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#include //------------------------------------------------------------ // Use PIC16F887 chip to output 50k Hz square wave with 50% duty cycle //-------------------------------------------------...[Details]
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introduction Electronic information and digital image processing technology have been widely used in various fields, and the informatization of vehicle-mounted systems has become an important sym...[Details]
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PFC main circuit schematic diagram
Figure PFC main circuit schematic
The schematic diagram of the lossless absorption PFC main circuit is shown in the figure. In the figure, B1 is a rectifi...[Details]
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Since the launch of AirPods, the Beats series seems to have gradually become Apple's main product line in the market segment. Recently, Powerbeats Pro, which was updated following AirPods, has appear...[Details]
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In recent years, competition in the silicon carbide (SiC) market has been in full swing, and the industry's investment in third-generation semiconductors has been hot. As a leading global semiconduct...[Details]
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Today, digital blogger @长安数码君 exposed a new Huawei phone that has not yet been released. The picture shows that the phone has four rear cameras and the main camera is 48 million pixels. ...[Details]
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Step 1: How to use the test lead: Step 2: Continuity measurement of the multimeter: Turn the rotary switch to the buzzer position, then insert the test lead accurately so that the other end of the ...[Details]
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The ZigBee Alliance was established in August 2001. However, a milestone in the development of this technology was that in the second half of 2002, four giants, Invensys of the UK, Mitsubishi Electric...[Details]
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In single-phase low-power photovoltaic grid-connected systems, there are two topological structures: isolated and non-isolated. The isolated type has many disadvantages such as high cost and large ...[Details]
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Battery life is an important factor in the design of mobile devices. As many mobile devices add more features, these added features quickly reduce operating time. Engineers must use complex power...[Details]
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Linear Technology Corporation introduces the LTC3105, a high performance, synchronous
boost converter
that includes maximum power point control (MPPC) and starts up from inputs as low as ...[Details]
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Recently, Zhou Zhiping, a professor at Peking University and a veteran in the semiconductor industry, said that it would take China at least "five to ten years" to catch up with the United States, So...[Details]
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The 89S52 and 89C51 in ATMEL's 89S52 series have the same functions. The instructions are compatible. HEX programs can be used directly without any conversion. The 89S52 has a watchdog function compar...[Details]
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For Apple now, it is rebalancing the order of OLED screen suppliers, weakening Samsung while continuously strengthening the positions of LG and BOE. Of course, the prerequisite is that the corre...[Details]
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According to the latest spy photos released by the well-known digital blogger @数码疯报, the new iPhone 13mini will use a dual-mode camera module and continue the square configuration of its predecessor,...[Details]