Agilent Technologies 664xA, 665xA, 667xA, 669xA, 668xA instruction

Connecting Series 668xA and 669xA Power Supplies to the Load

ENERGY HAZARD. These power supplies can provide more than 240 VA at more than 2 V. If the output connections touch, severe arcing may occur resulting in burns, ignition or welding of parts. Do not attempt to make connections to live output circuits.

Analog Connector	-Output Bus Bar	-Local Sense Tap
+ Output Bus Bar	+ Local Sense Tap	Signal Common

A Option 601 cover required for bench installation

Figure 4-5a. Series 668xA and 669xA Rear Panel Output Connections

Output Isolation

Except for a high value (>1 MΩ) internal bleeder resistor, the output of the power supply is isolated from earth ground. Either output terminal may be grounded or an external dc voltage source may be connected between either output and ground. However, both output terminals must be kept within ±60 Vdc of ground.

The earth ground terminal located near the output bus bars is a low-noise signal ground for convenience only. It is not designed to function as a safety ground.

Load Considerations

Capacitive Loads

In most cases, the power supply will maintain stability with external load capacitors. However, large load capacitors may cause ringing in the supply's transient response. It's possible that certain combinations of load capacitance, equivalent series resistance, and load-lead inductance will result in instability (see also “Stability” under “Remote Sensing”). If you need help solving a stability problem, contact an Agilent Service Engineer through your local Agilent Sales and Support Offices.

If the output is rapidly programmed into capacitive loads, the power supply may momentarily cross into CC operation, thereby extending the CV programming time. When it crosses into CC mode, the supply's maximum slew rate is limited by the CC loop and is a function of the loop current compensation. This may be optimized for particular compensation. These momentary crossover situations, which are communicated via the status register, may increase programming times, but will not damage the power supply.

76 User Connections

668xA, 669xA, 667xA, 664xA, 665xA specifications

Agilent Technologies has long been a pioneer in the production of high-performance electronic test and measurement instruments, particularly in the field of power sources. Among its notable offerings are the Agilent 667xA, 669xA, 665xA, 664xA, and 668xA series of power supplies. These instruments are designed to provide stable, reliable power for a variety of applications, including electronic testing, industrial processes, and research laboratories.

The Agilent 667xA series is characterized by its programmability and advanced measurement functions. These power supplies support a wide range of output voltages and currents, allowing for flexible configurations that cater to different testing needs. The built-in measurement capabilities enable users to monitor the voltage, current, and power with high precision, which is essential for ensuring optimal performance in electronic applications.

The Agilent 669xA series stands out with its high-power outputs, making it suitable for demanding applications. These power supplies deliver high voltage and current levels, making them ideal for testing high-performance devices, such as power amplifiers and motor drives. Additionally, the 669xA series includes features such as overvoltage protection and complex output sequencing to enhance the safety and reliability of the testing process.

The Agilent 665xA and 664xA series focus on delivering high accuracy and excellent regulation. These models are particularly known for their low noise operation, which is critical for sensitive applications where precision is paramount. The integrated programming capabilities allow users to automate testing sequences, thus improving efficiency in research and development settings.

The 668xA series features advanced digital signal processing that enhances the precision and stability of the output. Users benefit from features like remote sensing and monitoring, allowing feedback adjustments that maintain output accuracy despite cable losses. Furthermore, the 668xA models can integrate seamlessly with various test environments thanks to their LAN, GPIB, and USB connectivity options.

Overall, the Agilent 667xA, 669xA, 665xA, 664xA, and 668xA power supplies provide a comprehensive range of solutions for diverse electronic testing needs. With their advanced features, superb measurement capabilities, and robust performance, these instruments empower engineers and researchers to conduct their work with confidence, precision, and efficiency.

Agilent Technologies 664xA, 665xA Connecting Series 668xA and 669xA Power Supplies to the Load

Models: 668xA 669xA 667xA 664xA 665xA