BRL Test, Inc.

Electronic Test Equipment

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QL355 - TTI -Thurlby Thandar Instruments Power Supplies DC


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  • Model: QL355
  • Manufactured by: TTI -Thurlby Thandar Instruments
  • Max. Voltage: 35.0V
  • Number of Outputs: Single
  • Max. Current: 3.00A
  • Extra Specifications: Precision DC bench power supply 35V/5A multirange

The QL series represents the ''''next generation' of laboratory power supplies offering an unparalleled level of precision and performance.
Voltage and current are controlled using 16 bit DACs enabling voltages to be set to 1mV resolution even at full output. Indeed, the accuracy is sufficient for the PSU to be used as a calibration source for some hand-held DMMs.
The QL series uses pure linear technology and offers unrivalled performance in terms of regulation, output noise and dynamics. Line and load regulation are at the limit of measurement. Output noise is less than 350µV rms. Recovery time from transient current pulses is better than 50µs.
The QL series provides full remote sense capability via dedicated sense terminals. Remote sense is essential to maintain precise regulation at the load (two 0·03 Ohm connection leads will drop 300mV at 5 Amps). When remote sense is not required, internal local sensing can be selected at the touch of a button.

  • Single output or triple output models
  • Setting by direct numeric entry or spin wheel
  • 1mV resolution at up to 56 volts
  • Multiple ranges for increased current flexibility
  • Multiple non-volatile setting memories
  • OVP and OCP trips with alarm output
  • Selectable remote sense terminals
  • Linked-mode operation of main outputs (triple)
  • Auxiliary output of 2.7, 3.3 or 5.0V at 1A (triple)
  • GPIB, RS232 and USB interfaces (P versions)
  • Front and rear mounted terminals (P versions)
  • Setting memories for added convenience
  • Fast, simple, and safe to use
  • Compact design for bench or rack
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