The in-phase voltage amplifier of the circuit below is unstable. When testing the transmission line at J8, the output of the first opa855 oscillates. When the input is suspended, the output is 70MHZ w...
The switch circuit composed of triode, the 5v voltage connected to the collector can be powered by a 5v button battery, or is there a good method that can be recommended?...
I am just a sophomore and have just participated in the school's robot competition. I have gained a lot. The head of the department suggested that I start with embedded systems. I don't know much abou...
[size=4] After more than 10 years of development, the LED lighting industry has basically achieved popularization and globalization. Whether indoors or outdoors, LED lighting has become the first choi...
The PC sends 01 via the serial port, communicates with the microcontroller via 232 to 485, and after replying 7F, it keeps replying 00. What's going on?...
SinoWise's SH66xx series 4-bit microcontrollers have the characteristics of fast speed, low power consumption, simple structure, easy to use, and high cost performance. They are widely used in remo...[Details]
TD-SCDMA (Time Division Synchronous Code Division Multiple Access) is one of the three major standards for the third generation of mobile communications. It is a communication standard with indepen...[Details]
The circuit shown in the figure is a three-digit tachometer used to measure low frequency signals with a repetitive time interval of 0.235 to 15 seconds. The tachometer has a speed range of 4 to 255 r...[Details]
Digital signal processors have efficient numerical computing capabilities and can provide a good development environment, while programmable logic devices have highly flexible configurability. This...[Details]
Microelectromechanical systems (MEMS) are gradually entering the consumer, industrial, medical, automotive and computer application markets. Moreover, we cannot ignore their steady progress in the ins...[Details]
Pulse oximeters, non-invasive instruments used to monitor a patient's blood oxygen saturation, are benefiting from moving away from expensive discrete component solutions toward more integrated design...[Details]
Overview
Bioelectric signals are very weak, and there is strong interference when detecting them. Therefore, there are many technical difficulties in designing high-quality bioelectric ampli...[Details]
With the development of automatic control technology, the application of precision air pressure generation and control technology is becoming more and more extensive. However, the traditional valve...[Details]
This summary will introduce the transmitter characteristic test of TD terminal products - uplink power control. According to the 3GPP TS34.122 standard, UE uplink power control is divided into uplink ...[Details]
As microcontrollers become less expensive and more powerful, electrical designers are finding it more cost-effective to use multiple small controllers in both single-board and multi-board systems. ...[Details]
When you hear the word digital TV, you may feel fresh and excited, but when it comes to what digital TV is and what it can bring us, you may still be confused. You must be very eager to understa...[Details]
introduction
Controller Area Network (CAN) is a bus standard proposed by Bosch of Germany to solve the information communication between automotive electronic control units. With its excel...[Details]
Fetal monitoring is an important means to ensure the safety of perinatal mothers and fetuses and achieve eugenics. Intelligent fetal monitoring is a monitoring method that analyzes the health stat...[Details]
In today's world, terrorism poses a severe challenge to social development, national stability and human progress. "Terrorism, political corruption and environmental pollution" are known as the thr...[Details]
TMS320C62X is a new generation of high-performance fixed-point digital signal processor (
DSP
) chip
from Texas Instruments (
TI
). The software design problem based on
DSP
is to use...[Details]