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According to Bloomberg, Google is moving part of the hardware production of its Nest thermostat products and servers from mainland China to other regions to avoid upcoming tariffs. According to peop...[Details]
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LED backlights dominate the small LCD display market
& mid dot;Mobile phone, GPS , PDA
Large display devices have traditionally used cold cathode fluorescent lamps ( CCFL )
LED backl...[Details]
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1 Introduction At present, there are more and more types of electrical appliances in the power grid, and the operation of the power grid is becoming more and more complicated. It is increasingly impo...[Details]
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Sine wave output circuit with stable frequency and amplitude
Function of the circuit
The sine wave oscillation circuit that requires a very stable oscillation freq...[Details]
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The National Energy Administration has approved 320 energy industry standards including "Comprehensive Design Specifications for Land Acquisition and Resettlement of Hydropower Project Construction...[Details]
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During the pandemic, staying at home has become a last resort for Chinese families. In addition to the people cooking and petting cats, a Switch game called "Ring Fit Adventure" has also suddenly...[Details]
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Industry sources said that OLED display driver IC (DDI) supply may be tight in 2022, and the chip shortage may affect smartphone shipments. According to digitimes, sources pointed out that DDI supp...[Details]
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1. A board has the necessary power supply lines and the necessary simulation download and debug lines (such as J-link for STM32)
2. Install the development environment: keil4 (c51 or ARM series...[Details]
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#include
#include
#define uchar unsigned char
#define uint unsigned int
#define ON_138 PORTC|=BIT(PC7) //Enable 74138
#define OFF_138 PORTC&=~BIT(PC7)
const uchar table ={0x3f,0x06,0...[Details]
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Electric vehicles are developing rapidly, but the slow charging speed of lithium-ion batteries is still a problem. In order to make batteries with fast charging capabilities, researchers have long be...[Details]
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Before smartphones, there were mobile devices that existed in our lives, and Palm was one of the best. Unfortunately, it didn't survive the current wave of smartphones. After several changes of...[Details]
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Shenzhen Guowei's patent for voice-operated control communication devices uses voice control instead of physical button control, making it more convenient and intelligent for customers to use, and th...[Details]
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1. Hardware composition: 1. PIC32MM Development Board The PIC32MM series is Microchip's lowest power and most cost-effective 32-bit PIC32 microcontroller series, with integrated peripherals such as...[Details]
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UPS batteries play a very important role in UPS power supply equipment. At present, the maintenance-free sealed lead-acid batteries widely used in small and medium-sized UPS power supplies account for...[Details]
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Many Tianfu Energy Storage vanadium battery stacks have been successfully delivered. Recently, Sichuan Tianfu Energy Storage Technology Co., Ltd. has provided customers with many independently develop...[Details]
Test/Measurement
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