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Today's portable medical devices allow patients to diagnose and treat themselves, move around freely, and even use the devices when they are out and about. To achieve the "easy to carry" feature, po...[Details]

The U.S. Food and Drug Administration (FDA) points out that home health care is the fastest growing area in the medical device industry. Driven by the increase in average life expectancy, the increasi...[Details]

1. Introduction At present, with the continuous development of modern medical devices, especially electronic instruments directly connected to the human body, in addition to the increasingly high...[Details]

Ultrasound systems are among the most sophisticated and complex signal processing instruments in widespread use today. Like any complex instrument, there are many trade-offs to be made in implement...[Details]

0 Introduction to the direct method of feedback linearization based on dynamic equilibrium state theory The basic idea of ​​the direct method of feedback linearization based on dynamic equilib...[Details]

Compared with traditional light sources, light-emitting diodes (LEDs) have many advantages, such as low operating voltage, high energy efficiency, small size and directional light. They can provide...[Details]

In a Class D audio power amplifier, the preamplifier is a relatively important module. It is located at the front of the entire topology and completes the processing of the input signal source,...[Details]

1. What is fading? In terms of scope, fading can be roughly divided into three types: large area fading, small area fading and indoor fading. As shown in Figure 1, large area fading refers t...[Details]

1. Basic circuit characteristics of power amplifier The basic circuit of the complementary symmetrical OTL power amplifier is shown in Figure ①. Among them: C1 is the signal input coupling ele...[Details]

1. Introduction With the rapid development of modern computer technology and Internet technology, embedded systems have begun to occupy the mainstream of the market. Due to the high ...[Details]

The growing global interest in green power has added new variables to the design of power supplies and power adapters. Designers must not only traditionally consider the design specifications requi...[Details]

The four-element infrared detector uses photosensitive elements, and the alarm is triggered only when each detector detects a signal. It has stronger anti-false alarm capability and better detectio...[Details]

With the increasing application of various nonlinear loads, reactive power and harmonic pollution in the power grid have become a very serious problem. In order to eliminate the pollution caused by...[Details]

Set-top boxes often have some faults during the use process. This is a problem commonly reported by users. Due to the lack of professional knowledge and skills, users are often at a loss when probl...[Details]

1 Introduction Rectifier circuits, especially single-phase bridge controlled rectifier circuits, are the most important and widely used circuits in power electronics technology. They are n...[Details]