Bus arrival reminding system
A bus, AC-DC conversion technology, applied in traffic control system, road vehicle traffic control system, high-efficiency power electronic conversion, etc., to achieve constant power output, prevent damage, and prolong working life
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[0018] For a better understanding of the present invention, the following examples are used to illustrate.
[0019] refer to figure 1 , which illustrates a bus arrival reminder system provided by the present invention, including sequence electronic
[0020] Connected AC-DC conversion circuit module, useless band filter circuit module, DC-AC inverter circuit module, and output device, the bus arrival reminder system also includes an electromagnetic filter for suppressing high-frequency current harmonics from polluting the power grid Circuit, a power factor adjustment circuit for improving power factor, reducing harmonics, and realizing constant power output, and a protection circuit for preventing damage to electronic tubes caused by abnormal conditions. The electromagnetic filter circuit is connected to the voltage input terminal and the AC-DC converter Between the circuit modules, the power factor adjustment circuit is connected between the AC-DC conversion circuit module an...
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