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What are the components commonly used on circuit boards? What do they do?

What are the components commonly used on circuit boards? What do they do?

2022-07-28

In the circuit board, all kinds of electronic components have their own role, we will explore the following. Although the circuit does not say how proficient, but we must at least read the circuit, know the role, the following summary of the role of some electronic components.

Are resistance dividing and resistance bucking the same? Difference between resistor divider and resistor step-down

Are resistance dividing and resistance bucking the same? Difference between resistor divider and resistor step-down

2022-07-28

The difference between resistor divider and resistor step-down Let's start with voltage dividing. Generally speaking, a voltage dividing circuit has to be composed of a series circuit with two resistors greater than or equal to each other. For example, a crystal transistor requires a voltage of 0.4 to 0.6V between be's. For this purpose, two resistors are set up in the circuit to divide the voltage between the upper and lower bias. In addition, for signals that are too strong, resistors can also be used to reduce the voltage. There is also the volume potentiometer used in radios, which is also a variable voltage divider. It can be equated to two resistors that change inversely in proportion to each other and can be rotated to obtain different amplitudes of signal voltage for volume control purposes. As can be seen from these examples of voltage dividers, what they have in common is that they only provide voltage to the outside world, while the current is very small. This is why they are more appropriately called voltage divider circuits.

The difference between a voltage regulator and an ordinary diode? Characteristics of voltage regulators and their main parameters

The difference between a voltage regulator and an ordinary diode? Characteristics of voltage regulators and their main parameters

2022-07-28

The difference between a voltage regulator and an ordinary diode? The characteristics of voltage regulator and its main parameters. A, the symbol of the voltage regulator Silicon voltage regulator diode is a silicon diode with PN junction, referred to as voltage regulator. It is used with the appropriate resistance value of the resistor, can play a stable voltage (so that the output voltage of the rectifier circuit can be maintained basically unchanged) role.

What is the principle of the bridge method of resistance measurement? How to measure resistance by bridge method

What is the principle of the bridge method of resistance measurement? How to measure resistance by bridge method

2022-07-28

What is the principle of the bridge method of resistance measurement? The bridge method of measuring resistance. Knowledge about resistance measurement, you can use the bridge method to measure the size of the resistance, its working principle is what kind of, know three of the four resistance to find the remaining one, the following analysis of the bridge method of measuring resistance of the specific method for your reference.

How many types of resistors are there and what are their properties and functions? What is a non-pure resistive circuit?

How many types of resistors are there and what are their properties and functions? What is a non-pure resistive circuit?

2022-07-28

How many types of resistors are there and what are their properties and functions? In 1841, British physicist James Joule discovered that the amount of heat Q (called Joule's heat) generated in a current-carrying conductor is proportional to the square of the current I, the resistance R of the conductor and the time t of energisation, so the law is known as Joule's law. In 1842, the Russian physicist Heinrich Lundji also independently discovered the law, hence the name "Joule-Lundji's Law".

3 must-know advances in thin-film resistor technology

3 must-know advances in thin-film resistor technology

2022-07-28

Thin film resistor technology has come a long way since metallised glass and ruptured carbon films were first offered over eighty years ago as an alternative to wirewound and composite materials. Metal oxides emerged in the 1950s as a more stable film and were widely used until they were milled into metal films for precision (metal film resistors) and thick films for high power applications (high power chip resistors). Both technologies were then adopted in the emerging SMD chip format. This was achieved over thirty years ago and is greatly reflected in today's thin film resistor products. However, it would be a mistake to assume that nothing has changed for thin film resistors.

IoT boom leads to widespread shortage of passive and semi-components

IoT boom leads to widespread shortage of passive and semi-components

2022-07-28

Demand for chip resistors is growing due to the rapid growth of the Internet of Things (IoT), the heavy use of consumer electronics and the trend towards more sophisticated safety and infotainment systems in automobiles. Automotive, mobile device and factory automation applications are all driving demand. As a result, manufacturers in these industries are paying additional premiums for items that have traditionally remained stable at less than a penny per piece.

The next generation of passive electronic components

The next generation of passive electronic components

2022-07-28

Passive components are important in terms of how future technologies will improve while becoming smaller. In the past, design engineers have followed a strict bill of materials to produce a 'black box'. And were always distracted by expensive silicon and noticed passive components simply because they were well below the cost list, ending up at 2.3% of the BOM1. Today, however, the realisation that most of the physical space on a printed circuit board is dominated by passive components (with a focus on ceramic chip capacitors, thick film chip resistors, ceramic chip inductors and multilayer ferrite beads) is finally becoming a key issue. The next area driving end-product technology forward.

Lite-On USA announces a new range of thermally protected varistor technology

Lite-On USA announces a new range of thermally protected varistor technology

2022-07-28

Littelfuse Corporation, a manufacturer of technology for circuit protection, power control and sensing, introduces the LST varistor family and announces a new family of thermally protected varistor technology. This new varistor is built with Littelfuse's proprietary Thermally Protective Varistor Technology (TMOV) developed to combine a built-in thermal disconnect function with arc shielding. This combination provides additional robust protection against catastrophic failure and fire hazards, even under extreme conditions of abnormal overvoltage conditions or end-of-life of the varistor.

What types of resistors are there?

What types of resistors are there?

2022-07-28

Common resistors on the market are divided into three broad categories: fixed resistors, adjustable resistors and special resistors. Fixed resistors are made of materials that have the property of impeding current to the basic components, the resistance value of fixed resistors is fixed, so once a fixed resistor is made, it is immutable. Fixed resistors are also the most commonly used type of resistor on the market. Adjustable resistors, as their name implies, have adjustable resistance values, and the range of adjustment can be divided into different types of adjustable resistor models depending on the form of adjustment, production process, production material, size of volume, etc. Special resistors, such as thermistors, are characterised by exhibiting different resistance values at different temperatures. The following are some of the common types of resistors in the three major classifications, in the hope that you will have a better understanding of resistors.

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