The N6756A/761 is an N6756A module with option 761 (output disconnect relays) already installed.

The Keysight N6750 Series of high-performance, autoranging DC power modules provides low noise, high accuracy and programming speeds that are up to 10 to 50 times faster than other programmable power supplies. In addition, Keysight has, for the first time, included high-speed test extensions in general-purpose power supplies. The high-speed test extensions offer an oscilloscope-like digitizer that simplifies system configuration and increases measurement accuracy when viewing high-speed transient or pulse events within the DUT. In addition, autoranging output capabilities enable one power supply to do the job of several traditional power supplies.

Careful attention has been paid to this design to ensure low normal mode noise (ripple and peak-peak) as well as low common mode noise. While all DC power modules are switching power supplies, the N6750 high-performance autoranging DC power modules, the N6760 precision DC power modules, and the N6780 Source Measure Units are switching power supply designs that outperform most linear power supplies on the market.

When it comes to speed, the N6750 high-performance autoranging DC power modules, the N6760 precision DC power modules, and the N6780 Source Measure Units achieve performance unlike a typical DC power supply. Thanks to an active down-programming circuit to rapidly pull down the output when lowering the output voltage, these power modules can rapidly program both up and down in voltage. Changing voltage from 0 V to 50 V, or 50 V to 0 V for example, can be accomplished in less than 1.5 milliseconds.

Note that for smaller voltage changes, from 0 V to 5 V or 5 V to 0 V for example, the programming speed is less than 200 microseconds. These output speeds allow the N6750/60/80 to give maximum system through-put when your test calls for frequent changes in power supply voltage settings.

The N6750 high-performance auto-ranging DC power modules and the N6760 precision DC power modules give you even more flexibility by providing autoranging outputs. This autoranging capability provides maximum output power at any output voltage up to 60 V. This allows one power supply to do the job of several power supplies, because its operating range covers low voltage, high current as well as high voltage, low current operating points. For example, the N6755A high-performance, autoranging DC module, rated at 20 V, 50 A, and 500 W can provide full power at:

• 10 V @ 50 A (= 500 W),
• 20 V @ 25 A (= 500 W),
• 15 V @ 33 A (= 500 W),
• or anywhere in between

Therefore, this 500 W autoranging power supply, due to its extended voltage and current range, can produce voltage and current combinations in the range of a 1000 W non-autoranging power supply.

Option 054 (High-speed Test Extensions) include output list and digitized measurement capability. This option is separately orderable for Models N673xB, N674xB, N677xA, and N675xA when installed in an N6700 MPS mainframes. All other power modules as well as the N6705 DC Power Analyzer mainframes have output list and digitized measurement capability built in.

• Output list: 
• Maximum number of steps = 512 
• Maximum dwell time in seconds = 262 
• Maximum list repetitions = 256 or infinite 
• Digitized measurement: 
• Maximum measurement points = 524,288 
• Maximum sample rate = 97.656 kHz 

With option 760, Output Disconnect/Polarity Reversal Relays, mechanical relays switch the leads on both the plus and the minus side of the power supply, including the sense leads, resulting in a voltage polarity reversal at the DUT. In addition to polarity reversal, option 760 provides the same output disconnect function as option 761. 

With option 761, Output Disconnect Relays, an emergency condition or turning the DC output off causes mechanical relays disconnect both the plus and minus side of the power supply, including the sense leads. 

Keysight offers a variety of modules for use with its N6700 product family, including power supplies, loads and SMU’s. Each of the series names below are clickable and will open a link in a new window to that particular group.

• N6730 – Basic DC power modules (50W)
• N6740 – Basic DC power modules (100W)
• N6750 – High performance DC power modules (up to 500W)
• N6760 – Precision DC power modules (up to 500W)
• N6770 – Basic DC power modules (300W)
• N6780 – Source measure unit (SMU) modules
• N6790 – Load modules