Power output board card applied to rail transit

The invention discloses a power output board card applied to rail transit, belonging to the field of rail transit. The power output board card comprises a central processing unit, a multi-path power supply module used for separately converting an input 110-V voltage into an isolated 5-V voltage, convertingthe input 110-V voltage into a 3.3-V voltage, converting input 110-V voltage into a 7-V voltage in an isolated manner and converting the 110-V voltage into a 12-V voltage in an isolated manner, a primary side driving module, a secondary side driving module, a voltage conversion module is usedfor converting an input voltage into a 5-V voltage, a current acquisition module used for acquiring a current value of the primary side driving module, a voltage acquisition module used for acquiringa voltage value of the voltage conversion module, a storage and recording module used for storing and recording a current value and a voltage value transmitted by the central processing unit, and a CAN communication interface