Function Generators

Function generators, also called function signal generators or waveform generators, are electronic test equipment that generate multiple electrical waveforms of different shapes, frequencies, amplitudes, and phase offsets. These devices have a large display (LCD, LED) for output monitoring of the waveforms they generate, including square waves, sine waves, triangular waves, sawtooth waves, pulse waves, ramp waves, and more. These waves are crucial for troubleshooting, testing, and designing electronic circuits and systems under different conditions. Additionally, function generators are also useful for calibrating and validating other electronic test equipment in electrical engineering applications.

Potential Benefits of Function Generators

Function generators offer a multitude of benefits, depending on the generator type. Some of the prominent benefits include:

• They are simple to use with stable frequencies.
• Adjustable frequency waveforms with robust flexibility.
• They are cost-effective and offer precise accuracy.
• Remote control models are also available with various package options.
• Large display for easy-to-read outputs.
• Versatile functionality, including troubleshooting, calibration, and debugging.
• User-friendly interfaces with reliable results.

Function Generators and Signal Generators: The Key Difference

Function and signal generators are electronic test equipment that generate electrical waveforms for various applications. However, they differ due to key differences in structure, waveform types, and frequency range. Function generators produce different waveforms with high-frequency stability. In contrast, a signal generator can generate limited waveforms with low-frequency stability.

Popular Types of Function Generators

Function generators come in various types, including DDS function generators and arbitrary function generators, based on their circuitry configurations and generated waveforms. The two common function generator types include:

• Analogue Function Generators – An analogue function generator uses analogue circuitry to generate different waveforms, including sine, square, triangle, and sawtooth waves. The core components of an analogue function generator include oscillators, amplifiers, and shaping circuits.  
• Digital Function Generators – A digital function generator uses digital signal processing techniques to generate complex waveforms. They are typically microprocessor-based devices with advanced features. Digital function generators can also produce arbitrary waveforms and have more precise control over frequency, phase, and amplitude.

Typical Applications of Function Generators

Function generators are essential test and measurement tools in electronics laboratories, research facilities, and engineering applications. These devices find applications in various facilities, including:

• Communication Systems 
• Testing and Troubleshooting
• Research and Development
• Embedded Systems
• Digital Circuits
• Education and Training
• Calibration
• Integrated Electronic Testing
• Analogue and Digital Signal Testing
• Laboratory Testing
• Frequency Response Analysis
• RF Testing.