I need help from all the experts. I want a practical circuit for controlling a 220V AC relay (DC resistance 660 ohms) with a 1.5V DC signal through photoelectric coupling. Thank you. (I used 4N35 and ...
When writing the 430 overall program, how do I implement the calls between different files, how do I write c and h files, the conditions for the calls, etc. I would like some advice from an expert, th...
[p=26, null, left][color=#333333][font=Arial]1.SPI driver TLE7241E has the problem of incorrect return value. Mainly due to the wrong timing, the data has not been established when TLE7241E inputs sam...
This is a bit different and may not be suitable to be asked in an electronics forum... Because the whole requirement does not allow for power supply equipment (including batteries, power supplies, etc...
I know one is the National Undergraduate Electronic Design Competition, but the official website cannot be opened. I searched Baidu for a long time but still don’t know how to register. Another one is...
I'm new to electrochemistry. Does anyone know about the potential sensor inside a lithium battery cell? I want a very small sensor that can be built into the battery cell....
xiaoxiao6ST Sensors & Low Power Wireless Technology Forum
In order to prevent traffic accidents, when the intelligent detection device of the car detects danger ahead, it must send a warning message to the driver. The voice alarm clearly reminds the drive...[Details]
Calibrators are widely used in university experiments. Among them, there are two experiments in nuclear physics experiments in modern physics experiments (GM counter and β absorption) that require ...[Details]
Although improper medical device product design is not always associated with medical device-related errors. Studies of users have shown that lack of adequate training accounts for 70% to 90% of suc...[Details]
Project Overview
The micro urine analyzer we designed can detect ten parameters of urine, including white blood cells, nitrite, urobilinogen, protein, pH value, occult blood, specific g...[Details]
1 Introduction
The multifunctional monitor is a commonly used clinical medical device. It can display the patient's electrocardiogram (ECG), respiration (RESP), blood oxygen saturation (SP...[Details]
This article discusses how to use an ultra-low-power RF transceiver chip from Zarlink Semiconductor for pacemakers, neurostimulators, drug pumps, and other such implantable medical devices to achiev...[Details]
Digital-to-analog converters (ADCs) provide the critical conversion of analog signals to digital signals in many systems. They perform amplitude quantization of an analog input signal to a binary fini...[Details]
For more than 10 years, analog-to-digital converters (ADCs) have been widely used in industrial process control, medical instruments, communication systems, radar and other products as a booster of in...[Details]
With the rapid development of digital technology, various digital display screens have emerged, including LED, LCD, DLP, etc. There are various control systems for various digital large screens, in...[Details]
Basic principles of simulation
Simulation is a technology used in the field of embedded system development. It can bring system developers the controllability and visibility needed to integra...[Details]
To ensure the success of China's TD-SCDMA network commercialization, operators and equipment suppliers need to conduct a large number of tests on networked equipment, among which RF testing is...[Details]
This article first briefly introduces the working principles of current mode and voltage mode and their respective advantages and disadvantages; then discusses the ideal voltage mode using output c...[Details]
Today's mobile phone production testing faces an increasingly complex environment, with challenges of multiple frequency bands and multiple standards, pressure on production test speed, and pres...[Details]
There are many ways to attenuate signals. The most commonly used method is to divide the voltage using resistors. The common circuits are as follows:
Oscilloscope pre-stage attenuation c...[Details]
Introduction
The home ECG and blood pressure monitoring system consists of a data acquisition and recording device and a host computer electronic medical record management system. Therefor...[Details]
Power technology
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