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The driving circuit is a Buck-Boost-Buck circuit controlled by HV9931, which is directly powered by AC power to achieve constant current drive and has PFC function; the dimming method adopts PWM d...[Details]
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STUTTGART, Dec. 6, 2022 /PRNewswire/ -- DEKRA launches the first cybersecurity certification program for all types of electric vehicle service equipment (EVSE) and becomes the first company in the wo...[Details]
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Smart meters are smart terminals of smart grids. In addition to the basic electricity metering function of traditional energy meters, in order to adapt to the use of smart grids and new energy, the...[Details]
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Honor Mobile now offers a free extended warranty service for new users. Before December 31, new users can go to the app on their phones to receive a six-month extended warranty service in two time p...[Details]
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Who would have thought that @Meizu Technology would give itself a mouthful of “poison milk”… On the day of Qingming Festival (the 4th), @Meizu Technology released a "hell" copy. When promoting th...[Details]
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Tieto, a world-leading software services company and member of the ST Partner Program, and STMicroelectronics, a global semiconductor leader serving multiple electronics applications, today announced...[Details]
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(3) OTL power amplifier
The transformerless Class B push-pull amplifier, referred to as OTL circuit, is a power amplifier with excellent performance.
For ease of explanation, we first int...[Details]
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1. Function: Used to jump between programs; 2. Examples typedef void(*pFunction)(void); u32 JumpAddress; pFunction Jump_To_Application; void GotoAPPMain(void) { JumpAddress = *(__IO uint32_t*) (...[Details]
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1 Working Principle
Compared with water supply from water towers or high-level water tanks on rooftops, variable frequency speed regulation constant pressure water supply has the advantages of...[Details]
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#include
#include macros.h
#define uchar unsigned char
#define uint unsigned int
//Define the output io port
#define Y1_OUT DDRC|=BIT(5);
#define Y1_H PORTC|=BIT(5);
#define Y1_L PORTC&=~B...[Details]
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/****************************************************************************/ /* */ /* SERIAL.C: Interrupt Controlled ...[Details]
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On October 25, according to Huawei's official website, today, the 7th Global Ultra-Broadband Fixed Forum (UBBF 2021) was held in Dubai. During the event, Wang Jinping, Marketing Director of Huawei NC...[Details]
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Switching power supplies are widely used in communication, control, computer and other fields due to their small size and high power factor. However, due to the electromagnetic interference, their ...[Details]
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Today (15th), TSMC held an earnings conference. In response to the outside world's concerns about market demand and chip shortages, President Wei Zhejia said that overall semiconductor demand remains...[Details]
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GSM is a common VOIP voice codec library, which is implemented in Linux using libgsm. The libgsm library is needed in the project. So try to compile the GSM library directly. The official website h...[Details]
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