Fuel cell monolithic voltage monitor of vehicle
A fuel cell and monolithic voltage technology, which is used in electrical devices, measuring devices, measuring current/voltage, etc., can solve the problems of single-chip circuit burnout, insufficient safety, and high system cost, and achieves improved electromagnetic compatibility, measurement The effect of fast speed and high measurement accuracy
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[0028] The present invention will be further described below in conjunction with the accompanying drawings.
[0029] figure 1 Shown is the structural block diagram of the fuel cell single chip voltage monitoring device, in which, 1 is the fuel cell single chip, 2 is the optocoupler gating circuit, 3 is the isolation circuit, 4 is the absolute value circuit, 5 is the hardware interlock circuit, and 6 is the single chip microcomputer and a CAN communication circuit, 7 is the main controller of the fuel cell, 8 is the I / O port of the single-chip microcomputer, and 9 is the enabling port of the decoder. Shown in the dotted line box is the structure of the device, including optocoupler gating circuit 2, isolation circuit 3, absolute value circuit 4, hardware interlock circuit 5, single-chip microcomputer and CAN communication circuit 6. The input terminals of the optocoupler gating circuit 2 are sequentially connected to each single chip 1 of the fuel cell, and the output terminal...
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