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How to Accurately Measure Power Supply Ripple Noise: Probe Selection, Grounding, and Bandwidth Tips

A user was testing the ripple of a 5V signal output from a switching power supply using an oscilloscope with a 500MHz bandwidth. They found that the peak-to-peak value of the ripple and noise reached over 900mV (as shown in the figure below), while the switching power supply's specified peak-to-peak ripple value was
2025-06-13 10:44:48 417
How to Accurately Measure Power Supply Ripple Noise: Probe Selection, Grounding, and Bandwidth Tips

Why did HMC lose out to HBM?

Both HMC (Hybrid Memory Cube) and HBM (High Bandwidth Memory) were developed with the goal of replacing DDRx. They share similar names, structures, and both utilize 3D TSV technology, with performance levels surpassing that of DDRx by several times during the same period.Driven by the AI boom, HBM has reached its peak, while HMC has quietly faded into the background. What factors led to such a significant disparity? This article will analyze the underlying reasons. HMCHMC (Hybrid Memory Cube) was once haile....
2025-06-10 14:50:09 1085
Why did HMC lose out to HBM?

What is a pulse signal and how is it generated?

I. Definition and Basic Characteristics of Pulses 1. What is a pulse? A pulse (Pulse) typically refers to a brief, pulsating electrical impulse (voltage or current) commonly used in electronic technology, resembling a heartbeat. Its main characteristics include waveform, amplitude, width, and repetition frequency. A pulse is a signal that occurs for a short duration within the entire signal cycle, with most of the cycle being signal-free, much like a human pulse. Pulses are used for synchronization, trigger....
2025-06-05 11:15:38 1138
What is a pulse signal and how is it generated?

What are some advanced applications of MCUs?

It is often said that MCUs themselves are not particularly advanced. During MCU development, certain standardized procedures must be followed, such as defining variables and functions, determining their lifecycle, scope of use, and access conditions; commonly used communication protocols should be abstracted, with fixed input/output specifications to facilitate product portability.However, in practice, there are often multiple implementation options for the same requirement, but there is always an optimal s....
2025-05-30 10:32:35 397
What are some advanced applications of MCUs?

How to Successfully Design a Power Module?

Power modules are power supplies that can be mounted directly onto a printed circuit board (see Figure 1) and feature power supplies for application-specific integrated circuits (ASICs), digital signal processors (DSPs), microprocessors, memories, field-programmable gate arrays (FPGAs), and other digital or analog loads. Generally, these modules are referred to as point-of-load (POL) power supply systems or point-of-use power supply systems (PUPS). Because of the many advantages of modular construction, a w....
2025-05-27 10:28:32 1313
How to Successfully Design a Power Module?

Balancing Resistors in Op-Amp Circuits

Balancing resistors have the following main roles in electronic circuits: to make the line symmetrical: balancing resistors can make the input side of the circuit symmetrical, thus reducing the error caused by asymmetry. Offset the input leakage current: balancing resistors help to offset the input leakage current, reducing the error caused by leakage current. Improvement of output state reliability: The use of balancing resistors improves the reliability of the output and reduces state instability due to u....
2025-05-23 11:37:34 838
Balancing Resistors in Op-Amp Circuits

Power Inductors and Choke Inductors What are their main differences?

Power inductors and common-mode chokes differ significantly in their definition, function, and use. Common mode chokes, also known as common mode inductors, are mainly used to filter out common mode interference signals and protect sensitive components in circuits from external electromagnetic interference. It is through the use of inductors on the role of AC signal obstruction, the common mode interference signal is limited to a small range, commonly used in computer switching power supply and board design....
2025-05-23 11:33:02 1144
Power Inductors and Choke Inductors What are their main differences?

PCB Layout Design Points Analysis

In the electronic circuit system, the printed circuit board (PCB) is to carry electronic components, the realization of the key carrier of the electrical connection, and PCB Layout (Printed Circuit Board Layout and Wiring) design is to determine the performance of the PCB core link. From the signal integrity of electronic products to electromagnetic compatibility, from product reliability to production costs, the quality of PCB Layout design plays a decisive role. The following is a comprehensive analysis o....
2025-05-22 10:23:00 1084
PCB Layout Design Points Analysis

Understanding Inductors: Types, Structure, Characteristics, and Applications in Electronics

Basic Concepts An inductor is an electronic component that converts electrical energy into magnetic energy and stores it. The main characteristic of an inductor is its resistance to changes in current, i.e., when the current through the inductor changes, the inductor generates an induced electromotive force to impede the change in current. This resistance is expressed in terms of the inductance L in Henrys (H). Its basic structure is similar to that of a transformer, but with only one winding. The main func....
2025-05-19 14:53:10 1364
Understanding Inductors: Types, Structure, Characteristics, and Applications in Electronics

What is a lithium battery protection IC?

Figure. 1 1. What is a lithium battery (lithium-ion rechargeable battery)?Lithium batteries (Li-ion rechargeable batteries) are rechargeable batteries that are charged and discharged by utilizing the movement of “lithium ions”. Advantages of lithium batteries1. Compact and lightweight Lithium-ion batteries have a higher energy density than conventional rechargeable batteries, so they can be made smaller and lighter. As a result, lithium-ion batteries are widely used in mobile devices such as sm....
2025-05-09 14:41:07 1146
What is a lithium battery protection IC?

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