Brake control system, circuit board and robot

The embodiment of the invention discloses a band-type brake control system, a circuit board and a robot. The band-type brake control system comprises an internal controller, a connecting unit, a first switch unit, a sampling unit and a band-type brake assembly. The internal controller is used for outputting band-type brake driving signals with different duty ratios on the basis of a control instruction sent by the upper computer, or outputting band-type brake driving signals with corresponding duty ratios on the basis of sampling signals sent by the sampling unit; the sampling unit is used for collecting a current signal and/or a voltage signal passing through the band-type brake assembly in real time, generating a sampling signal and transmitting the sampling signal to the internal controller; the first switch unit is used for receiving and amplifying the band-type brake driving signal and controlling the band-type brake assembly to execute the band-type brake action based on the band-type brake driving sign