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Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
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1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
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1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
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Portable power applications are broad and varied. Products range from wireless sensor nodes with average power consumption of only a few microwatts to in-vehicle medical or data acquisition systems...[Details]
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After the development of the single-chip microcomputer application system is completed, the system often freezes at the work site due to noise interference, electromagnetic interference, overvoltag...[Details]
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1. Introduction
Power flow calculation is the basis for studying steady-state problems of power systems. Since the application of computers to calculate power flow distribution in power sy...[Details]
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0 Introduction
With the continuous progress of science and technology, industrial control systems are developing towards openness, digitization, intelligence, distribution and networking. Field...[Details]
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The ISL97691 is Intersil's highly integrated 4 channel LED driver for single cell Li-Ion battery operated mobile displays requiring analog dimming, and for 3D mobile display applications. It drives fo...[Details]
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1Select by use environment
The operating environment conditions mainly refer to temperature (maximum and minimum), humidity (generally refers to the maximum relative humidity at 40 degrees Cel...[Details]
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How to Test Semiconductor Diodes Cleverly
The diode test shown in the figure is simple and easy to perform, and the test is convenient and fast.
In the figure, T is a...[Details]
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Thermal simulation is an important part of developing power products and providing product material guidelines.
The trend of optimizing module form factor is the development of end equipm...[Details]
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With the development of factory automation technology, frequency converters have become increasingly important driving and control equipment. Therefore, ensuring the reliable operation of frequen...[Details]
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Abstract:
FAN7710V is a new IC that integrates the ballast control circuit and half-bridge high-side and low-side power MOSFETs on the same chip. The energy-saving lamp ballast based on FAN77...[Details]
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One diode makes fluorescent lamps start quickly at low temperatures
Ordinary fluorescent lamps are difficult to start at voltages of 200-170V or in winter. If a diode is added to the flu...[Details]
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In some important departments or warehouses, alarm devices are often installed to prevent outsiders from illegally entering. Figure 4-6-3(a) shows the system block diagram of an alarm device.
...[Details]
Embedded System
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