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What is Field Programmable Gate Array?29 September 2020
Field Programmable Gate Array (FPGA) is a product of further development on the basis of programmable devices such as PAL and GAL. It emerged as a semi-custom circuit in the field of application-specific integrated circuits (ASIC), which not only solves the deficiencies of custom circuits but also overcomes the shortcomings of the limited number of gate circuits of the original programmable devices.
What is Electronic Ballast?28 September 2020
Electronic Ballast is a kind of ballast, which uses electronic technology to drive the electric light source to produce the required lighting. Corresponding to it is the inductive ballast. More and more modern fluorescent lamps use electronic ballasts, which are light and compact, and people can even integrate electronic ballasts with lamps.
Introduction to Silicon Controlled Rectifier25 September 2020
Silicon Controlled Rectifier, abbreviated as SCR, is a high-power electrical component, also known as a thyristor. It has the advantages of small size, high efficiency and long life. In the automatic control system, it can be used as a high-power drive device to realize the control of high-power equipment with low-power controls. It has been widely used in AC and DC motor speed control system, power control system and servo system.
What is FIR Filter?24 September 2020
FIR (Finite Impulse Response) filter is a finite-length unit impulse response filter, also known as a non-recursive filter, which is the most basic element in a digital signal processing system. It can guarantee arbitrary amplitude-frequency characteristics while having strict linear phase-frequency characteristics, and its unit sampling response is finite, so the filter is a stable system.
What is a Digital Potentiometer?23 September 2020
Digital potentiometer, also known as CNC programmable resistor, is a new CMOS digital and analog mixed signal processing integrated circuit that replaces traditional mechanical potentiometer (analog potentiometer). The digital potentiometer is controlled by a digital input and produces an analog output. Depending on the digital potentiometer, the maximum tap current can range from a few hundred microamps to a few milliamperes.
An Overview of Crystal Oscillator21 September 2020
The oscillator is an energy conversion device that converts DC power into AC power with a certain frequency, and the circuit formed by it is called an oscillating circuit. Some electronic devices require an AC signal with a highly stable frequency, but the LC oscillator has poor stability and the frequency is easy to drift. A special component-quartz crystal is used in the oscillator, which can generate a highly stable signal. This kind of oscillator using a quartz crystal is called a crystal oscillator.
Introduction to Potential Transformers21 September 2020
A potential transformer is a device used to transform voltage. The purpose to transform the voltage is mainly for measuring instruments, as the power supply of relays, measure the voltage, power, and energy of the line, or protecting the valuable equipment, motors, and transformers in the line when the line fails.
Solid State Relay Basics: Working, Features and Structure17 September 2020
Solid State Relay (SSR) is a non-contact switch composed of microelectronic circuits, discrete electronic devices, and power electronic power devices. The isolation device is used to realize the isolation between the control end and the load end. The input terminal of the solid state relay uses a tiny control signal to directly drive a large current load.
An Overview of Isolation Transformers17 September 2020
An isolation transformer is a transformer in which the input and output windings are electrically isolated. The isolation transformer is to isolate the current of the primary winding and the secondary winding respectively.
Introduction to Mass Air Flow Sensor15 September 2020
Mass air flow sensor is one of the important sensors of EFI engines. It converts the inhaled air flow into an electric signal and sends it to the electronic control unit (ECU). As one of the basic signals for determining fuel injection, it is a sensor that measures the air flow into the engine.
Basic Understanding of Attenuators15 September 2020
An attenuator is used to introduce a predetermined attenuation within a specified frequency range. It is generally indicated by the decibel of the attenuation introduced and the ohm of its characteristic impedance.
What is a Gyroscope Sensor?11 September 2020
A gyroscope is a device used to sense and maintain direction, designed based on the theory of indestructible angular momentum. The gyroscope sensor is a simple and easy-to-use positioning and control system based on free space movement and gestures.