Extension circuit board
A circuit board and NOT gate circuit technology, applied in the mechanical field, can solve the problem that the circuit parameters of the CPU circuit board cannot be collected in real time.
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[0019] figure 1 It is a schematic diagram of the principle of the extended circuit board provided by the embodiment of the present invention, figure 2 It is a schematic diagram of the use of the extended circuit board provided by the embodiment of the present invention.
[0020] see figure 1 and figure 2 , the embodiment of the present invention provides an extension circuit board, which is used to extend the installation interface of the CPU circuit board of the subway converter from the inside of the chassis to the outside of the chassis, so as to facilitate the collection of required test data. The extension circuit board includes corresponding settings The first output interface 1 and the first input interface 2, the second output interface 4 and the second input interface 5, the first power interface 7 and the second power interface 8. The number of binding posts of the first output interface 1 and the first input interface 2 correspond one-to-one, and a first NOT ga...
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