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In the development of using pwm to drive the buzzer, the pwm is always at a low potential after it stops outputting, so the buzzer still consumes 70mah of current even though it is not working. There...[Details]
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There are mainly the following types of varistor overheat protection technologies:
(1) Thermal fuse technology. This technology is to install a low-melting-point metal protected by wax on the varis...[Details]
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3G mobile communications, such as W-CDMA, EDGE, and CDMA2000, allow our mobile phones to access the colorful Internet world at high speed. To meet this bandwidth requirement, base stations (the interf...[Details]
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Uninterruptible power supply (UPS) is widely used in the field of communication. It is becoming more and more common to install UPS (uninterruptible power supply) power supply systems in communication...[Details]
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When charging lithium batteries in series , each battery should be charged evenly, otherwise the performance and life of the entire battery group will be affected during use. Common balanced chargin...[Details]
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1-8. Dual-excitation transformer switching power supply
The so-called dual-excitation transformer switching power supply means that within one working cycle, the primary coil of the transf...[Details]
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According to foreign media reports, Waymo has applied for a patent for its new airbag, which can completely cover the passengers in a serious car accident and provide more effective protection. (I...[Details]
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To obtain a VM Image in Azure China, you can execute the following script. Get-AzureRmVMImagePublisher -Location chinaeast Get-AzureRmVMImageOffer -Location chinaeast -PublisherName 'OpenLogic' ...[Details]
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1. General framework: realize the communication between MCU and PC. The PC (USB interface) sends characters, which are converted to RS232 via USB, and then to RS485 via RS232, and then received by t...[Details]
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There is a special power-off protection register (BKP register) in arm cortex-m3. When the main power is cut off or the system generates a reset time, the BKP register can still maintain its co...[Details]
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SDP's Guangzhou Zengcheng panel plant, which has caused a stir in the panel industry on both sides of the Taiwan Strait in the past month, was originally thought to be able to start mass production a...[Details]
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The ultrasonic thickness gauge measures thickness based on the principle of ultrasonic pulse reflection. When the ultrasonic pulse emitted by the probe passes through the object to be measured and rea...[Details]
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PI C12C508/509 is an 8-bit single-chip microcomputer with 8-pin package , which is very suitable for embedding into various electronic devices for intelligent development. The following introduces t...[Details]
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Cypress Semiconductor Corporation recently announced the launch of an automatic tuning solution for its CapSense® capacitive touch sensing devices. Existing solutions require engineers to spend a...[Details]
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Introduction
Siemens motors and drives are widely used in the field of industrial automation, and their performance and reliability have been widely recognized.
The role of en...[Details]
Embedded System
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