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On March 23, Gree Electric Appliances disclosed the appearance design patent of its "smart watch", with the publication number CN306400245S. The patent abstract shows that the purpose of this...[Details]
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A relatively new approach to optimizing the efficiency and reliability of solar energy systems is to use micro-inverters connected to each solar panel. Equipping each solar panel with a separa...[Details]
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This article introduces the use of MSP430 as the main processor to implement a rechargeable touch screen remote control module. This design supports infrared (IR) signal transmission and can be expa...[Details]
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Abstract: This paper focuses on the design of a new display system based on ETX module, which mainly includes the digital conversion of analog video signals and the design of LVDS video bus. The pa...[Details]
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Benefiting from the improvement of living standards, the upgrading of medical consumption, the promotion of medical reform and the support of national industrial policies, the in vitro diagno...[Details]
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Samsung may see more growth in the coming months, possibly at the expense of rivals like Xiaomi, according to data from 91mobiles' 2020 Buyer Insights Survey. Image source: 91mobiles According to d...[Details]
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Altera intends to gradually strengthen FPGA co-processors through more advanced process technology and closer industry cooperation, significantly improve the overall performance of SoC FPGA, and crea...[Details]
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Broadband Matching Design of RF Power Amplifier
在很多远程通信、雷达或测试系统中,要求发射机功放工作在非常宽的频率范围。例如,工作于多个倍频程甚至于几十个倍频程。这就需要对射频功放进行宽带匹配设计,宽带功放具有一些显著的优点,它不需要调谐谐振电路,可实现快速频率捷变或发射宽的多模信号频谱。宽带匹配是宽带阻抗匹配的简称,是宽带射频功放以及最大功率...[Details]
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Digital multimeter is a high-precision instrument. The dual-integral ADC of the digital multimeter is the key device that enables the multimeter to achieve high precision. Figure 1 shows the...[Details]
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Virtually endless markets and applications can enjoy improved productivity, control, and efficiency through the Internet of Things (IoT). Many products and systems that offer connected technology hav...[Details]
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Mercedes-Benz and its authorized dealers issued the "Service Agreement", reaffirming the legal and compliant business philosophy and promising "never bundled sales or forced consumption". At the same...[Details]
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#include p IC .h __CONFIG(0x3f38); //Watchdog off, internal RC oscillation, RA6/RA7 as I/O //----------------------------------- //Delay function void delay() { int i; //define loop variab...[Details]
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Differential data line receivers are susceptible to noise when there is no input signal. This occurs when the bus driver is turned off or the connecting cable is damaged and disconnected. Typically, t...[Details]
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220VAC powered Sanyo 80P movement power supply circuit
Figure 220VAC powered Sanyo 80P movement power supply circuit
Figure 1 shows a 220VAC powered Sanyo 80P core power supply, which was widely...[Details]
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1. Operational amplifier design multimeter ohm range I spent the whole day today sorting out the megohmmeter. I didn't make much progress, but I finally understood the principle of meter head defle...[Details]