mm socket. or if you need other size plug. Please contact us.)
Power Polarity: inner"+" external"-"
Main materials:
1: 100VA oxygen-free copper R-type transformer
2: Nichicon 10000uf/50V main filter capacitor
3: Built-in EMI filter board
4: All aluminum chassis
Package include: Finished DC5V 6A linear Power supply X 1
1.2M Teflon silver wire output DC cable X 1 (5.5*2.1mm)
Default is not include the AC input cable.
if you need other voltage and Current, we can accept custom-make.
Technical highlights
All-discrete topology.
Single-pass, series regulator design.
No
IC (integrated circuits) are used. This allows complete design control
over all operating points and parameters for superior performance.
Low noise, high PSRR
A
constant-current source feeds a zener diode as a stable voltage
reference. A low-pass filter (with a corner frequency of 1.6Hz) prevents
zener noise from being introduced into the error amplifier. This is an
effective yet lower-cost alternative to expensive voltage reference ICs.
The low-pass filter also provides a soft-start characteristic.
The
output noise (unloaded) is less than 13µV at 24VDC output (measured
using a Tangent LNMP (low-noise measurement preamplifier) and a Fluke
187 50000-count DMM in ACmV mode). The output noise is even less when
the output voltage is lower. This is much better than the noise of an IC
regulator based PSU tested under identical conditions.
The error
amplifier is a discrete implementation of an opamp with a high open-loop
gain of 102.5dB. The voltage supply to the error amplifier is isolated
with capacitance multipliers to boost its PSRR (power supply rejection
ratio). This greatly improves the line regulation performance of the
PSU.
A long-tailed pair differential amplifier with current mirror
and constant current source forms the first stage of the error
amplifier. The second stage is the voltage amplification stage (VAS),
also with constant current source load. The 3rd stage is comprised of
the power MOSFET output devices configured as a source follower.
High-current MOSFET pass transistors
Two paralleled high-current, highly reliable MOSFETs (rated at 18A each) serve as the "pass" transistor.
The high current rating provides a very high safety headroom against overcurrent damage.
The
use of paralleled MOSFETs divides the heat dissipation, simplifying
thermal management. Onboard heatsinks can be used which would allow the
this PSU to supply up to 1A continuous (with much higher peak currents).
More sustained currents are possible by using larger, offboard
heatsinks.
The negative temperature coefficient of MOSFETs prevents
damaging thermal-runaway conditions that may plague conventional BJT
devices.
Shipping time:
Default send by airmail,about 8-12 business days can arrive most of europe countries, Russia, Brazil,Africa.Ukraine and some other remote countries will need some more days.
Payment:
We ONLY accept PayPal. Payment must be made within 3 days of the auction end time. Non-Paying bidders will be reported.
All items will be shipped within 1-3 business days (from china)upon receipt of payment.
We ONLY send item to buyer's registered Paypal address,Buyer must be responsible for their postal address
Customs
& duties:For cross-border transactions,.we are not responsible for
tariffs and duties. However, buyers may be responsible for actual,
applicable tariffs, and duties as requested by respective country laws
Return & Exchange:
>> Some items return is accepted within 7 days after the buyer's receiving the item.(please see the detail describe)[In case of DOA (Dead on Arrival), please report within 3 days]
>> Returned item has to be new, unworn and in its original condition.
>>
After getting the returned item, we will refund the customer at the
item's price ( excluding the shipping costs to and from )