公开(公告)号：US5287047A

公开(公告)日：1994-02-15

申请号：US847275

申请日：1992-03-10

申请人： Yorinobu Murayama ,  Kenji Otani

发明人： Yorinobu Murayama ,  Kenji Otani

IPC分类号： H01L27/082 ,  H02P3/08 ,  H02P3/12 ,  H01L25/00

CPC分类号： H02P3/12 ,  H01L27/0821 ,  H02P3/08

摘要： A motor drive circuit, in which a first transistor at a drive stage, a second transistor at an output stage to be driven by the first transistor and a third transistor downstream the output stage for a short braking operation are formed in a common substrate or a common well of the substrate, a region of either a P type or an N type in either the substrate or the well is connected with the first transistor via a conductor so that a parasitic transistor is formed in which the substrate or the well serves as its base, whereby a current flowing from the first transistor to the second transistor during the short braking operation is sinked by turning on the parasitic transistor.

摘要翻译： 一种电动机驱动电路，其中驱动级的第一晶体管，在第一晶体管驱动的输出级的第二晶体管和用于短时制动操作的输出级下游的第三晶体管形成在公共衬底或 衬底或衬底或阱中的P型或N型区域经由导体与第一晶体管连接，从而形成寄生晶体管，其中衬底或阱用作衬底或阱 从而通过接通寄生晶体管而在短时间制动操作期间从第一晶体管流向第二晶体管的电流被吸收。