Function Generators

SISCO function generator is an electronic test equipment that can generate sine wave, square wave, triangle wave, sawtooth wave, and even arbitrary waveform. The provided function generator is a function signal generator for testing and instrument maintenance of communication, instrumentation and automatic control systems, and is also widely used in other non-electrical measurement fields. Digital function signal generator is available with a frequency sweep, AM and AF functions and 0.1Hz~2MHz/5MHz/10MHz/13MHz/15MHz frequency range.

Key Features of Function Generators

• Waveform Generation: They can generate various waveforms such as sine, square, triangle, sawtooth, and pulse waves. Different waveforms are suitable for testing different types of circuits and applications.
• Frequency Range: Function generators can produce signals across a wide frequency range, from a few hertz to several megahertz or higher, making them versatile for various electronic equipment testing.
• Amplitude and Offset Control: Users can adjust the output signal amplitude and add a DC offset, allowing the signal to meet the requirements of different circuits.
• Modulation Capabilities: Some function generators support amplitude modulation (AM), frequency modulation (FM), and pulse-width modulation (PWM) for more complex signal simulations.

Working Principle of Function Generators

• Oscillator Circuit: The core of a function generator is an oscillator circuit, typically based on a Wien bridge oscillator or a direct digital synthesis (DDS) method. The oscillator generates a stable frequency that can be adjusted over a wide range.
• Waveform Shaping: The generated frequency is then passed through waveform shaping circuits that modify the signal into different waveforms. For instance, a sine wave can be shaped into a square wave using a comparator or a triangular wave using an integrator circuit.
• Frequency and Amplitude Control: The output frequency and amplitude can be varied using control knobs or digital controls, allowing users to set the desired signal characteristics.
• Output Buffering: The shaped waveform is sent through an output buffer, ensuring it has sufficient power to drive external circuits or devices without distortion.

Applications of Function Generators

• Circuit Testing: Used to simulate signals encountered in real-world conditions.
• Education: Commonly used in teaching electronics to demonstrate signal behavior.
• Audio Testing: Used to test audio circuits and speakers by generating sound waveforms.
• Communication Systems: For testing and developing modulation schemes and receivers.
• Microcontroller and Embedded Systems: Used for testing digital logic circuits and microcontroller input/outputs.