Pulse Frequency Modulator
The compact pulse cum frequency modulator utilizes a comparator IC, designated as IC1, to modulate the pulse width effectively. The modulation process involves adjusting the change-over point of the comparator, which is influenced by an external control voltage. This control voltage determines the threshold at which the comparator switches states, thereby altering the duration of the output pulse.
In practical applications, the control voltage can be generated using a potentiometer or a digital-to-analog converter (DAC), allowing for precise adjustments to the pulse width. The output of the comparator can be connected to various components, such as transistors or operational amplifiers, to drive loads or further process the signal.
The design may also include filtering stages to smooth out the output waveform or to limit the frequency response, ensuring that the modulated signal meets the required specifications for its intended application. The compact nature of the modulator allows it to be integrated into various electronic systems, providing flexibility in signal processing tasks.
Overall, this circuit can be utilized in applications such as pulse-width modulation (PWM) for motor control, signal generation for communication systems, or as part of a more complex modulation scheme in RF applications.The pulse width of the compact pulse cum frequency modulator can be varied by altering the change-over point of comparator IC1 with a control voltage via.. 🔗 External reference
Related Circuits
This is a TMP01 Temperature-to-Frequency Converter circuit. Converting voltage to the frequency domain is another common method of transmitting analog signals. The TMP01 is a temperature sensor that outputs a frequency signal proportional to the temperature it measures. This circuit...
The frequency doubler utilizes a single integrated circuit (IC). Similar to other frequency doublers, this circuit leverages both the rising and falling edges of the input signals to generate digital pulses, effectively doubling the input frequency. In the absence...
In counter mode, it provides 1 Hz resolution up to 100 MHz. In timer mode, the maximum resolution is 0.0000001 Hz up to 1 Hz. The resolution decreases by one digit for each additional decade. Multiple frequency updates per...
The circuit was designed to create an electronic oscillator known as a Wien Bridge Oscillator, which can be used for the creation of low-frequency sine waves. The Wien Bridge Oscillator is a type of electronic oscillator that generates sine waves....
Wall sockets provide power in the form of a 230-volt sine wave, operating at a frequency of 50 hertz. This means that the voltage alternates between positive and negative at a rate of 50 full cycles per second. Different...
An RF input is applied to the primary of transformer T1, which provides equal amplitude, opposite phase RF drive to output FETs Q1 and Q2. In the absence of AF modulation at points A and B, the opposite phase...