Patent ID: 7741799

Claim:
A brushless DC motor driver circuit, comprising: a power supply end electrically connected with a DC power source for supplying the power of the brushless DC motor driver circuit; a drive circuit comprising a first transistor and a second transistor receiving two complementary digital command signals respectively, with the two complementary digital command signals changing between an ON command signal and an OFF command signal; and a transient current suppression circuit comprising a first auxiliary transistor and a second auxiliary transistor, with the first auxiliary transistor receiving one of the complementary digital command signals different from the other one received by the first transistor and the second auxiliary transistor receiving the other one of the complementary digital command signals different from the one received by the second transistor, wherein each of the first transistor and the second transistor has a first pin with the first pins of the first and second transistors receiving the two complementary digital signals, and wherein each of the first and second auxiliary transistors has a first pin, a second pin, and a third pin, with the first pin of the first auxiliary transistor and the second pin of the second auxiliary transistor jointly connecting to the first pin of the second transistor, with the first pin of the second auxiliary transistor and the second pin of the first auxiliary transistor jointly connecting to the first pin of the first transistor, with the third pins connecting to ground.