Thermistor    What is a Thermistor? A thermistor (or thermal resistance) is defined as a type of resistor whose electrical resistance varies with changes in temperature. Although the resistance of all resistors fluctuates slightly with the temperature, the thermistor is particularly sensitive to temperature changes.    

Impedance Matching in PCBs   Concept of Impedance Impedance, denoted Z, is an expression of the opposition that an electronic component, circuit or system offers to alternating and/or direct electric current. Impedance is a vector (two-dimensional) quantity consisting of two independent scalar (one-dimensional) phenomena: res

Operational Amplifiers What are Op Amps? An operational Amplifier or op-amp for short, is fundamentally a voltage amplifying device designed to be used with external feedback components such as resistors and capacitors between its output and input terminals. These feedback components determine the resulting function or “operation&rdquo

UNDERGROUND  CABLES   What is Underground Cable? We've all seen what underground cables are, and where they're going. Going further, we need to consider the various types of underground cables open to us. An underground cable is a wire hidden under the earth. They 're selling electricity or telecommunications. These cables are an alter

Flip Flops (Sequential Logic)   What are Flip Flops? Flip-flops are the fundamental component of sequential reasoning. They essentially store a single binary state integer. There are several flip-flops available that vary in the manner the state is used. Since a flip-flop stores a binary digit it must, by definition, have 2 states. Further

Logic Gates and their Types What are Logic Gates? A logic gate is an idealized or physical electronic device implementing a Boolean function, a logical operation performed on one or more binary inputs that produces a single binary output.  Logic gates are primarily implemented using diodes&n

Types of Batteries for Robots and Robotic Designs   Introduction Choosing the correct battery system for your robots is important since each type uses a different type of battery. Several need smaller ones, whereas others can need larger ones. And so we're asking about the quality of batteries. Here's a comprehensive guide to the forms of r

How Does A Battery Work? What is a battery? Batteries are a collection of one or more cells whose chemical reactions create a flow of electrons in a circuit. All batteries are made up of three basic components: an anode (the '-' side), a cathode (the '+' side) and some kind of electrolyte (a substance that chemically reacts with the anode an

Variable Frequency Drives What is VFD? A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are variable speed drive, adjustable speed drive, adjustable frequency drive, AC drive, microdrive and inverter.   H

Buchholz Relay Construction and Working   What is Buchholz relay? The Buchholz relay prevents the transformer from internal defects. This is the relay of the gas actuated. The Buchholz relay is situated between the main tank and the conservator. This kind of relay is used in a transformer with a rating greater than 500KVA. It is not used in