公开(公告)号：US20160269015A1

公开(公告)日：2016-09-15

申请号：US15045763

申请日：2016-02-17

Applicant: DENSO CORPORATION

Inventor： Takahisa KOYASU ,  Yasuyuki MAEDA

IPC: H03K7/08 ,  H01H47/32

CPC classification number: H03K7/08 ,  B60L2240/429 ,  H01H47/325 ,  H02H3/08 ,  H02M1/32 ,  H02P27/08 ,  H02P29/032

Abstract: A drive control device includes: an input unit of a command; and a control unit setting a period for rising a current in an inductive load to first and third periods in first and second commands, and setting a period for falling the current to second and fourth periods in the first and second commands, respectively. When the first command is changed to the second command, and at least one middle PMW pulse is disposed between a forward PWM pulse corresponding to the first command and an after PWM pulse corresponding to the second command, the control unit sets fifth and sixth periods in the middle PWM pulse corresponding to the first and second periods of the forward PWM pulse to a length between the first and second periods in the forward PWM pulse and the third and fourth periods in the after PWM pulse, respectively.

Abstract translation: 驱动控制装置包括：命令的输入单元; 以及控制单元，在第一和第二命令中将用于将电感负载中的电流上升到第一和第三周期的周期，并且分别在第一和第二命令中设置用于将电流下降到第二和第四周期的周期。 当第一命令改变为第二命令时，并且至少一个中间PMW脉冲设置在与第一命令相对应的正向PWM脉冲和对应于第二命令的后PWM脉冲之间时，控制单元将第五和第六周期设置在 对应于正向PWM脉冲的第一和第二周期的中间PWM脉冲分别在正向PWM脉冲中的第一和第二周期之间的长度以及后PWM脉冲中的第三和第四周期。