Electronic control unit, and electric power steering device using the same
AssigneeDenso Corporation
InventorHiroyasu Sugiura
Life of this patent
Estimating the term…
Abstract
In an electronic control unit, a current circuit part is provided on a substrate and includes a switching element. During the control of a control target, a current having a relatively large value of a predetermined value or more flows in the current circuit part. A control circuit part is provided on the substrate and includes a control part that controls actuation of the switching element on the basis of a control signal to control the control target. A current input part is provided on the substrate so as to be located opposite to the control circuit with respect to the current circuit portion. To the current input portion, the current to be supplied to the control target via the current circuit portion is input.
Claims17
An electronic control unit for controlling a control target, the electronic control unit comprising:
- a substrate;
- a current circuit part which is provided on the substrate and includes a switching element and in which a current flows during control of the control target;
- a control circuit part which is provided on the substrate and includes a control part that is configured to control actuation of the switching element on the basis of a control signal to control the control target;
- and
- a current input part which is provided on the substrate so as to be located opposite to the control circuit part with respect to the current circuit part and to which the current to be supplied to the control target via the current circuit part is input, wherein
- the control circuit part further includes a control signal input part,
- the control signal input part includes a control terminal and a reference potential terminal,
- the control terminal is to be connected to an external sensor to receive the control signal to be transmitted to the control part,
- the reference potential terminal is to be connected to a GND terminal of the external sensor, and
- the reference potential terminal and the GND terminal are at a same potential.
An electronic control unit for controlling a control target, the electronic control unit comprising:
- a substrate;
- a current circuit part which is provided on the substrate and includes a switching element and in which a current flows during control of the control target;
- a control circuit part which is provided on the substrate and includes a control part that is configured to control actuation of the switching element on the basis of a control signal to control the control target;
- a current input part which is provided on the substrate so as to be located opposite to the control circuit part with respect to the current circuit part and to which the current to be supplied to the control target via the current circuit part is input;
- and
- a heat dissipator configured to dissipate heat generated upon actuation of the switching element,
- wherein the substrate has a surface wire on a surface of the substrate which is adjacent to the heat dissipator,
- wherein the surface wire has a connection point electrically connected to the heat dissipator, and
- wherein the surface wire has one or more connection points for one current circuit part.
Dependencies are inferred from the claim text.