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LDO Voltage Regulator: Definition, Role, Working Principle

I. What is LDO regulator? LDO regulator is low dropout regulator, which means low dropout linear regulator, is relative to the traditional linear regulator. In order to improve your understanding of LDO regulator, this article will introduce the pinout of LDO regulator and the role of LDO regulator. II. LDO regulator pins (1) The basic pin definition Input pin (VIN/IN) Function : This is the input power pin of the LDO regulator and is used to connect the positive terminal of the external power supply or b....
2025-02-06 11:11:37 1214
LDO Voltage Regulator: Definition, Role, Working Principle

What is a charge pump? How does a charge pump work?

A charge pump is a DC-DC converter that utilizes a capacitor as the energy storage element and is mostly used to produce an output voltage that is larger than the input voltage or to produce a negative output voltage. The electrical efficiency of a charge pump circuit is very high, about 90-95%, and the circuit is fairly simple. Charge pumps utilize a number of switching elements to control the voltage connected to the capacitor. This can be used, for example, in conjunction with a two-stage cycle where a l....
2025-01-22 15:55:49 822
What is a charge pump? How does a charge pump work?

What is Operational Amplifier: Definition, Principle of Operation and Applications

An operational amplifier is a circuit unit with high amplification. In practical circuits, it is usually combined with a feedback network to form a functional module. It is an amplifier with a special coupling circuit and feedback. The output signal can be the result of mathematical operations such as addition, subtraction or differentiation and integration of the input signal. It is named “operational amplifier” because it was first used in analog computers to perform mathematical operations. [....
2025-01-22 14:29:33 1466
What is Operational Amplifier: Definition, Principle of Operation and Applications

Understanding the Input Impedance Limitation of Inverting Amplifiers and Its Impact on Signal Amplification

We all know that an inverting amplifier can amplify an input signal inversely, this is very basic knowledge, and those who have studied electric circuits generally know it. Inverting amplifier formula for Vout = - Vin * Rf / Rin. According to the known formula, can easily complete the design, but inverting amplifiers are born with a small defect, inverting the input amplifier's input impedance is not very high, and we generally hope that the amplifier's input impedance in the circuit design should be high, ....
2025-01-14 10:32:09 1000
Understanding the Input Impedance Limitation of Inverting Amplifiers and Its Impact on Signal Amplification

Analysis of the differences and similarities between crystal load capacitance and crystal side capacitance

In electronic circuits, the crystal is a crucial frequency control component, providing a stable and accurate clock signal for the system. The crystal load capacitance and crystal capacitance on both sides of the normal operation of the crystal oscillator are playing a key role, although they are related, but actually have different characteristics and functions. I. The crystal load capacitanceCrystal load capacitance is a parameter closely linked with the characteristics of the crystal itself, it refers ....
2025-01-09 10:25:27 625
Analysis of the differences and similarities between crystal load capacitance and crystal side capacitance

What is the difference between analog and digital circuits?

The difference between analog and digital circuits is not only reflected in the basic principles, but also has a profound impact on circuit design, performance and application scenarios. Below, we'll take a closer look at the essential differences between these two types of circuits and the role they play in modern electronic systems.In the vast field of electronics, analog and digital circuits serve as the two cornerstones that support the operation of modern electronic systems. Despite their overlapping f....
2024-12-30 11:30:36 1319
What is the difference between analog and digital circuits?

PWM Deadband: Definition, Role and Principle

I. What is deadband? The deadband that occurs in a circuit is the phenomenon in which the output voltage remains unchanged when the input voltage is within a certain range. For example, in a pulse width modulation (PWM) circuit, when the amplitude of the input signal exceeds a certain threshold, the switching tube opens and the amplitude of the output signal increases. However, when the input signal amplitude drops to a certain range, the amplitude of the output signal remains unchanged, resulting in a dead....
2024-12-25 11:36:38 1405
PWM Deadband: Definition, Role and Principle

Several ways to control EMI radiation using PCB layered stacking

There are many ways to solve the EMI problem, modern EMI suppression methods include: the use of EMI suppression coating, selection of appropriate EMI suppression spare parts and EMI simulation design. In this paper, from the most basic PCB board, discuss the role of PCB layered stacking in the control of EMI radiation and design techniques. Power supply busbar Proper placement of capacitors of appropriate capacity near the power supply pins of an IC can make the jump in the output voltage of the IC come ....
2024-12-20 11:14:42 802
Several ways to control EMI radiation using PCB layered stacking

What are the main reasons for the heating of MOS tubes with very low internal resistance?

The main reasons for the heating of MOS tubes with small internal resistance include the following: Power loss: when the MOS tube flows a large current, even if the internal resistance is very small, it will produce a large power loss, resulting in heating. In switching power supplies, if the MOS tube does not turn off and on fast enough, additional power losses are also generated12. Linear operating state: If the MOS tube operates in the linear region instead of the switching region, too long a conduction ....
2024-12-16 11:07:28 1024
What are the main reasons for the heating of MOS tubes with very low internal resistance?

What are Driverless LED Lights?

The great American businessman and inventor of the light bulb, Thomas Alva Edison, once said, “We shall make electricity so cheap that only the rich will light candles.” That statement has indeed come true today. From small houses to paved roads to big industries, we can notice AC lights illuminating our environment after the sun goes down. Earlier lighting systems used different types of bulbs such as incandescent, Compact Fluorescent Lamps (CFLs) etc. but today with the advancement in LED ligh....
2024-12-11 11:02:59 822
What are Driverless LED Lights?

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