In binary phase-shift keying (BPSK), the phase of a carrier is changed according to the digital pulses signal. BPSK modulator is a phase modulator. Here the transmitted signal is a sinusoid of fixed amplitude. It has one fixed phase when the data is at one level and when the data is at the other level, the phase is shifted by 180 degrees. The binary phase-shift keying method … [Read more...] about Binary Phase Shift Keying (BPSK) Modulation Using cd4016 With Simulated Output Waveform
Using Op-Amp
AC Voltage Stabilizer Circuit Diagram | with Low Voltage Alarm
What is the use of a voltage stabilizer? Voltage stabilizers are used to stabilize the input voltage to protect the rest of the circuitry from unwanted electrical spikes, nowadays some devices have an inbuilt stabilizer circuit. Due to the fluctuation of supply voltage devices may malfunction or damage permanently. To avoid these problems an ac voltage stabilizer is … [Read more...] about AC Voltage Stabilizer Circuit Diagram | with Low Voltage Alarm
Simple LM35 Electronic Temperature Sensor Indicator Circuit
This is a simple temperature sensor circuit diagram using the LM335 temperature sensor and LM3914 IC. Here the complete temperature range becomes observable through an array of LEDs. The LM35 is an integrated circuit temperature sensor for sensing temperature on a degree Celsius scale. The LM3914 is an efficient display driver cum Milli volt … [Read more...] about Simple LM35 Electronic Temperature Sensor Indicator Circuit
Zero Crossing Detector (ZCD) | Comparator Circuit Using 741 Op Amp
A zero-crossing detector(ZCD) is a voltage comparator that switches the output between +Vsat and –Vsat (Vsat: Saturation voltage almost equal to 14V) when the input crosses zero reference voltage. Then what is a comparator? In simple words, comparators are basic operational amplifier circuits that compare two voltages simultaneously and switch the output … [Read more...] about Zero Crossing Detector (ZCD) | Comparator Circuit Using 741 Op Amp
Summing Amplifier | Inverting Adder Circuit Using Op Amp 741
A summing amplifier or an adder is used to sum two signal voltages. A voltage adder circuit is a simple circuit that enables you to add several signals together. It has a wide variety of applications in electronic circuits. For example, on a precision amplifier, you may need to add a small voltage to cancel the offset error of the op-amp itself. An audio mixer is another good … [Read more...] about Summing Amplifier | Inverting Adder Circuit Using Op Amp 741