product id: 54689
High current, low noise
The PL068, PL068-P and PL068-P(G) have been introduced to meet the need for a high current linear regulated laboratory power supply. The PL068 can provide current up to 8 amps whilst retaining the very low noise and fast dynamics common to the rest of the PL range. Voltage is variable between 0V and 6V with a resolution of 1mV. Selectable remote sense ensures perfect regulation at the load. Current meter resolution is 1mA right up to 8A, and a low-current range provides an optional resolution of 0.1mA.
Analog controls with digital stability
The main disadvantage of analog controls is stability and security. The settings of analog potentiometers an drift over time. More importantly, the settings can be changed accidentally with potentially serious consequences. The PL068 and PL068-P introduce S-Lock. One press of the Lock button transfers control of voltage and current from the analog controls to internal digital circuitry. This offers not just complete security, but exceptional stability as well with each setting controlled by an instrumentation quality DAC.
Linear regulation for ultra-low noise
Linear regulation still offers the lowest output noise and the best transient response (recovery time from a sudden current step). Most linear regulated power supplies offer low output noise with figures below 2mV RMS being typical. The PL068 and PL068-P goes a stage further and an RMS noise figure of 0.4mV with tightly specified pk-pk noise and common-mode current figures.
Ultra-compact design with higher power efficiency and near-silent cooling
The PL068 and PL068-P achieve an exceptional power density for a linear regulated power supply by offering 48 watts from a 1/4 rack 3U sized casing. This gives it an unusually small bench footprint taking up less space on a crowded bench. For rack-mount application, up to four PL-Series supplies can be mounted into a single slot. Despite their small size and linear regulation, they generate relatively little heat through the use of an advanced phase controlled pre-regulator. This gives the PL068 and PL068-P significantly higher energy efficiency than conventional linear regulated designs, particularly when supplying lower voltages. The internal heat-sinks use fan-assisted convection cooling in order to remove the heat with minimal fan noise.
Choose a voltage range that suits your task
When working with any particular piece of equipment, you may require a voltage source variable over only a narrow range. Set the voltage too high and damage might occur, set it too low and the circuit may reset. That's where the V-Span function of the New PL series comes in. It allows the you to redefine the end-stop values of the voltage control to define a specific voltage range. For example: you're working on a circuit that will eventually operate from four NiMh cells, use V-Span to set a Vmax of 5.8 volts (to prevent over-voltage damage) and a Vmin of 3.6 volts (to ensure that the circuit doesn't reset). You now have a power supply which provides high resolution analog control over the exact voltage range needed. Vmin and Vmax can be set anywhere between zero and maximum output voltage subject only to Vmax > (Vmin + 0.1V). The fine control gives additional adjustment of ±1%. Once set, the voltage span function can be turned on or off at the press of a button.
Advanced Bus Programmable DC Power Supplies
Interfacing to every application, the PL068-P and PL068-P(G) are bus-programmable and include all of the manual control features of the PL series, but adds comprehensive remote control facilities. The ultra-compact rack-modular sizing makes it ideally suited to rack mounted system applications, while the user-friendly manual controls are retained for bench top applications. A comprehensive array of digital interfaces is provided to meet the varying needs of today's engineers. RS-232, USB and LAN (Ethernet) with LXI support are provided as standard. Each of the digital bus interfaces provides full control of voltage, current, and output on/off, plus read-back of voltage, current and status. A model [PL068-P(G)] with GPIB interface is also available.
Additional interface options with PL068-P DC Power Supply:
 Comprehensive Array of Interfaces |
| PL Series DC Power Supplies | Volts/Amps | Watts | Output(s) |
|---|---|---|---|
| PL068, PL068-P, PL068-P(G) | 0-6V, 0-8A | 48 | 1 |
| PL155, PL155-P, PL155-P(G) | 0-15V, 0-5A | 75 | 1 |
| PL303, PL303-P, PL303-P(G) | 0-30V, 0-3A | 90 | 1 |
| PL601, PL601-P, PL601-P(G) | 0-60V, 0-1.5A | 90 | 1 |
| PL303QMD, PL303QMD-P, PL303QMD-P(G) | 2 x 0-30V, 0-3A | 180 | 2 |
| PL303QMT, PL303QMT-P, PL303QMT-P(G) | 2 x 0-30V, 0-3A + 1 x 0-6V, 0-8A | 228 | 3 |
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