The Aim-TTi CPX200DP Digital Bench/ System DC Power Supply is a two-channel, flexible power supply with support for bus control.
Each of the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply’s channels has a maximum power output of 180W, a maximum voltage output of 60V, and a maximum current output of 10A. The PowerFlex design provides variable voltage and current combinations within the maximum power envelope and enables higher currents to be generated at lower voltages.
Each of the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply’s outputs can operate in constant voltage or constant current mode and includes automatic crossover as well as a mode indicator and over-voltage protection.
In addition to this, the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply’s PowerFlex regulation system utilises a high-frequency pre-regulator in combination with a linear post regulator to provide a good transient response and low noise.
The Aim-TTi CPX200DP Digital Bench/ System DC Power Supply’s outputs are independent and electronically isolated to provide greater flexibility.
Additionally, the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply includes a V-Track mode which disables the Slave voltage controls and sets the Slave voltage to the same level as the Master voltage. The two outputs continue to remain electronically isolated in this mode. The V-Track mode allows the user to generate two rails of either polarity which may be referenced to different grounds.
Alternatively, the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply’s two outputs may be wired in series or parallel to increase the voltage and current outputs to 120V and 20A respectively.
Both of the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply’s outputs feature independent On/Off switches. This PSU also includes a Both On/ Both Off switch for activating and deactivating both channels simultaneously; this is particularly useful for circuits which may be damaged if only one of the voltage rails is present.
Each of the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply’s channels includes coarse and fine voltage controls and a logarithmic current control for setting low current levels accurately. In addition to this, the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply has internal digital circuitry to prevent settings from drifting or being accidentally altered. The S-Lock button transfers control of the voltage and current settings from the analogue dials to the internal digital system, providing the user with the ease of analogue control combined with the precision and stability of digital operation.
The user is able to see and alter settings by pressing the View Settings button.
Additionally, each of the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply’s outputs includes a remote sense at the terminal to ensure precise regulation at the load and true metering of the load voltage. The remote sense terminals can be activated and deactivated as required.
Furthermore, both channels have a dedicated voltage and current meter with a 4-digit display and fixed 10mA/ 10mV resolution, allowing the user to gather precise and repeatable measurements at a glance. The fixed resolution prevents accidental misreading of results as is common with auto-ranging 3/3.5-digit meters.
The Aim-TTi CPX200DP Digital Bench/ System DC Power Supply can also be used as a Fixed Power Supply. When set to the Fixed Power Supply mode, the resolution of the voltage and current controls is improved; the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply is also kept in constant current or constant voltage mode despite the load.
In addition to this, it is possible to customise the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply’s voltage and current limits allowing the user to tailor the PSU to meet the requirements of his/her application.
The Aim-TTi CPX200DP Digital Bench/ System DC Power Supply is suitable for laboratory bench and rack-mount applications, as well as panel and remote control. To this end, it features a small bench footprint and is housed in a compact ½ rack 3U case, this allows two units to be fitted into a single rack slot.
Furthermore, the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply features power and sense terminals on both the front and rear of the unit which is particularly useful for rack-mount applications.
Moreover, as mentioned above, the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply is able to accommodate remote bus control. To this end, it supports digital interfaces including RS-232, USB, LAN (LXI) and GPIB. Each of these digital bus interfaces provides full control of voltage, current and output on/off, as well as read-back of voltage, current and status.
Additionally, the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply includes an IVI driver which is able to support high-level Windows applications such as LabView, LabWindows and HP/ Agilent VEE.
Finally, the Aim-TTi CPX200DP Digital Bench/ System DC Power Supply includes safety binding posts which are touch-proof to 250V due to their limited opening length and raised insulated shoulders. The binding posts are able to accept normal plugs, bare wires and fork connectors as well as fixed-shroud 4mm plugs.
The Aim-TTi CPX200DP Digital Bench/ System DC Power Supply is a compact, reliable and flexible PSU suitable for variable power supply and fixed power supply applications.
Output Specifications (each output) | |
Voltage/Current/Power Levels | Voltage Range:0V to 60V |
Current Range:0A to 10A | |
Power Range: Up to 180W subject to power envelope. | |
Note | Actual maxima for voltage and current are typically 1% greater than the figures given above. |
Power Envelope | The maximum current at any voltage settings is limited by the power envelope which is set to give 3A at 60V rising to 10A at 16V under all ac supply conditions (both outputs loaded). At lower output voltages the power is restricted by the 10 amps current maximum. See PowerFlex power envelope graph on page four |
Output Setting and Control | Voltage Setting: By coarse and fine controls |
Current Setting: By single logarithmic control | |
Output Mode: Constant voltage or constant current with automatic cross-over. CC indicator lit in constant current mode |
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Output Switch: Electronic, non-isolating. Preset voltage and current limit displayed when Output is off. Output rise time no load <10ms. |
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View Settings: With the output On, the meters show actual voltage and current. The preset levels can be viewed and adjusted at any time by pressing the View Settings button |
