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To replace HID with LEDs in street and area lighting applications and produce equivalent light output, large arrays of LEDs are required. To drive these large arrays of LEDs, designers can choose d...[Details]
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Although electric vehicle (EV) and hybrid electric vehicle (HEV) technology is still in an evolutionary stage of development, concerns about the long-term supply of hydrocarbon fuels and environmenta...[Details]
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For LED driving, the constant current method is better than the constant voltage method. In the circuit proposed in this article, the constant voltage regulator commonly used for LEDs is replaced wit...[Details]
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introduction As a non-polluting energy source, the research on the utilization of solar energy has always been a hot topic. In order to improve the efficiency of solar energy conversion, the rese...[Details]
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The LCD screen itself does not emit light. In order to clearly see the content of the LED display, a certain amount of white light backlight is required. The backlight is an optical component insid...[Details]
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This should start from analyzing the basic elements that form the consequences of electromagnetic interference. The electromagnetic energy emitted by the electromagnetic disturbance source is trans...[Details]
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Output ripple noise plays an important role in designing power supply circuits, but how much is appropriate? If the requirements are relaxed, the ripple noise is too large, the circuit cannot work pr...[Details]
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In the microwave field, frequency synthesizers are the core components of measuring instruments. High-performance measuring instruments need to have large bandwidth, high resolution and low phase nois...[Details]
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The LED general lighting market has whetted everyone's appetite and attracted so much attention today for the following three reasons: first, its market is large enough; second, the first year of...[Details]
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1. UPS selection for control system
The automation control system of an enterprise production line is generally composed of a secondary industrial computer and a field workstation (PLC, DSC)....[Details]
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Hand-operated self-generating flashlight
1. Energy-saving product, built-in micro power generation system using Faraday principle, just press the power generation handle lightly, it can power ...[Details]
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introduction
With
the improvement of
IC
device integration, the gradual miniaturization of equipment and the increasing speed of devices,
the
EMI
problem in electronic produc...[Details]
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Mobile phones are developing at a speed that exceeds Moore's Law, from single-core to 8-core, screens to 1080p, and memory from dozens of MB to 2 GB. Everything in the phone is being updated, but t...[Details]
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All the above analysis
In Figure 1-19, when the working switch turns from on to off, the back electromotive force generated by the secondary coil of the switching power supply transfor...[Details]
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Abstract: Analyze the working principle and existing problems of the traditional double half-wave rectifier circuit, propose and analyze the principle and advantages of the improved high-frequen...[Details]
Analog electronics
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