QPX1200SP AIM-TTI INSTRUMENTS, QPX1200SP Datasheet - Page 2

• Manufacturer Part Number: QPX1200SP
• Description: PSU, 1.2KW WITH LXI 60V 50A MAX
• Manufacturer: AIM-TTI INSTRUMENTS

Specifications of QPX1200SP

• Power Supply Output Type: Variable
• No. Of Output Channels: 1
• Output Voltage: 60V
• Output Current: 50A
• Power Rating: 1.2kW
• Input Voltage: 110VAC To 240VAC
• Supply Voltage Typ: 110VAC / 230VAC
• Load: RoHS Compliant
• No. Of Outputs: 1
• Rohs Compliant: NA

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
GPIB interfaces. Both models include analog remote control.
PowerFlex
The QPX1200S is a different type of laboratory power supply designed to meet
the need for flexibility in the choice of voltage and current.
A conventional PSU has a fixed current limit giving a power capability that
reduces directly with the output voltage.
The TTi PowerFlex design of the QPX1200S enables higher currents to be
generated at lower voltages within an overall power limit envelope. Each
output can provide three times the current of a conventional PSU of the same
maximum voltage and power (see power curve).
Example voltage/current combinations include 60V/20A, 48V/25A, 37.5V/30A,
26V/40A, and 20V/50A.
The PowerFlex regulator includes a linear output stage giving the QPX1200S
exceptionally low output noise for a unit of this power, and ensuring good
transient response
Bench or rack mounting
The QPX1200S is housed in a 350mm (13¾”) 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.
QPX1200S - 1200 watt dc power supply with PowerFlex
60V
50V
40V
30V
20V
10V
0V
0A
10A
20A
PowerFlex
Power Envelope
30A
(1200W max.)
40A
50A












Power calculation
The meter for each output can be set to show the total power currently being
provided to the load (V x A) to a resolution of 0.1 watts.
The power is shown in addition to the voltage and current values.
Low resistance calculation
The meter for each output can
be set to show the equivalent
resistance of the load by
displaying voltage divided by
current.
Low resistance measurements
using a DMM utilise a low excitation current and suffer from thermal emf
errors and other low voltage effects.
This function enables low resistance measurements to be made at high
currents by using the remote sense terminals to create a four terminal
connection. This can give much more reliable results for certain component
types, such as magnetics, which operate at ampere levels.
PowerFlex design with 1200 watts maximum power
Wide range of voltage/current combinations
Up to 60V and up to 50A within a power envelope
Linear final regulation provides very low output noise
and fast transient reponse
Setting by direct numeric entry or by spin wheel
High setting resolution of 1mV in up to 60 volts
Multiple non-volatile setting memories
Variable OVP and OCP trips
Low resistance and power calculation
Analog control interfaces for voltage and current
Bench or rack mounting with front and rear terminals
GPIB, RS-232, USB & LAN (LXI) interfaces (QPX1200SP)
60V, 50A max.