Schering bridge is an AC bridge which is used for the measurement of unknown capacitance. This is one of the most commonly used AC bridge. Schering bridge is shown in figure 1 under balance condition. Introduction From figure 1, there are four arms as arm 1 = ab arm 2 = ad arm 3 = … Read more
Biotelemetry consists of two parts i.e. Bio and Telemetry. Bio is related to living being or process or phenomenon occurring in the human body. Telemetry is the measurement at a distance. So, Biotelemetry is a method of measuring biological parameters from a distance. The transmission of data from the point of generation to the point of … Read more
Boolean algebra is a set of rules which are used to simplify the given logic expression without changing its original functionality. So in this article, we are going to learn about Boolean algebra. The Boolean algebra was invented by George Boole; an English mathematician who helped in establishing modern symbolic logic and whose algebra of … Read more
SR flip-flop is one of the fundamental sequential circuit possible. This simple flip flop is basically a one-bit memory storage device that has two inputs, one which will ‘Set’ the device (i.e. the output is 1), and is labelled S and other which will Reset the device (i.e. the output is 0), labelled R. The … Read more
Q. Write an 8085 program and draw a flowchart to Sum a series of 8-bit numbers.(8085 Microprocessor Program) Flowchart/Algorithm Program Address Mnemonics Operand Opcode Comments 2000 LXI H, 3000H 21 Load H-L pair with address 3000H. 2001 00 2002 30 2003 MOV C, M 4E Move the counter from memory to reg. C. 2004 MVI … Read more
A Latch is a basic memory element that operates with signal levels (rather than signal transitions) and stores 1 bit of data. Latches are said to be level sensitive devices. Latches are useful for storing information and for the design of asynchronous sequential circuits. SR Latch The SR latch is a circuit with two cross-coupled … Read more
In Sequential Circuits, the present output depends on the present input as well as past output(s). It consists of a combinational circuit and memory elements. A block diagram of a sequential circuit is shown in Fig.1. It consists of a combinational circuit to which storage or memory elements are connected to form a feedback path. … Read more
A DAC (Digital-to-Analog Converter) is used to convert a digital signal to the analog format. An example of DAC: music stored in a DVD in digital format must be converted to an analog voltage for playing out on a speaker. Consider a DAC system having N-bit digital input and an analog output. The block diagram … Read more
Gray code is a binary numeral system where two successive value differs only in 1 bit. This code is given by Frank Gray. This is the reason why it is called as Gray code. It is an unweighted code. Gray code is also known as reflected binary code or unit distance code or minimum error … Read more
Wave trap is a device which prevents the high-frequency carrier signals to enter the substation side. It is also known as line trap. It is connected in series with the transmission line. It is designed to carry the rated power frequency (50 Hz or 60 Hz) current, as well as to withstand the substation fault … Read more