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As a heavy participant in the field of data visualization, the frontline has witnessed the implementation of many HTML5/Web-based, 2D/3D-based projects in the industrial sector. Hundreds of industria...[Details]
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introduction
At present, wired meter reading is common in the domestic power centralized meter reading system, such as RS485 bus, power carrier meter reading, etc. However, due to the cost and ...[Details]
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The L6561 produced by ST is a PFC controller that adopts variable frequency peak current control. The Boost PFC converter operates in the critical continuous mode (CRM) of the inductor current, and...[Details]
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Laser cutting and engraving are widely used in the advertising industry and the model aircraft manufacturing industry for their high precision and good visual effects. In the development of large-siz...[Details]
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Abstract: The system is based on pyroelectric infrared sensor. Through the design of peripheral circuits and corresponding control circuits, it realizes real-time statistics of the number of people...[Details]
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Some abnormal phenomena seen during the debugging process, and the subsequent solutions. In fact, many
engineers
believe that designing
power supplies
is a very experience-intensive ...[Details]
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At the just-concluded Google I/O 2022 conference, Google launched its first TWS noise-cancelling headphones, Pixel Buds Pro, which are priced at NT$5,990 (approximately RMB 1,354).
Pixel...[Details]
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Why should
LEDs
be tested
in ohms?
Some companies produce LEDs, but they do not test ohms. They only test current and voltage. Of course, the static ohms can be calculated based ...[Details]
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;**************************************************** ; Key interrupt alarm.dt ;**************************************************** PORT6 == 0x06 ; Define port 6, 7 PORT7 == 0x07 ;----------------...[Details]
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The high-voltage differential probe is designed using the principle of differential circuits. Its measurement voltage is up to 8kv and the pulse decay time is up to 11ms. It is an ideal tool for cali...[Details]
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In the process of learning STM32, we often encounter enabling the clock. For example, in the uart_init() function, we need to enable the serial port: RCC- APB2ENR|=1 4; //Enable the clock of serial...[Details]
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In 485 communication, in order to facilitate testing, a test quantity was added to the front end of the 485 chip, but TTL was used for direct communication. However, in the actual PCB test, if the P5...[Details]
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Application Technology丨Automotive Grade High Precision GNSS RF-SoC Chip KT5030A
Application field: Automotive grade chips
Unique advantages:
A...[Details]
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In Cortex-M3, there are 8 types of GPIO configurations: (1) GPIO_Mode_AIN analog input (2) GPIO_Mode_IN_FLOATING floating input (3) GPIO_Mode_IPD pull-down input (4) GPIO_Mode_IPU pull-up input (5...[Details]
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A junction temperature calibration method for Si IGBT and SiC MOSFET power devices is proposed, which realizes low natural anti-interference junction temperature calibration.
A circuit f...[Details]
MCU
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