AIM & THURLBY THANDAR INSTRUMENTS QPX600D & QPX600DP 1200 watt dual dc power supply with PowerFlex+ Dual independent or tracking outputs of up to 600 watts each Variable voltage/current combinations over a very wide range Up to 80 volts and up to 50 amps within each power envelope Smart tracking and metering for easy series/parallel operation Analog, RS-232, USB, GPIB and LAN interfaces (QPX600DP) aimtti.com aimtti.co.uk aimtti.usQPX600D - dual 600 watt dc power supply with PowerFlex+ 80V, 50A max. 80V 70V 60V QPX600D 50V PowerFlex+ Power Envelope 40V (600W max. per output) 30V 20V 10V 0V 0A 5A 10A 15A 20A 25A 30A 35A 40A 45A 50A The QPX600D is a dual output dc power supply with a maximum total output Dual independent or tracking 600 watt outputs power of 1200 watts and is suited to both bench-top and system applications. Ultra-wide range of voltage/current combinations The QPX600DP incorporates full digital remote control using USB, RS-232, LAN Up to 80V and up to 50A within each power envelope and GPIB interfaces. Both models include analog remote control. Isolated tracking of voltage only, or voltage and current PowerFlex+ The QPX600D is a different type of laboratory power supply designed to meet Smart metering and tracking functions facilitate the need for flexibility in the choice of voltage and current. series or parallel wiring for up to 160V or 100A A conventional PSU has a fixed current limit giving a power capability that Low output noise and ripple reduces directly with the output voltage. High setting resolution of 1mV The TTi PowerFlex+ design of the QPX600D enables higher currents to be generated at lower voltages within an overall power limit envelope. Each Variable OVP and OCP trips output can provide more than six times the current of a conventional PSU of Analog control interfaces for voltage and current the same maximum voltage and power (see power curve). GPIB, RS-232, USB and LAN (LXI) interfaces (QPX600DP) PowerFlex+ uses a balanced multi-phase converter system to minimise ripple and improve dynamic performance. Example voltage/current combinations include 80V/7.5A, 60V/10A, 40V/15A, Independent or simultaneous output control 28V/20A, 18V/30A and 10V/50A. The Both On and Both Off buttons are in Dual independent or tracking outputs addition to the individual switches for The QPX600D can be operated as two entirely independent power supplies, each output, and allow both outputs to each with its own comprehensive graphic LCD display. be turned on or off synchronously by a Alternatively multiple isolated tracking modes are available including ones single button press. intended for series and parallel operation which provide metering of total Synchronous switching of the outputs is of increasing importance for voltage or total current respectively. circuitry which can lock-up or even be damaged if one voltage rail is Tracking Modes: present without the other. 1. V2 set = V1 set 2. V2 set = N% x V1 set, where N can be between 5% and 2000%. Power calculation 3. V2 set = V1 set, I2 set = I1 set. Additional display metering shows the The meter for each output can be set to show the total power currently being total current flowing (I1+I2 actual). This mode is intended for provided to the load (V x A) to a resolution of 0.1 watts. parallel wiring of the outputs. 4. V2 set = V1 set, I2 set = I1 set. Additional display metering shows total Low resistance calculation voltage generated (V1+V2). This mode is intended for series The meter for each output can wiring of the outputs. be set to show the equivalent resistance of the load by Up to 160V or 100A displaying voltage divided by The combination of PowerFlex+ current. regulation with series or parallel Low resistance measurements wiring of the outputs and the use using a DMM utilise a low excitation current and suffer from thermal emf of smart tracking and metering, errors and other low voltage effects. enables a higher voltage or This function enables low resistance measurements to be made at high higher current single output power supply to be simulated. currents by using the remote sense terminals to create a four terminal Bench or rack mounting connection. This can give much more reliable results for certain component The QPX600D is housed in a 350mm (13) wide case suitable for use on the types, such as magnetics, which operate at ampere levels. bench-top. Output and remote sense terminals are mounted on the rear panel along with the analog and logic interface connectors and, on the QPX600DP, the bus interface connectors. The power supply is 3U high and a rack mounting kit (RM310A) is available as an option.