Notes Zener diode as voltage regulator A zener diode when working in breakdown region, can be used as a voltage regulator because it maintains a constant output voltage even when the current through it changes. The ...
Notes Principle of switching regulator A switching regulators uses a pulse width modulator to produce a pulse train whose duty cycle is automatically adjusted. The basic circuit is shown in figure above. When drive pulse ...
Notes TTL NAND gate In TTL device, each emitter acts as a diode, therefore, Q1 and 4kΩ resistor acts like a 2 -input AND gate. The rest of the circuit inverts the signal so ...
Notes Operation of Master slave JK flip flop System To begin with the master is positive edge triggered and slave is negative edge triggered. Therefore, master responds to its J and k inputs before the slave.1. If J=1 ...
Notes Astable multivibrator The 555 timer is a TTL compatible integrated circuit that can be used as oscillator to provide a clock wave output levels. With the proper external components connected circuit continuously ...
Notes Working of a Monostable Multivibrator: The free running oscillator (stable) can be changed into a switching circuit having one stable and one quasi stable state. The resulting mono stable circuit is widely used in industry ...
Notes Shift Register A register is simply a group of flip flop that can be used to store a binary number. Each flip flop is capable of storing one bit information. A register ...
Notes Multiplexer A multiplexer (MUX) is a device that can receive multiple input signals and synthesize a single output signal in a recoverable manner for each input signal. The simple function of ...
