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 auto-ranging 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.
Fast voltage changes
When it comes to speed, the N6750 high-performance auto-ranging 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 throughput when your test calls for frequent changes in power supply voltage settings.
Autoranging for flexibility
The N6750 high-performance auto-ranging DC power modules and the N6760 precision DC power modules give you even more flexibility by providing auto-ranging outputs. This auto-ranging 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, and high current as well as high voltage, and 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 auto-ranging 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.
Options 2UA, 760, 761
Option 2UA provides a 200-microampere measurement range and includes the option 761 relay capability. Please note, this is available on Models N6761A and N6762A only.
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 to disconnect both the plus and minus sides of the power supply, including the sense leads.
Many models available
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 is 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