4

Principles of Operation

Autoranging Power

Autoranging allows the unit to be compact and light weight and yet to deliver a range of output voltage/current combinations which would otherwise require the use of more than one supply or a higher rated power supply. Autoranging is a name for circuitry which automatically makes full power available at all but low rated output voltages and currents. By comparison, a conventional constant voltage/constant current (CV/CC) power supply can provide full output power only at maximum rated output voltage and current.

Overview

The Simplified Schematic, Figure 4-1, shows how the major circuits are connected. Segmenting the Simplified schematic into functional circuit blocks will highlight how these blocks work and illustrate overall system function.

Table 4-1 briefly describes the major circuits employed in the design of this unit. When used in conjunction with the Simplified Schematic, the reader is provided with a quick overall appreciation of the unit's operation.

Power flows from the ac mains at the left of the schematic through circuit blocks connected by heavy lines to the output terminals at the right. Follow the schematic from right to left to see how the output voltage is regulated during CV mode of operation, The output voltage is monitored both at the output sense terminals + S and - S; OVS (Outerloop Voltage Sense) and also before the two stages of output filter IVS (InnerLoop Voltage Sense).

Sensing with output sense terminals provides accurate load-voltage control and sensing before the output filter stabilizes the supply and permits it to power reactive loads. The CV monitor amplifier buffers the OVS voltage to produce the V-MON output monitoring voltage. A buffer amplifier monitors the voltage before the output filter to produce the IVS voltage.

When in CC operation, the output current is regulated in a similar manner. Output current is sensed as the OCS outerloop voltage across a current monitoring resistor. OCS is buffered to produce l-MON. IVS is differentiated to produce an innerloop current sensing voltage.

System Description

The Agilent 6010A /6011A/6012B/6015A are power supplies which utilizes the principle of switching to achieve regulation. Basically, the power supply employs five major functional sub-systems together with the Front Panel to achieve its overall objective of delivering a maximum of 17A or 200V (6010A); 120A or 20V (6011A); 50A or 60V (6012B); 5A or 500V (6015B), at the power output of 1000W.

These sub-systems are

1.Regulation & Control

2.Protection

3.Input Power

4.DC Power Conversion

5.Output

47

Page 46 Page 48
Page 47
Image 47
Agilent Technologies 6015A, 6010a, 6011A, 6012B service manual Autoranging Power, Overview, System Description
Page 46 Page 48

6015A, 6012B, 6011A, 6010a specifications

Agilent Technologies, a leader in the field of measurement and analysis, offers a suite of instruments within its 6010 and 6011 series, specifically the 6010A, 6011A, 6012B, and 6015A models. These devices are designed to meet the needs of various industries, including healthcare, environmental monitoring, and materials testing.

The Agilent 6010A is a high-performance spectrometer known for its precision and versatility. It utilizes advanced optical technologies to provide exceptional wavelength accuracy and resolution. This model is particularly useful in laboratories where reliable data is critical, offering a wide spectral range and effective noise reduction features. Its user-friendly interface simplifies complex analyses, making it suitable for both seasoned professionals and newcomers.

Following closely, the Agilent 6011A is recognized for its robust capabilities in laboratory environments. This device incorporates advanced signal processing techniques, enabling high-throughput measurements without compromising on quality. The 6011A is ideal for real-time monitoring applications, ensuring that users can make informed decisions based on accurate, timely data. Its comprehensive software suite is designed to enhance data analysis, allowing for seamless integration with existing laboratory workflows.

The 6012B variant enhances the functionality further by introducing additional features tailored for specific applications. With a focus on flexibility, the 6012B supports multiple measurement modes, including direct and differential detection. This model excels in complex measurements, allowing for greater analytical depth and insights. The built-in calibration options ensure consistent performance, making it a reliable choice for various research and development tasks.

Lastly, the Agilent 6015A model stands out with its leading-edge technology, designed for the most demanding applications. It boasts enhanced sensitivity and an improved dynamic range, making it perfect for trace analysis in challenging environmental samples. The 6015A’s advanced reporting tools provide detailed analytics, helping scientists and researchers interpret results efficiently. Its compact design also makes it suitable for laboratory spaces with limited room, without sacrificing performance.

Together, these models showcase Agilent Technologies' commitment to delivering high-quality, innovative solutions that empower users to achieve their analytical goals effectively and efficiently. Whether in a research, clinical, or industrial setting, the 6010A, 6011A, 6012B, and 6015A continue to set standards in precision instrumentation.
Top Page Image Contents