measurement controller input impedance, when it is more than 10 & Omega; As normal, otherwise the power input terminal short circuit. 5 V. Controller Angle and phase sequence judgment according to judgment and brushless truth table and the only controller Angle to determine, for example.
2 judgment programming controller Angle
can be seen from table 1 when a, motor, b, c took & other; 0', the controller Angle is 120 & deg; When A, B, C and tube are not conduction; The controller is 60 & deg; On the tube when A and B of the tube conduction, so can according to A, B, c took & other; 0', A, B, C of the output signal to determine the Angle of the controller. The flow chart as shown in figure 4.
system design using STCl2C5410AD single chip microcomputer as control chip, simple circuit, measuring precision, meet the electric brushless motor controller detection requirements, is capable of detecting controller is normal transportation and the brake handle end, motor, can judge the controller's point of view, hall control phase sequence and the corresponding motor power phase sequence is consistent. Hope to get better in the future application of the design improvement and perfect.
