SMD Resistor – Surface Mount Resistor Guide: What is SMD Resistor? SMD Resistor or Surface Mount Chip Resistor is an electronic component with the properties of both obstruction as well as resistance. The property of this component is called resistance.…
Linear Variable Differential Transformer (LVDT) is extensively used transducer in industry and so explained here in detail. LVDT CONFIGURATION Figure 1 shows this mutual inductance transducer. The primary is excited by an external AC voltage. The secondaries, both of equal turns and identical…
An opto-isolator contains a source (emitter) of light, almost always a near infrared light-emitting diode (LED), that converts electrical input signal into light, a closed optical channel (also called dielectrical channel, and a photo sensor, which detects incoming light and either generates electric energy directly, or modulates electric current flowing from an external…
A photo diode is a p-n junction or PIN structure. When a photron of sufficient energy strikes the diode, it excites an electron, thereby creating a free electron (and a positively charged electron hole). This mechanism is also known as the inner photoelectric effect. If the absorption occurs…
The sensitivity of photo diode can be increased to larger value about 100 times by adding a junction resulting in a NPN transistor. The photo transistor is usually connected in a common emitter configuration with base open. The illumination (Radiation) is concentrated on the…
A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor’s terminals changes the current flowing through another pair of terminals. Because the controlled…
A uni junction transistor (UJT) is an electronic semiconductor device that has only one junction. The UJT has three terminals: an emitter (E) and two bases (B1 and B2). The base is formed by lightly doped n-type bar of silicon. Two ohmic contacts B1 and B2 are attached at its ends. The emitter…
Hi, How can I help you?
