UTMEL
We are the professional distributor of electronic components, providing a large variety of products to save you a lot of time, effort, and cost with our efficient self-customized service. careful order preparation fast delivery service
Sort by
Image Sensor: How do CCD and CMOS Sensors work?09 June 2020
An image sensor is a semiconductor device that can convert optical images into digital signals. It is widely used in digital cameras and other electronic optical devices. The image sensor uses the photoelectric conversion function of the photoelectric device to convert the light image on the photosensitive surface into an electrical signal in a proportional relationship with the light image. There are two kinds of image sensors which are CMOS and CCD. CCD and CMOS have their advantages in different application scenarios.
Switching Diodes Basics: Working, Types and Circuit Analysis04 June 2020
Switching Diodes are a type of semiconductor diode. They are specially designed and manufactured for "on" and "off" on a circuit. As the name suggests, it refers to a diode with a switching function.
Inductor Basics: Structure, Parameters, and Measurement03 June 2020
Inductors are components that can convert electrical energy into magnetic energy and store it. An inductor generally consists of a skeleton, a winding, a magnetic core, an iron core, a shielding case, and a package. Commonly used inductors are adjustable inductors and choke inductors. In the circuit, the inductor prevents the AC and allows DC to pass through.
Introduction to Types of Motion Sensors01 June 2020
Motion sensor refers to a device that detects the motion of an object or person, including gravity, linear acceleration, rotation vector, vibration frequency, etc. Motion sensors can be used to monitor device movements such as tilt, shake, rotation, or swing. Among them, the rotation vector sensor and the gravity sensor are the most commonly used sensors for motion detection and monitoring. Today we come to learn about various types of motion sensors, including accelerometers, tilt sensors, vibration sensors, PIR (passive infrared) sensors, and rotation sensors.
Introduction to Temperature Sensors22 May 2020
The temperature sensor refers to a sensor that can sense the temperature and convert it into a usable output signal, which is the core part of the temperature measuring instrument. It's divided into 5 types and each type has unique working principles. Besides, some factors need to be noticed in the installation and using process. For the temperature sensor can accurately measure the ambient temperature, it's widely used in various fields and provide convenience for people's production and daily lives.
What are Proximity Sensors?21 May 2020
The proximity sensor is a general term for a sensor that replaces contact detection methods such as limit switches. It aims to detect without contacting the detection object. It can detect the movement information and presence information of the object into electrical signals.
An Overview of Linear Integrated Circuits08 May 2020
A linear integrated circuit is an integrated circuit based on an amplifier. The meaning of "linear" used to indicate that the response relationship of the amplifier to the input signal is usually linear.In this essay, we’ll first introduce the development history of linear integrated circuit. And then the production process and the high-frequency technology are discussed in detail. The following two parts mainly talk about the linear integrated circuit types and forms. And the final chapter analyzes the two typical bipolar linear integrated circuit一 Lm386 and 34063.
SMD Resistors: Codes, Size, Testing, Tolerance and Selection07 May 2020
SMD Resistor or Chip Fixed Resistor is one of the metal glass glaze resistors. It is a resistor made by mixing metal powder and glass glaze powder and printing on the substrate by the screen printing method. It is resistant to humidity and high temperature and has a low-temperature coefficient. SMD Resistor can greatly save the cost of circuit space and make the design more refined.
Types, Structure, and Packages of Integrated Circuits30 April 2020
The type of integrated circuit can be divided according to its use, function, structure, manufacturing process, integration, and conductivity type. The structure of the integrated circuit can be learned from levels from top to bottom: system level - module level - register transfer level (RTL) - gate level - transistor level. The packaging forms of integrated circuits include SOP, PGA, BGA, DIP.
What is a Decoupling Capacitor?24 April 2020
In electronic circuits, it is often seen that there is an electrolytic capacitor near the power supply pins of the integrated circuit. This capacitor is a decoupling capacitor. Decoupling capacitors usually have two functions: one is energy storage, and the other is to remove high-frequency noise.
Introduction to Light-emitting Diode23 April 2020
The light-emitting diode is simply referred to as LED. Gallium arsenide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and gallium nitride diodes emit blue light.
What are the Differences Between Pull up and Pull down Resistors?16 April 2020
Pull up is to clamp an uncertain signal to a high level with a resistor, and the resistor also acts as a current limiter. In the same way, pull down means to clamp the uncertain signal to a low level through a resistor. To pull up is to input current to the device, and the pull-down is to output the current.