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With the continuous emergence of new audio-visual equipment, the task of reading the circuit diagram of the whole machine and parts has increased. The structure of the circuit diagram of the laser...[Details]
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Design Idea When the motherboard is connected to a working input power supply, a transient current will flow into the input decoupling capacitor of the power converter on the motherboard. This i...[Details]
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OFDM is a multi-carrier digital transmission system. With its unique advantages, it is widely used in digital audio broadcasting, digital TV broadcasting, wireless broadband and other fields, and w...[Details]
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Most of the existing neon lights and lantern controllers use special integrated circuits, which have multiple flashing modes and generally only provide 4 to 16 outputs. Since there are quite a lot ...[Details]
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The CIIE was held as scheduled despite the normalization of epidemic prevention and control, which made Canon receive China's confidence and determination to expand opening up, share the Chinese mark...[Details]
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Application platform: STM32F030F4P6 ST official library: STM32Cube_FW_F0_V1.9.0 background knowledge For most MCUs and microcontrollers (ARM, x86), the address space is in bytes, which means that ...[Details]
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In the course of the times, China's home appliance industry has gradually formed a complete industrial chain. However, since 2017, the trend of intelligence sweeping the home appliance industry has i...[Details]
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With the launch of HarmonyOS 2, Huawei is currently running EMUI and HarmonyOS in parallel on mobile phones. Considering that the HarmonyOS 2.0 upgrade covers models as early as Kirin 960, it ...[Details]
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HMD has already remastered some of Nokia's classic products, from the 3310 (2017) to the 8110 4G, and the most recent 6300 4G. According to a new report, the controversial Nokia 3650 will be th...[Details]
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Power semiconductors are mainly used as switches and rectifiers in electronic components. They are also semiconductor materials such as silicon, gallium arsenide, and silicon nitride. They are electr...[Details]
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1. The values tested by the domestic multimeter are unbelievable Some people don’t dare to believe the values tested by domestic multimeters, and feel that they are unreliable. However, many dome...[Details]
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With the continuous acceleration of the pace of life and the continuous improvement of the economic level, the demand for a sense of security among home users is gradually increasing. In many large ...[Details]
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0 Introduction
During the acceptance of a new house, it is necessary to test various indicators of the house, and whether the roof is leaking is an important inspection content. There are already in...[Details]
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Component selection: S1 and S2 switches are self-locking power switches with contact current of SA or above; S3 uses a protective break button. KM uses an AC contactor with a coil voltage of 220V and...[Details]
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Linear regulator integrated circuits (ICs) step down voltage from a higher voltage to a lower voltage without the need for an inductor. A low dropout (LDO) linear regulator is a special type of l...[Details]
RF/Wirelessly
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