Is this circuit not working? Experts, 18V is increased to 20V and then reduced to 9V, 12V, and 18V. When powered on, when the 18V output is on, the indicator light flashes, and the output of the boost...
[size=14px]I need help from all the experts. My computer only has AD6.0 hard disk version. Is there any way to convert it? Or can you help me convert it? Thank you very much~~[/size]...
On August 12, LED display manufacturer Lanpu Video reported Fuman Electronics under its real name for allegedly abusing its market dominance to monopolize the relevant chip market.Image source: Screen...
The main contents of "Circuit Principles" include three parts: resistance circuit, transient analysis of dynamic linear circuit and steady-state analysis of dynamic linear circuit. The contents of res...
MSP430 interrupt priority, on/off, and interrupt nestingThe priority order from high to low is:PORT2_VECTOR (1 * 2u) /* 0xFFE2 Port 2 */PORT1_VECTOR (4 * 2u) /* 0xFFE8 Port 1 */TIMERA1_VECTOR (5 * 2u)...
As the title says, if the PWM signal frequency is 46.875k, then the period is about 21.333usIs it feasible to use pc817 optocoupler? The maximum frequency is 80khz and the response time is 18us. How t...
On March 13, the reporter learned from the Shaanxi Provincial Development and Reform Commission that the Shaanxi Provincial Development and Reform Commission and the Northwest Regulatory Bureau of the...[Details]
Abstract: This paper introduces a design of a multi-node home security system with AT89S52 single-chip microcomputer as the control core, which transmits information through DTMF public telephone ...[Details]
There are signs that Apple may release a third-generation iPhone SE in a few months. Recently, concept renderings of this device appeared on the Internet, giving us a preliminary understanding of t...[Details]
Power Integration (PI) recently announced the launch of the SCALE-iFlex XLT series of dual-channel plug-and-play gate drivers, which are suitable for single LV100 (Mitsubishi), XHP 2 (Infineon), HP...[Details]
According to the National Development and Reform Commission on June 30, the Catalogue of Industries Encouraged for Foreign Investment (2019 Edition) has been approved by the CPC Central Committee and...[Details]
The wireless microphone pull-rod teaching stick introduced in this article combines an FM wireless microphone and a portable pull-rod teaching stick into one. The metal part of the teaching stick is ...[Details]
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Since its establishment, the Global Energy Internet European Research Institute has closely followed the strategic dep...[Details]
Market research firm TrendForce pointed out in its latest report that Samsung is currently affected by the lockdown in Xi'an mainly due to the difficulty in arranging manpower shifts. If the epidemic...[Details]
GC4931F/S is a three-phase brushless DC motor pre-driver chip. The chip can drive N-type power MOSFET with a maximum power supply of 36V. The chip state switching logic is determined by three Hall ...[Details]
Use ST's HAL library for development. The RGB screen is a 480*272 4.3-inch LCD. Because driving the RGB screen requires more memory, Therefore, an external SDRAM is used, and the memory is 32M bytes....[Details]
The widespread use of LED energy-saving lamps has brought new changes to people's daily lives, but it has also brought a large number of broken energy-saving lamps. According to statistics, most of...[Details]
Here we introduce a BTL power amplifier circuit that does not require debugging, has high fidelity and low cost. You can choose the final power amplifier integrated circuit according to your own si...[Details]
In view of the influence of temperature/humidity on ammunition storage and the drawbacks of the traditional ammunition depot temperature and humidity monitoring system, an intelligent monitoring sys...[Details]
As the name implies, non-contact temperature sensors are sensors that can measure temperature without direct contact with the object being measured. This type of sensor is widely used in industry, ...[Details]
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