Datasheet

Linear regulation with more than 100 watts per output
Advanced dc power supply range, single or triple output
Very high precision, very low noise, excellent dynamics
Advanced user interface with numeric and rotary control
Multiple voltage/current ranges for increased flexibility
Multiple non-volatile memories for power supply set-ups
Switchable remote sense provides perfect load regulation
Comprehensive protection including OVP and OCP trips
Compact bench footprint; modular width for rack mounting
Auxiliary output fully variable 1.00V to 6.00V at 3A
with selectable voltage and current metering (T models)
Bus programmable via USB, RS232, GPIB or LAN (P models)
LAN interface is LXI class C compliant
Duplicate power and sense terminals at rear (P models)
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Building upon success
The original QL series re-defined the laboratory power supply in terms of
precision and performance.
Now the QL Series II builds upon that success and adds new features and
models.
One third or two third
rack width, 4U height
Linked mode control for
tracking operation or
series/parallel wiring
Up to 160 memory stores
for voltage and current
settings
Variable over-voltage and
over-current protection
trips
Safety binding post terminals
can accept fixed-shroud 4mm plugs** as
well as normal plugs, bare wires, and fork
connectors
16-bit precision, 1mV
setting resolution
Current resolution down
to 0.1mA
Individual output switches
plus master control
Remote or local sense with
keypad selection
Auxiliary output, fully variable 1.00V to 6.00V
at 3A (bus control and readback on P versions)
Rotary control of voltage
and current
Watts display
(V x A)
Exceptional precision
The QL series offers an unparalleled level of precision. Voltage and current are
controlled using instrumentation quality 16 bit DACs enabling voltages to be set
to 1mV resolution even at full output voltage.
Indeed, the accuracy is sufficient for the QL to be used as a calibration source for
some hand-held DMMs.
Multiple ranges for greater flexibility
The QL series II provides multiple ranges for increased current capability at
lower voltages. The QL564, for example, is a 112W PSU with three ranges.
The main range offers 0 to 56 volts at up to 2 amps. The higher current range
provides up to 4 amps for voltages up to 25V. A further low current range
provides an enhanced current setting and measurement resolution of 0.1mA.
Unrivalled performance
The QL series uses pure linear technology and offers unrivalled performance in
terms of regulation, output noise and dynamics.
Line and load regulation are close to the limit of measurement. Recovery time
from transient current pulses is better than 50µs.
Differential output noise is less than 350µV rms in CV mode and down to
20µA rms in CI mode.
Of equal importance for critical applications in areas such as telecoms is
common mode noise current (the noise current flowing between the output
terminals and ground). This is less than 4µA rms on the QL Series - dramatically
better than most other PSUs.
Fully bus programmable via USB, RS232,
GPIB or LAN interfaces (P versions)
Multiple ranges for
increased flexibility
Duplicate rear terminals
(P versions)
Direct numeric setting
of voltage or current