[i=s]This post was last edited by RF-刘海石 on 2020-5-24 12:02[/i]Finally, the project was completed and is being tested by the customer. This project lasted for 4 months. It started in mid-December last...
The company is going to make a device recently. The CPU uses stm32f072c8t6 and is charged via USB. Now there is a problem: how to detect when the USB port of the device is connected to a PC or a charg...
There is a problem when making the PCB of the L298N dual-bridge DC motor driver. Please see the picture: Please help me solve it. The component pins connected to +5 and +12 are marked as GND. Thank yo...
[font=微软雅黑][size=3]Driverless cars have become one of the important trends in automobile development. Have you heard of driverless buses? [/size][/font] [font=微软雅黑][size=3]Let's first watch [color=#33...
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]
The capacity of a battery depends on the amount of charge and discharge, in addition to some factors of the battery itself. Obviously, if the charge and discharge of the battery can be recorded all...[Details]
As a new type of centralized and decentralized elevator control system, serial communication has been widely used in China. Compared with the previous centralized and unified control system, each s...[Details]
Reliability and real-time performance are the basic requirements for control systems. Initially, motor control used analog circuits with discrete components. With the advancement of electronic tech...[Details]
The total coal reserves of Inner Mongolia Autonomous Region in China have been found to exceed 700 billion tons, ranking first in the country. Its short-distance transportation mode is still mainly by...[Details]
1. Introduction
Power flow calculation is the basis for studying steady-state problems of power systems. Since the application of computers to calculate power flow distribution in power sy...[Details]
0 Introduction
With the continuous progress of science and technology, industrial control systems are developing towards openness, digitization, intelligence, distribution and networking. Field...[Details]
The ISL97691 is Intersil's highly integrated 4 channel LED driver for single cell Li-Ion battery operated mobile displays requiring analog dimming, and for 3D mobile display applications. It drives fo...[Details]
1Select by use environment
The operating environment conditions mainly refer to temperature (maximum and minimum), humidity (generally refers to the maximum relative humidity at 40 degrees Cel...[Details]
With the development of factory automation technology, frequency converters have become increasingly important driving and control equipment. Therefore, ensuring the reliable operation of frequen...[Details]
In recent years, the high
brightness
light emitting diode (HB-
LED
) market has developed rapidly.
The LED light efficiency
has been increasing, and the average cost per
...[Details]
Abstract:
FAN7710V is a new IC that integrates the ballast control circuit and half-bridge high-side and low-side power MOSFETs on the same chip. The energy-saving lamp ballast based on FAN77...[Details]
1. Set the switch operating frequency: f=60kHz, output current Io=1A; according to the transformer, input and output voltages, calculate the actual maximum duty cycle Dmax=0.457;
2. Calcul...[Details]
The structure of the JTAG debugging interface is shown in Figure 1. It consists of a test access port TAP (Test Access Port) controller, bypass register, instruction register and data register, and an...[Details]
RF/Wirelessly
京公网安备 11010802033920号
EEWORLD
