Fan rotating speed control system and method for electric vehicle battery charger
A fan speed and control system technology, applied in engine control, pump control, machine/engine, etc., can solve problems such as inaccurate measurement, inconsistent fan speed, nonlinear resistance-temperature curve, etc.
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[0121] In order to better understand the present invention, the content of the present invention will be further described below in conjunction with the accompanying drawings.
[0122] Such as figure 1 The fan speed control system shown in the first embodiment of the present invention is located in a charging module, including a fan control unit, a fan and a temperature measurement unit; the fan control unit includes a fan speed control circuit, a fan input voltage measurement circuit Rotate the control circuit synchronously with the fan.
[0123] The fan speed control system should share the core processor and CAN bus communication circuit with other control systems in the charging module.
[0124] The charging module core processor has the following technical details:
[0125] The core processor adopts a digital signal processor (DSP), and the DSP chip has powerful mathematical operation capabilities, and has a wealth of on-chip peripherals and interfaces, including CAN bu...
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