ST MEMS waterproof pressure sensor LPS27HHW boardThe LPS27HHWMEMS pressure sensor is an ultra-compact piezoresistive sensor that can be used as a digital output barometer. The device consists of a sen...
Recently, I have been unable to install the USB-blaster driver in the Windows 7 operating system, which has prevented me from downloading the program in the Quartus II software, as shown in the figure...
Today, I used LM258 as differential input and single power supply. I found that the voltages at the positive and negative input terminals of the op amp LM258 were not equal (virtual short does not hol...
[b]January 28th –[/b][url=http://www.yumen.com/link.php?url=http://www.williamlong.info%2Farchives%2F1238.html][b][color=#4e0a13]Edison Chen’s “pornographic photo scandal” The opening event of the ent...
Regarding the constant current of LED lamps, I wonder what good LED constant current ICs do you have? Have you used NU501 or HV9910? These two should be widely used in LED lamps....
[p=30, 2, left][size=4][/size][/p][size=4] The picture above is the XT1 of G2, and the picture below is the XT1 of FR57xx. Can you see the difference? The internal adjustable compensation capacitor of...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
Car lights, whether headlights, fog lights or tail lights, play an important role in driving safety. However, the material of the car lights determines that the probability of damage in a collision...[Details]
Portable power applications are broad and varied. Products range from wireless sensor nodes with average power consumption of only a few microwatts to in-vehicle medical or data acquisition systems...[Details]