H type of a brush type control circuit

Published:2011/6/20 9:13:00 Author:Fiona | Keyword: H type, a brush type control | From:SeekIC

MC33035 can use the least amount of devices to control a brushless motor by driving an H electricity four bridge.The key of this control is:To code the input sensor into 100, meanwhile,when the controller forward / reverse pin is logic level 1,it should also produce the drive signal of top to left Q1 and button to right Q3, and when the forward / reverse pin is logic level,it should also produce the drive signal of top to right Q4 and button to left Q2.The code ensures that H-drive meets the direction and speed control requirements. The controller can work properly in about 25kHz PWM frequency.



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