Features of 8259 Programmable Interrupt Controller: The Features of 8259 Programmable Interrupt Controller are 1. It can manage eight priority interrupts. This is equivalent to providing eight interrupt pins on the processor in place of INTR…
Interaction of Circuit Breaker: The circuit breaker performance can well be seen from the interaction between the breaker and the circuit. It is convenient to regard the short-circuit current i in the period around current…
Class A Power Amplifiers (Direct Coupled with Resistive Load): A class A power amplifiers is defined as a power amplifier in which output current flows for the entire cycle (360°) of the input signal, as…
Serial Communication Interface 8251: Most of the microprocessors are designed for parallel communication. In parallel communication number of lines required to transfer data depend on the number of bits to be transferred. For example, to…
Octal Number System (Definition, Conversions & Examples): The number system with base (or radix) eight is known as the octal number system. Although we can use any eight digits, it is customary to use the…
Single Machine Infinite Bus in Power System: Figure 12.14 is the circuit model of a Single Machine Infinite Bus in Power System through a line of reactance Xe. In this simple case From Eq. (12.29b)…
Electric Field Inside a Conductor: Imagine an infinitely long straight conductor far removed from other conductors (including earth) carrying a uniform charge of q coulomb/metre length. By symmetry, the equipotential surfaces will be concentric cylinders,…
Current Controlled Current Source (CCCS) Circuit: An ideal form of a Current Controlled Current Source (CCCS) Circuit by an input current is shown in Fig. 36.39. Such a circuit provides an output current dependent on…
Voltage Control Techniques for Inverters: It has already been mentioned that Inverter Control providing a variable frequency supply to three phase motors should be capable of providing a variable voltage. This is required to avoid…
Periodic Intermittent Duty: The class of duty making use of the ability of electric motors to operate with overload is called Periodic Intermittent Duty. The load on the motor is a sequence of identical duty…
