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

For example, examine Figure E-l for the Model 6680A/6681A. The chart shows that a load comprised of about

1 millihenry inductance and 100 micro ohms resistance (see point ) requires switch setting 9 (only switch 3 closed) to

obtain 10% overshoot. If the load resistance is increased to 1 milliohm, then the operating position will be to the left of the existing compensation curve (see point ). This will result in a stable condition with less overshoot, but greater CV/CC

crossover time than if the curve defined by switch setting 8 were used. If the load resistance remains at 1 milliohm but the load inductance increases to 10 millihenries, then the operating position will be far to the right of the compensation curve (see point ). This results in a less stable condition with more overshoot. To obtain better operation at point , use the compensation curve defined by switch setting 13 (Model 6680A) or 12 (Model 6681A).

Most operating conditions will not fall directly on a curve and you will have to interpolate between curves. Generally, moving to the left of a given curve increases stability. However, at large values of inductance the curves become almost vertical because the load resistance has no effect on dampening the system. For Models 6680A and 6681A, the most stable points are on the solid curves shown in Figure E-l. Points to the right or left of a curve will have more overshoot. Note the two dashed vertical lines at switch setting 25 for Models 6682A, 6683A, and 6684A. Operation between these lines will result in somewhat increased stability.

Note	The best procedure is to test your settings under real operating conditions. For help in tailoring a specific
	CC compensation, contact your Agilent Sales and Support Offices.

Figure E-1. CC Loop Compensation Curves for Models 6680A and 6681A

130 Current Loop Compensation (Series 668xA Only)

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.