Jan 31 2019
Warm hints: This article contains about 4000 words and reading time is about 18 mins. IntroductionPotentiometers are one of the most commonly used tunable electronic components. The potentiometer is derived from the development of a variable resistor. It consists of a resistor body and a rotating o
Jan 29 2019
Warm hints: This article contains about 5000 words and the reading time is about 20 mins. IntroductionA potentiometer is actually a variable resistor. Because it functions in the circuit to obtain an output voltage that is related to the input voltage (applied voltage), it is called a potentiometer
Jan 24 2019
Warm hints: This article contains about 4000 words and the reading time is about 18 mins. IntroductionA resistor is a current-limiting component. After the resistor is connected to the circuit, the resistance of the resistor is fixed. Generally, it has two pins, which can limit the current through
Jan 22 2019
Warm hints: This article contains about 4000 words and the reading time is about 18 mins. IntroductionThe thermistor is a semiconductor ceramic component made of transition metal oxide as the main raw material. It belongs to the category of negative temperature coefficient thermistor, and it has th
Jan 17 2019
Warm hints: This article contains about 4000 words and the reading time is about 18 mins. IntroductionA relay is an electronic control device that has a control system (also called an input loop) and a controlled system (also called an output loop). It is usually used in an automatic control circui
Jan 15 2019
Warm hints: This article contains about 6000 words and reading time is about 22 mins. Introduction The operational amplifier is referred to as an op amp. It was named "Operational Amplifier" because it was used in analog computers in the early days to implement mathematical operations. Mainly used
Jan 11 2019
Warm hints: This article contains about 5000 words and reading time is about 20 min. IntroductionThe Zener diode is a surface contact type crystal diode made of silicon material, referred to as a Zener tube. This diode is a semiconductor device that has a very high resistance until the critical rev
Jan 8 2019
Warm hints: This article contains about 4000 words and reading time is about 18 min. IntroductionIn the hierarchy of computer storage systems, high-speed small capacity memory between the central processor and main memory. It constitutes a level one memory together with the main memory. The schedul
Jan 5 2019
Warm hints: This article contains about 4000 words and the reading time is about 18 min. IntroductionCapacitors can be used to provide important ride-through (or hold) energy or to reduce ripple and noise in power conversion circuits. Choosing the right type of capacitor can have a profound impact
Jan 3 2019
Warm hints: This article contains about 6000 words and the reading time is about 30 mins. Ⅰ IntroductionA diode is a two-terminal electronic component that conducts current primarily in one direction (asymmetric conductance); it has low (ideally zero) resistance in one direction, and high (ideally
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