AIM & THURLBY THANDAR INSTRUMENTS
QPX1200S & QPX1200SP
1200 watt dc power supplies with PowerFlex regulation
Variable voltage/current combinations over a wide range
Up to 60 volts and up to 50 amps within a power envelope
Linear final regulation provides very low output ripple & noise
Analog, RS-232, USB, GPIB & LAN interfaces (model dependent)
aimtti.com
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aimtti.co.uk aimtti.usQPX1200S - 1200 watt dc power supply with PowerFlex 60V, 50A max.
PowerFlex design with 1200 watts maximum power
60V
PowerFlex Wide range of voltage/current combinations
50V
Up to 60V and up to 50A within a power envelope
Power Envelope
(1200W max.)
Linear final regulation provides very low output noise
40V
and fast transient reponse
Setting by direct numeric entry or by spin wheel
30V
High setting resolution of 1mV in up to 60 volts
20V Multiple non-volatile setting memories
Variable OVP and OCP trips
10V
Low resistance and power calculation
Analog control interfaces for voltage and current
0V
0A 10A 20A 30A 40A 50A
Bench or rack mounting with front and rear terminals
GPIB, RS-232, USB & LAN (LXI) interfaces (QPX1200SP)
The QPX1200S is a laboratory dc power supply with a maximum total output
power of 1200 watts and is suited to both bench-top and system applications.
The QPX1200SP adds full digital remote control using USB, RS-232, LAN and
Power calculation
GPIB interfaces. Both models include analog remote control.
The meter for each output can be set to show the total power currently being
PowerFlex
provided to the load (V x A) to a resolution of 0.1 watts.
The QPX1200S is a different type of laboratory power supply designed to meet The power is shown in addition to the voltage and current values.
the need for flexibility in the choice of voltage and current.
Low resistance calculation
A conventional PSU has a fixed current limit giving a power capability that
The meter for each output can
reduces directly with the output voltage.
be set to show the equivalent
The TTi PowerFlex design of the QPX1200S enables higher currents to be
resistance of the load by
generated at lower voltages within an overall power limit envelope. Each
displaying voltage divided by
output can provide three times the current of a conventional PSU of the same
current.
maximum voltage and power (see power curve).
Low resistance measurements
Example voltage/current combinations include 60V/20A, 48V/25A, 37.5V/30A,
using a DMM utilise a low excitation current and suffer from thermal emf
26V/40A, and 20V/50A.
errors and other low voltage effects.
The PowerFlex regulator includes a linear output stage giving the QPX1200S
This function enables low resistance measurements to be made at high
exceptionally low output noise for a unit of this power, and ensuring good
currents by using the remote sense terminals to create a four terminal
transient response
connection. This can give much more reliable results for certain component
Bench or rack mounting types, such as magnetics, which operate at ampere levels.
The QPX1200S is housed in a 350mm (13) wide case suitable for use on the
bench-top. Output and remote sense terminals are mounted both on the front
and on the rear panel along with the analog and logic interface connectors
and, on the QPX1200SP, the bus interface connectors.
The power supply is 3U high and a rack mounting kit (RM310 or RM310A) is
available as an option.