In electrical power systems, electric power is generated, transmitted, and distributed in the form of alternating current. The electrical power is generated at a power generating station which is located far away from the consumer's load. The generated power is then transmitted and distributed through an electrical network to the load ends. But it is also important to note that power is generated at a lower voltage, transmitted at a higher voltage, and distributed at a lower voltage again. This voltage variation is for many technical and economic reasons. For changing this voltage at many locations in the power system, ... Read More

In digital electronics, adders and subtractors both are the combinational logic circuits (a combinational logic circuit is one whose output depends only on the present inputs, but not on the past outputs) that can add or subtract numbers, more specifically binary numbers. Adders and subtractors are the crucial parts of arithmetic logic circuits in processing devices like microprocessors or microcontrollers. In this article, we will discuss adders and subtractors in detail. What is an Adder? We have different types of digital devices like computers, calculators that can perform a variety of processing functions like addition, subtraction, multiplication, division, etc. The ... Read More