4 - Programming Examples

AC Voltage and Frequency

The ac rms output voltage is controlled with the VOLTage command. For example, to set the ac output voltage to 125 volts rms, use:

VOLTage 125

NOTE: In the three-phase model, all phases are programmed to 125 volts rms because the INSTrument:COUPle at *RST is set to ALL.

The ac source can be programmed to turn off its output if the ac output voltage exceeds a preset peak voltage limit. This protection feature is implemented with the VOLTage:PROTection command as explained in Chapter 3.

Maximum Voltage

The maximum rms output voltage that can be programmed can be queried with:

VOLTage? MAX

The maximum voltage that the ac source can output is limited by the peak value of the waveform. This is 425 V peak on all models. Since the user programs output voltage in units of rms volts, the maximum value that can be programmed is dependent on the peak-to-rms ratio (crest factor) of the selected waveform. For a sine waveform, the maximum ac voltage that can be programmed is 300 volts.

For Agilent models 6814B, 6834B and 6843A, you cannot program a voltage that produces a higher volt- second on the output than a 300 Vrms sinewave.

NOTE: Because voltage commands are coupled with the waveform shape and voltage offset commands, changing voltages without changing the waveform shape or voltage offset may result in an error if the resulting peak voltage amplitude exceeds the maximum voltage rating of the ac source. Refer to "Coupled Commands" for more information.

Voltage Ranges (Agilent 6814B/6834B/6843A only)

The Agilent 6814B, 6834B and 6843A have two voltage ranges that are controlled by a relay that switches taps on an output transformer. The command that controls the range is:

VOLTage:RANGe MIN MAX 150 300

When the range is set to MIN (or 150), the maximum rms voltage that can be programmed for a sine waveshape is 150 volts, but it is only on this range that the maximum output current rating is available. For other waveshapes, the maximum programmable voltage may be different, depending on the waveform’s voltage crest factor (peak-to-rms ratio).

NOTE: On the Agilent 6814B, 6834B and 6843A, the VOLTage:RANGe command is coupled with the CURRent command. This means that the maximum current limit that can be programmed at a given time depends on the voltage range setting in which the unit is presently operating. Refer to "Coupled Commands" for more information.

122

Page 121 Page 123
Page 122
Image 122
Agilent Technologies AC Voltage and Frequency, Maximum Voltage, Voltage Ranges Agilent 6814B/6834B/6843A only, 122
Page 121 Page 123

6812B, 6811B, 6813B, 6834B, 6843A specifications

Agilent Technologies, a leader in electronic test and measurement equipment, offers a range of powerful signal sources including the 6843A, 6834B, 6814B, 6813B, and 6811B models. These instruments are designed to support various applications in research, development, and manufacturing, providing precise signal generation capabilities.

The Agilent 6843A is a versatile signal generator known for its exceptional frequency range and modulation capabilities. It supports an extensive bandwidth, making it ideal for applications that require high-frequency signal generation. With its superior phase noise performance, the 6843A is an excellent choice for radar, wireless communications, and electronic warfare applications. The instrument features an intuitive user interface, allowing engineers to set parameters quickly and efficiently.

Next, the Agilent 6834B offers exceptional performance characteristics, including high output power and low distortion. This signal generator is particularly noted for its ability to produce complex modulation formats, making it suitable for testing advanced wireless communication systems. With a reliable and stable output, the 6834B ensures accurate and repeatable measurements, which is vital for thorough testing processes.

The 6814B model stands out for its dual-channel capabilities, allowing users to generate simultaneous signals for testing multiple components or systems. This feature significantly enhances testing efficiency and flexibility for engineers. With built-in arbitrary waveform functionality, users can create custom waveforms, making the 6814B suitable for a wide range of applications including device characterization and signal processing research.

For those seeking a more compact solution, the Agilent 6813B provides essential signal generation features without compromising on performance. It is designed for a variety of applications across telecommunications and consumer electronics, featuring a straightforward interface and robust performance metrics.

Lastly, the 6811B is an entry-level yet capable model that supports a broad spectrum of testing needs. Perfect for educational and laboratory environments, it provides essential functionalities required for effective signal generation and analysis.

Overall, Agilent Technologies' 6843A, 6834B, 6814B, 6813B, and 6811B signal generators offer an array of features and technologies that cater to various application needs. Their precision, reliability, and user-oriented designs position them as invaluable assets in any testing environment, ensuring engineers can carry out their work with confidence and accuracy.
Top Page Image Contents