Summary:
With the continuous maturity of the application of single-chip technology in the field of digital control, the introduction of single-chip microcomputer into the research and development of DC stabilized power supply has become an important topic in power supply research. The power supply is designed to use the AT89S51 single-chip microcomputer as the system main controller, and the AD7543 chip as the output voltage control adjustment module. The DC regulated power supply adopts digital regulation technology, and its output voltage adjustment range is 5V~15V, the stepping voltage level is up to 0.1V, and it has fault protection and alarm functions such as short circuit and overcurrent, which is not only flexible, but also convenient for maintenance and repair. The system has low cost and strong scalability, and is especially suitable for the field of digital control with fast response and high precision.
DC stabilized power supply system based on single chip microcomputer:
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Semiconductor Fuse And Ferrite
Fuse refers to an electric appliance that, when the current exceeds the specified value, melts the fuse and disconnects the circuit with the heat generated by itself.When the current exceeds the specified value for a period of time, the fuse melts and disconnects the circuit with the heat generated by the fuse itself.A current protector made from this principle.The fuse is widely used in high and low voltage power distribution system and control system as well as power equipment.
Ferrite is a metal oxide with ferrous magnetism.As far as electrical properties are concerned, the resistivity of ferrite is much larger than that of single metal or alloy magnetic materials, and it has higher dielectric properties.Ferrite magnetic energy also shows high permeability at high frequencies.As a result, ferrite has become a non-metallic magnetic material widely used in the field of high frequency and weak current.Due to the low ferrite magnetic energy stored in the unit volume, saturated magnetic induction strength (Bs) and low (usually only pure iron 1/3 ~ 1/5), and thus limits its higher requirements in the low-frequency magnetic energy density in the field of high voltage and high power applications.
Semiconductor Fuse, Fuse Cutout, Protection Fuse, Square Fuse, Fuse Link, Ceramic Fuse, Fuse Box, Fuse Resistors
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