Series Operation

SHOCK HAZARD Floating voltages must not exceed 240 Vdc. No output terminal may be more than 240 Vdc from chassis ground.

Connect in series only outputs that have equivalent current ratings. Each output has a reverse voltage protection diode across its output terminals. The current conducted by this diode is not internally

limited by the output. Therefore, never connect an output in such a way that this

diode will conduct

current in excess of the rated current of the output since damage could result.

Connecting outputs in series provides a greater voltage capability than can be obtained from a single output. Because the current is the same through each element in a series circuit, outputs connected in series must have equivalent current ratings. Otherwise, the higher rated output could potentially damage the lower rated output by forcing excessive current through it under certain load conditions.

Figure 4-13 shows an example of how to connect two outputs in series to a single load with local sensing. This configuration applies to both CV and CC operating modes. Connecting the + load lead of output 2 directly to the - V terminal of output 1 completes the series connection between the two outputs. Connecting the + S terminal of output 2 directly to the - S terminal of output 1 and removing the sense jumper (between + S and + V) on output 2 compensates for the IR drop in the load lead from output 2 to output 1.

Figure 4-13. Series Connections with Local Sensing

CV Operation

For CV operation, first program the current setting of each output to the desired current limit point. Then program the voltage of each output so that the sum of both voltages equals the total desired operating voltage. The simplest way to accomplish this is to program each output to one half of the total desired operating voltage. Both outputs will operate in CV mode.

Output Connections and Operating Information 57

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Agilent Technologies 6621A, 6627A, 6622A, 6623A, 6624A Series Operation, Series Connections with Local Sensing CV Operation
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6627A, 6621A, 6624A, 6623A, 6622A specifications

Agilent Technologies is renowned for its high-quality electronic test and measurement equipment, and the Agilent 6600 series is no exception. This series includes models like the Agilent 6621A, 6622A, 6623A, 6624A, and 6627A, each designed to meet the needs of various application requirements, making them an essential part of modern laboratories.

The Agilent 6621A is a single-output DC power supply that provides a stable output voltage and current, making it ideal for testing and powering electronic devices. It features a low noise specification, which is crucial for sensitive applications. With a maximum output voltage of 30V and a current of 3A, it offers flexibility for a range of projects, from powering prototypes to performing benchmark tests.

The Agilent 6622A, a dual-output model, enhances versatility by allowing users to power two devices concurrently. It delivers output voltages of up to 20V and a total output current of 5A, which is perfect for powering circuit boards with multiple components. The built-in voltage and current limiting functions protect the equipment under test, preventing any potential damage.

On the other hand, the Agilent 6623A provides additional capabilities with its three outputs, making it particularly suitable for complex testing procedures. With a maximum voltage of 20V and output current reaching 6A across all channels, it ensures that multiple loads can be powered simultaneously without compromising performance.

The Agilent 6624A further pushes these capabilities with its higher output power. This model boasts two outputs with a combined maximum output of up to 6A, supporting devices that require more demanding power levels. Its advanced control features allow for precise voltage and current adjustments, enhancing reliability during experiments.

Lastly, the Agilent 6627A stands out as a highly scalable power supply, capable of delivering up to 40V and 7.5A across its multiple outputs. This model is particularly beneficial for applications requiring higher voltages, enabling engineers and technicians to work with a broader array of components and systems.

All models in the Agilent 6600 series incorporate built-in protection features to guarantee safety during testing. They are equipped with memory functions, allowing users to save and recall settings quickly. Additionally, the intuitive interface and various connectivity options make these power supplies user-friendly, ensuring efficient workflow in any laboratory setting. In summary, the Agilent 6600 series offers a compelling combination of versatility, precision, and advanced features, catering to diverse electronic testing applications.
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