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Status Indication: LED indication of Output On, V/I Limits, CV, CI, Power Limit, Remote, LAN status. Message on meter display for trip condition. |
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S-Lock | (Settings Lock) Voltage and current settings can be locked by a single button press. Lock accuracy is equal to the meter accuracy (see Meter Specifications). |
Output Performance | Ripple & Noise: Typically <1mV rms, <15mV pk-pk, (3mV rms max.) in CV mode. |
Load Regulation: Voltage - <0·01% of maximum output for any load change within the PowerFlex envelope (remote sense connected). Current - <0·05% of maximum output for any load change within the PowerFlex envelope |
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Line Regulation: Voltage - <0·01% of maximum output for a 10% line change. Current - <0·01% of maximum output for a 10% line change. |
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Transient Response: <250µs to within 50mV of setting for a 5% to 95% load change. | |
Temp. Coefficient: Typically <100ppm/°C | |
Output Protection | Output Protection: Forward protection by Over-voltage Protection (OVP) trip. Reverse protection by diode clamp for currents to 3A. |
OVP Setting/Range: Via screwdriver adjustable preset on front panel. Range 1V to 66V | |
Over-temperature: Output trips off for over-temperature. | |
Safety Interlocks: Operations that could cause an unexpected change in voltage or current settings are interlocked with the output switch. |
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Output Connections | Output Terminals: Universal 4mm safety binding posts on 19mm (0·75”) spacing at front. Screw terminals at rear (CPX200DP only). |
Terminals can accept fixed shroud 4mm plugs, standard 4mm plugs, fork terminals and bare wires. | |
Remote Sense | Sense Selection: Voltage sensing is selected as Local or Remote by front panel switch. |
Sense Terminals: Sprung loaded screw-less terminals at front. Screw terminals at rear (CPX200DP only). |
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Meter Specifications (each output) | |
Display Type | Dual 4-digit meters, 10mm (0·39”) LED |
Voltage Meter | Resolution/ Accuracy: 10mV / ± 0·1% of reading ± 2 digits |
Current Meter | Resolution/ Accuracy: 10mA / ± 0·3% of reading ± 20mA |
Voltage Tracking (CPX400D & DP) | |
Independent Mode | In the normal mode of operation, each output is fully independent and isolated. Operation is equivalent to two single-output power supplies. |
Voltage Tracking Mode | The two outputs remain isolated, but the Slave voltage controls are disabled and the Slave voltage is set equal to the Master voltage. This can be used to generate tracking bipolar voltages, or tracking unipolar voltages relative to different grounds. When voltages greater than 60V are required, the outputs can be wired in series to generate 0 to 120V with the voltage controlled from the Master. When currents greater than 10A are required, the outputs can be wired in parallel to create the equivalent of a 20A power supply with the voltage controlled from the Master. Track Accuracy: Slave voltage = ± (0·1% of Master voltage setting + 10mV) |
Both On/ Both Off (CP400D & DP) | Each output has an independent DC On/Off control, however, an additional control button is provided which turn both outputs on or off simultaneously. |
Analogue Remote Interface (CPX400SA Only) | |
The CPX400SA offers galvanically isolated analogue remote control of voltage and current from control voltages. Voltage and current front panel settings generate non-isolated analogue output voltages that can be used to control slave power supplies. |
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Input Scaling | 0 to 100% control of voltage or current from 0 to 5V or 0 to 10V (selectable) |
Input Accuracy | Voltage: 0.3% ±20mV. Current: 0.5% ±50mA. Input impedance 10KΩ |
Output Scaling | Set values of 0 to 100% of rated output voltage and current generate 0 to 5V (not isolated) |
Output Accuracy | Voltage: 0.3% ±20mV. Current: 0.5% ±50mA. Output impedance 125Ω |
Remote On/Off | Output On/Off can be controlled by external switch closure (not isolated) |
Digital Bus Interfaces (CPX400SP & CPX400DP) | |
The CPX200DP offers full remote control and read-back using RS-232, USB, GPIB or LAN (compliant with LXI class C). All interfaces are at ground potential and opto-isolated from the output terminals. Note: Remote/Local Sense, is manually selectable only. |
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RS-232 | Standard 9-pin D connector. Baud rate 9,600. |
USB | USB 2.0 connection (backwards compatible with USB 1.x). Operates as a virtual COM port. |
GPIB (IEEE-488) | The interface conforms with IEEE-488.1 and IEEE-488.2. |
Ethernet (LAN) | Standard 10/100 base-T hardware connection. ICMP and TCP/IP Protocol for connection to Local Area Network or direct connection to a single PC. |
LXI Compliance | LAN interface is compliant with LXI Core 11 v1.4. (LXI is the abbreviation for Lan eXtensions for Instrumentation). |
Digital Programming Performance (CPX400SP & DP only) | |
Voltage Setting | Resolution/Accuracy: 1mV / ± (0.05% +10mV) |
Current Setting | Resolution/Accuracy: 1mA / ± (0.3% +5mA) |
Programming Speed | Command Delay: Typically <25ms (this must be added to any of the figures below) |
Voltage Up Time: <10ms* to 1% | |
Voltage Down Time: <80ms* to 1% (full load); <1.5s* to 1% (no load) | |
* The up and down times vary with range and voltage step size. | |
General Specifications | |
Input | AC Input: 110 to 240 volts ±10% 50/60Hz. Installation Category II. |
Input Power: 500VA max | |
Temperature & Environmental | Operating Range: +5ºC to +40ºC, 20% to 80% RH |
Storage Range: -40ºC to + 70ºC | |
Environmental: Indoor use at altitudes up to 2000m, Pollution Degree 2. | |
Cooling: Rear discharge variable speed fan. | |
Safety & EMC | Safety: Complies with EN61010-1 |
EMC: Complies with EN61326 | |
Physical |
Size: 210 x 130 mm (½ rack 3U) x 377mm (size excludes feet, knobs and terminals). |
Weight: 5.0kg (11lb) | |
Driver Software Supplied (CPX200DP) | |
IVI Driver | An IVI driver for Windows is supplied. This provides support for common applications such as LabView*, LabWindows*, HPVEE* etc. |
USB Driver | An installation file is supplied which calls a standard Windows* USB driver. |
Notes | * LabView and LabWindows are trademarks of National Instruments. HPVEE (now Agilent VEE) is a trademark of Agilent Technologies. |
* USB interface is supported for Windows 2000 and above. Windows is a trademark of Microsoft. |